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Barbara Gravendeel

Barbara Gravendeel

I am a botanist and fascinated by the emerging field of evolution and development in an ecological context (eco-evodevo). I investigate how molecular mechanisms shape the morphological diversity of plant organs, both over deep evolutionary time in ancient biomes, as well as in newly created environments, most notably cities. Together with my collaborators, I work on eco-evodevo of orchid flowers, fruits and peduncles, lantern flowers and dandelion pappus.

Keywords

Development, flowers, fruits, genomics, herbaria, orchids, plants, transcriptomics, urban evolution

Prof. Dr. Barbara Gravendeel

Researcher and group leader
Evolutionary Ecology

barbara.gravendeel@naturalis.nl
+31 (0)6  106 64 277

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Research
interest

Evolution and ecology are intimately related. Research over the last decades has shown that evolutionary changes are taking place much more rapidly than previously thought, and contribute to the ecological adaptation repertoire of species. Such adaptation mechanisms are of vital importance for species to survive in the anthropocene.

Human induced changes have become an important cause of plant evolution worldwide. More and more people live in cities nowadays and this has led to huge changes in environmental conditions and the spatial configuration of natural habitats in the landscape. Wild species are rapidly adapting to the urban biome. We investigate adaptations of urban plant species by studying museum specimens collected in areas that became increasingly urbanized over the past 200 years. We revisit these areas to recollect specimens and study traits differently selected for in urban versus non-urban environments with a suite of  micro-morphological and genetic tools.

Erycina pusilla
Cynorkis fastigiata and Epipactis helleborine

Current
topics

A selection of the topics I am working on currently.

En Tibi herbarium of tomato

Ancient tomato genomics

Past processes that shaped the current genetic diversity of the domesticated tomato are still largely unknown. Using Illumina HiSeq, we sequenced and compared full genomes from tomato accessions stored worldwide in genebanks and herbaria up to 182 years…
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Key
publications

  • Dirks-Mulder A., Ahmed I., uit het Broek M., Krol L., Menger N., Snier J., Winzum A. van, de Wolf A., van ‘t Wout M., Zeegers J.J., Butot R., Heijungs R., van Heuven B.J. van, Kruizinga J., Langelaan R., Smets E.F., Star W., Bemer M. Gravendeel B. 2019. Morphological and molecular characterization of orchid fruit development. Frontiers in Plant Science 10: 137. 
  • Bogarin D., Perez-Escobar O.A., Groenenberg D.S.J., Karremans A.P., Lemmon A.R., Moriarty-Lemmon E.M., Pupulin F., Smets E.F., Gravendeel B. 2018. Anchored hybrid enrichment generated nuclear, plastid and mitochondrial markers resolve the Lepathes horrida (Orchidaceae: Pleurothallidinae) species complex. Molecular Phylogenetics and Evolution 129: 27-47.
  • Dirks-Mulder, A., Butot, R., van Schaik, P., Wijnands, J.W.P.M., van den Berg, R., Krol, L., Doebar, S., van Kooperen, K., de Boer, H., Kramer, E.M., Smets, E.F., Vos, R.A., Vrijdaghs, A., Gravendeel, B. Exploring the evolutionary origin of floral organs of Erycina pusilla, an emerging orchid model system. 2017. BMC Evolutionary Biology 17: 89.
  • Merckx V.S.F.T., Hendriks K.P., Beentjes K.K., Mennes C.B., Becking L.E., Peijnenburg K.T.C.A., Afendy A., Arumugam N., de Boer H., Biun A., Buang M.M., Chen P.-P., Chung A.Y.C., Dow R., Feijen F.A.A., Feijen H., Feijen-van Soest C, Geml J., Geurts R., Gravendeel B., Hovenkamp P., Imbun P., Ipor I., Janssens S.B., Jocqué M. Kappes H., Khoo E., Koomen P., Lens F., Majapun R.J., Morgado L.N., Neupane S., Nieser N., Pereira J.T., Rahman H., Sabran S., Sawang A., Schwallier R.M., Shim P.-S., Smit H., Sol N., Spait M., Stech M., Stokvis F., Sugau J.B., Suleiman M., Sumail S., Thomas D.C., van Tol J., Tuh F.Y.Y., Yahya B.E., Nais J., Repin R., Lakim M. & Schilthuizen M. 2015. Evolution of endemism on a young tropical mountain. Nature 524: 347-350.
  • Ramirez, S.R., B. Gravendeel, R.B. Singer, C.R. Marshall & N.E. Pierce. 2007. Dating the origin of the Orchidaceae from a fossil orchid with its pollinator. Nature 448: 1042-1045.

PhD
supervision

Naturalis aims to be a breeding ground for international scientific talent. Therefore, PhD's and postdocs have a special position in our organisation.

    Postdocs:

    • Diego Bogarin
    • Annemarie Heiduk
    • Adam Karremans
    • Richa Kusuma Wati
    • Sarina Veldman

    PhDs:

    • Susanne Masters
    • Mehrdad Jahanbanifard
    • Dewi Pramanik
    • Nemi Dorst
    Cynorkis fastigiata and Epipactis helleborine

    Teaching
    activities

    I teach the following course at Radboud University:

    • Urban Evolution (NWI-BM090) elective course in Master Biology (3 EC)

    In the
    media

    Inaugural lecture 2022:  Towards climate adaptive urban jungles

    Pollennieuws 2021: Pollensoorten beter herkenbaar door dna-techniek

    Radboud Reflects 2021: https://www.ru.nl/.../21-10-04-wilde-plant-lezing.../

    Naturalis 200 year 2020: https://www.youtube.com/watch?v=Rt1gTPBUNmE

    Radboud University 2019: https://www.ru.nl/nieuws-agenda/nieuws/vm/2019/oktober/barbara-gravendeel-benoemd-bijzonder-hoogleraar/?fbclid=IwAR0F0aJaZH18LWZI9So1lRsCHfx_L_SMRUS_sVyq2PQmECw1ndx7h7ATzj4

    Parool mei 2018: Hoop op Hollandse hop via moleculaire veredeling

    Oncidiinae

    Publications

    2022

    Journals SCI, peer-reviewed

    Pramanik D., Spaans M., Kranenburg T., Bogarin D., Heijungs R., Lens F., Smets E., Gravendeel B. 2022. Inflorescence lignification of natural species and horticultural hybrids of Phalaenopsis orchids.. Scientia Horticulturae 295: 110845. DOI https://doi.org/10.1016/j.scienta.2021.110845
    Masters S., Anthoons B., Madesis P., Saroja S.G., Schermer M., Gerritsen W., Karahan A., Verdoes R., Schwallier R., Andel T. van, Boer H. de, Gravendeel B. 2022. Quantifying an online wildlife trade using a web crawler.. Biodiversity and Conservation 31: 855-869. DOI https://doi.org/10.1007/s10531-022-02367-z
    Claessens J., Aguiar A.F., Karsholt O., Bacallado J.J., Heijungs R., Gravendeel B. 2022. Pollination strategy of Gennaria diphylla (Orchidaceae) on the Canara Islands and on Madeira.. Mediterranean Botany 43: e73718. DOI https://doi.org/10.5209/mbot.73718
    Li C., Polling M., Cao L., Gravendeel B., Verbeek F.J. 2022. Analysis of Automatic Image Classification Methods for Urticaceae Pollen Classification.. Neurocomputing 522: 181-193. DOI https://doi.org/10.1016/j.neucom.2022.11.042
    Çiftçi O., Alverson A.J., Bodegom P. van, Roberts W.R., Mertens A., Vijver B. Van de, Trobajo R., Mann D.G., Pirovano W., Eijk I. van, Gravendeel B. 2022. Phylotranscriptomics reveals the reticulate evolutionary history of a widespread diatom species complex.. Journal of Phycology 58 (5) : 14 p. 643-656. DOI https://doi.org/10.1111/jpy.13281
    Polling M., Sin M., Weger L.A. de, Speksnijder A.G.C.L., Koenders M.J.F., Boer H. de, Gravendeel B. 2022. DNA metabarcoding using nrITS2 provides highly qualitative and quantitative results for airborne pollen monitoring.. Science of the Total Environment 806: 150468. DOI https://doi.org/10.1016/j.scitotenv.2021.150468
    2021

    Journals SCI, peer-reviewed

    Pérez‐Escobar O.A., Dodsworth S., Bogarín D., Bellot S., Balbuena J.A., Schley R.J., Kikuchi I.A., Morris S.K., Epitawalage N., Cowan R., Maurin O., Zuntini A., Arias T., Serna‐Sánchez A., Gravendeel B., Jiménez M.F.T., Nargar K., Chomicki G., Chase M.W., Leitch I.J., Forest F., Baker W.J. 2021. Hundreds of nuclear and plastid loci yield novel insights into orchid relationships.. American Journal of Botany 108 (7) : 1166-1180. DOI https://doi.org/10.1002/ajb2.1702
    Hedrén M., Birkedal S., Boer H. de, Ghorbani A., Gravendeel B., Hansson S., Svensson, Å., Zarre S. 2021. Asymmetric contributions of seed and pollen to gene dispersal in the marsh orchid Dactylorhiza umbrosa in Asia Minor. Molecular Ecology 30 (8) : 15 p. 1791-1805. DOI https://doi.org/10.1111/mec.15848
    Viruel J., Kantar M.B., Gargiulo R., Hesketh-Prichard P., Leong N., Cockel C., Forest F., Gravendeel B., Perez-Barrales R., Leitch I.J., Wilkin P. 2021. Crop wild phylorelatives (CWPs): phylogenetic distance, cytogenetic compatibility and breeding system data enable estimation of crop wild relative gene pool classification. Botanical Journal of the Linnean Society 195 (1) : 1-33. DOI https://doi.org/10.1093/botlinnean/boaa064
    Horn I.R., Shuman A., Chan I., Maliepaard C.H., Kootker L.M., Eurlings M., Bakker R., Gravendeel B., Cavallo C. 2021. Lynx presence in Roman times in the lower germanic Limes region: The case of Alphen aan den Rijn.. Journal of Archaeological Science Reports 36: 102835. DOI https://doi.org/10.1016/j.jasrep.2021.102835
    Chase M.W., Gravendeel B., Sulistyo B.P., Wati R.K., Schuiteman A. 2021. Expansion of the orchid genus Coelogyne (Arethuseae; Epidendroideae) to include Bracisepalum, Bulleyia, Chelonistele, Dendrochilum, Dickasonia, Entomophobia, Geesinkorchis, Gynoglottis, Ischnogyne, Nabaluia, Neogyna, Otochilus, Panisea and Pholidota.. Phytotaxa 510 (2) : 94-134. DOI https://doi.org/10.11646/PHYTOTAXA.510.2.1
    Hedrén M., Birkedal S., Boer H. de, Ghorbani A., Gravendeel B., Hansson S., Svensson A., Zarre S. 2021. Asymmetric contributions of seed and pollen to gene dispersal in the marsh orchid Dactylorhiza umbrosa in Asia Minor.. Molecular Ecology 30 (8) : 1791-1805. DOI https://doi.org/10.1111/mec.15848
    Wati R.K., Graaf E.F. de, Bogarín D., Heijungs R., Vugt R. van, Smets E.F., Gravendeel B. 2021. Antimicrobial Activity of Necklace Orchids is Phylogenetically Clustered and can be Predicted With a Biological Response Method.. Frontiers in Pharmacology 11: 586345. DOI https://doi.org/10.3389/fphar.2020.586345
    Polling M., Li C., Cao L., Verbeek F., Weger L.A. de, Belmonte J., Linares C.D., Willemse J., Boer H. de, Gravendeel B. 2021. Neural networks for increased accuracy of allergenic pollen monitoring.. Scientific Reports 11 (1) : 11357. DOI https://doi.org/10.1038/s41598-021-90433-x
    Vijverberg K., Welten M., Kraaij M., Heuven B.J. van, Smets E., Gravendeel B. 2021. Sepal Identity of the Pappus and Floral Organ Development in the Common Dandelion (Taraxacum officinale; Asteraceae).. Plants 10 (8) : 1682. DOI https://doi.org/10.3390/plants10081682
    Pérez-Escobar O.A., Bellot S., Przelomska N.A.S., Flowers J.M., Nesbitt M., Ryan P., Gutaker R.M., Gros-Balthazard M., Wells T., Kuhnhäuser B.G., Schley R., Bogarín D., Dodsworth S., Diaz R., Lehmann M., Petoe P., Eiserhardt W.L., Preick M., Hofreiter M., Hajdas I., Purugganan M., Antonelli A., Gravendeel B., Leitch I.J., Jimenez M.F.T., Papadopulos A.S.T., Chomicki G., Renner S.S., Baker W.J. 2021. Molecular Clocks and Archeogenomics of a Late Period Egyptian Date Palm Leaf Reveal Introgression from Wild Relatives and Add Timestamps on the Domestication.. Molecular Biology and Evolution 38 (10) : 4475-4492. DOI https://doi.org/10.1093/molbev/msab188
    Polling M., Schure A.T.M. ter, Geel B. van, Bokhoven T. van, Boessenkool S., MacKay G., Langeveld B.W., Ariza M., Plicht H. van der, Protopopov A.V., Tikhonov A., Boer H. de, Gravendeel B. 2021. Multiproxy analysis of permafrost preserved faeces provides an unprecedented insight into the diets and habitats of extinct and extant megafauna.. Quaternary Science Reviews 267: 107084. DOI https://doi.org/10.1016/j.quascirev.2021.107084
    2020

    Journals SCI, peer-reviewed

    Veldman S., Ju Y., Otieno J.N., Abihudi S., Posthouwer C., Gravendeel B., Andel T.R. van, Boer H.J. de. 2020. DNA barcoding augments conventional methods for identification of medicinal plant species traded at Tanzanian markets. Journal of Ethnopharmacology 250 DOI https://doi.org/10.1016/j.jep.2019.112495
    Bochove K. van, Bakker F.T., Beentjes K.K., Hemerik L., Vos R.A., Gravendeel B. 2020. Organic matter reduces the amount of detectable environmental DNA in freshwater. Ecology and Evolution 10 (8) : 3647-3654. DOI https://doi.org/10.1002/ece3.6123
    Schwallier R., Wely V. van, Baak M., Vos R., Heuven B.J. van, Smets E.F., Vugt R.R. van, Gravendeel B. 2020. Ontogeny and anatomy of the dimorphic pitchers of Nepenthes rafflesiana Jack. Plants 9 (11) : 1603. DOI https://doi.org/10.3390/plants9111603
    Heiduk A., Pramanik D., Spaans M., Gast L., Dorst N., Heuven B.J. van, Gravendeel B. 2020. Pitfall flower development and organ identity of Ceropegia sandersonii (Apocynaceae-Asclepiadoideae). Plants 9 (12) : 1767. DOI https://doi.org/10.3390/plants9121767
    Pramanik D., Dorst N., Meesters N., Spaans M., Smets E.F., Welten M., Gravendeel B. 2020. Evolution and development of three highly specialized floral structures of bee-pollinated Phalaenopsis species. EvoDevo 11: 20 p. 16. DOI https://doi.org/10.1186/s13227-020-00160-z
    Masters S., Andel T. van, Boer H.J. de, Heijungs R., Gravendeel B. 2020. Patent analysis as a novel method for exploring commercial interest in wild harvested species. Biological Conservation 243: 108454. DOI https://doi.org/10.1016/j.biocon.2020.108454
    Pedersen H.A., Petersen G., Gravendeel B., Barkman T.J., Boer H.J. de, Sulistyo B.P., Seberg O. 2020. Phylogenetics of Dendrochilum (Orchidaceae): evidence of pronounced morphological homoplasy and predominantly centric endemism. Taxon 68 (6) : 1173-1183. DOI https://doi.org/10.1002/tax.12184
    2019

    Journals SCI, peer-reviewed

    Dirks-Mulder A., Ahmed I., Broek M. uit het, Krol L., Menger N., Snier J., Winzum A. van, Wolf A. de, Wout M. van 't, Zeegers J.J., Butot R., Heijungs R., Heuven B.J., Kruizinga J., Langelaan R., Smets E.F., Star W., Bemer M., Gravendeel B. 2019. Morphological and Molecular Characterization of Orchid Fruit Development. Frontiers in Plant Science 10: 137. DOI https://doi.org/10.3389/fpls.2019.00137
    Viruel J., Conejero M., Hidalgo O., Pokorny L., Powell R.F., Forest F., Kantar M.B., Soto Gomez M., Graham S.W., Gravendeel B.,Wilkin P., Leitch I.J. 2019. A target capture-based method to estimate ploidy from herbarium specimens. Frontiers in Plant Science 10: 937. DOI https://doi.org/10.3389/fpls.2019.00937
    Bogarin D., Perez-Escobar O., Karremans A.P., Fernandez M., Kruizinga J., Pupulin F., Smets E.F., Gravendeel B. 2019. Phylogenetic comparative methods improve the selection of characters for generic delimitations in a hyperdiverse Neotropical orchid clade. Scientific Reports 9: 15098. DOI https://doi.org/10.1038/s41598-019-51360-0
    Claessens J., Bacallado J.J., Bogarin D., Dedroog L., Heijungs R., Langelaan R., Nieukerken E.J. van, Berg, K. van den, Gravendeel B. 2019. Pollination of Habenaria tridactylites on the Canary Islands. Nordic Journal of Botany 37 (8) : e02401.
    2018

    Journals SCI, peer-reviewed

    Veldman S., Kim S.J., Andel T. van, Bello Font M., Bone R., Bytebier B., Chuba D., Gravendeel B., Martos F., Mpatwa G., Ngugi G., Vinya R., Wightman N., Yokoya K., Boer H.J. de 2018. Trade in Zambian Edible Orchids - DNA Barcoding Reveals the Use of Unexpected Orchid Taxa for Chikanda. Genes 9 (12) : 595. DOI https://doi.org/10.3390/genes9120595
    Naive M.A., Gravendeel B. 2018. First wild record of Dendrochilum warrenii (Orchidaceae; Epidendroideae) confirms a Philippine provenance. Lankesteriana 18 (3) : 207-210. DOI https://doi.org/10.15517/lank.v18i3.35249
    Kusuma Wati R., Vugt R.R. van, Gravendeel B. 2018. A Linnaeus NG interactive key to the species of Glomera (Orchidaceae, Coelogyninae) from Southeast Asia. PhytoKeys (110) : 9-22. DOI https://doi.org/10.3897/phytokeys.110.28435
    Bogarín D., Perez-Escobar O.A., Groenenberg D., Holland S.D., Karremans A.P., Lemmon E.M., Lemmon A.R., Pupulin F., Smets E., Gravendeel B. 2018. Anchored hybrid enrichment generated nuclear, plastid and mitochondrial markers resolve the Lepanthes horrida (Orchidaceae: Pleurothallidinae) species complex. Molecular Phylogenetics and Evolution 129: 27-47. DOI https://doi.org/10.1016/j.ympev.2018.07.014
    Bogarin D., Fernandez M., Borkent A., Heemskerk A., Pupulin A., Ramirez S., Smets E.F., Gravendeel B. 2018. Pollination of Trichosalpinx (Orchidaceae: Pleurothallidinae) by biting midges (Diptera: Ceratopogonidae). Botanical Journal of the Linnean Society 186 (4) : 510-543. DOI https://doi.org/10.1093/botlinnean/box087
    Langeveld B.W., Mol D., Zazula G.D., Gravendeel B., Eurlings M., McMichael C.N.H., Groenenberg D., Reenen G.B.A. van, Palmeira M., Vogel J., Geel B. van 2018. A multidisciplinary study of a late Pleistocene arctic ground squirrel (Urocitellus parryii) midden from Yukon, Canada. Quaternary Research 89 (1) : 333-351. DOI https://doi.org/10.1017/qua.2017.93
    Lee Y.I., Yap J.W., Shairul I., Leitch I.J., Fay M.F., Lee Y.C., Hidalgo O., Dodsworth S., Smulders M.J.M., Gravendeel B., Leitch A.R. 2018. Satellite DNA in Paphiopedilum subgenus Parvisepalum as revealed by high-throughput sequencing and fluorescent in situ hybridization. BMC Genomics 19: 578. DOI https://doi.org/10.1186/s12864-018-4956-7
    2017

    Journals non-SCI, peer-reviewed

    Gravendeel B., Noort F. van, Vugt R. van 2017. Duurzame productie van salep. Orchideeën 79 (4) : 90-92.

    Journals SCI, peer-reviewed

    Dirks-Mulder A., Butot R., Schaik P. van, Wijnands J.W.P.M., Berg R. van den, Krol L., Doebar S., Kooperen K. van, Boer H. de, Kramer E.M., Smets E.F., Vos R.A., Vrijdaghs A., Gravendeel B. 2017. Exploring the evolutionary origin of floral organs of Erycina pusilla, an emerging orchid model system. BMC Evolutionary Biology 17: 89. DOI https://doi.org/10.1186/s12862-017-0938-7
    Schiebold J.M.I., Bidartondo M.I., Karasch P., Gravendeel B., Gebauer G. 2017. You are what you get from your fungi: nitrogen stable isotope patterns in Epipactis species. Annals of Botany 119 (7) : 1085-1095. DOI https://doi.org/10.1093/aob/mcw265
    Ghorbani A., Gravendeel B., Selliah S., Zarre S., Boer, H. de 2017. DNA barcoding of tuberous Orchidoideae: a resource for identification of orchids used in Salep. Molecular Ecology Resources 17 (2) : 342-352.
    Schwallier R., Gravendeel B., de Boer H., van Heuven B.J., Sieder A., Sumail S., van Vugt R., Nylinder S., Lens F. 2017. Evolution of wood anatomical characters in Nepenthes and close relatives of Caryophyllales. Annals of Botany 119: 1179-1193. DOI https://doi.org/10.1093/aob/mcx010
    Veldman S., Gravendeel B., Otieno J.N., Lammers Y., Duijm E., Nieman A., Bytebier A., Ngugi G., Martos F., Andel T. van, Boer H.J. de 2017. High-throughput sequencing of African orchid cake highlights conservation challenges in orchids. Biodiversity and Conservation 26: 2029-2046. DOI https://doi.org/10.1007/s10531-017-1343-7
    Scopece G., Gravendeel B., Cozzolino S. 2017. The effect of different chiral morphs on visitation rates and fruit set in the orchid Spiranthes spiralis. Plant Ecology & Diversity 10: 97-104. DOI https://doi.org/10.1080/17550874.2017.1354093
    Boer H.J. de, Ghorbani A., Manzanilla V., Raclariu A.C., Kreziou A., Ounjai S., Osathanunkul M., Gravendeel B. 2017. DNA metabarcoding of orchid-derived products reveals widespread illegal orchid trade. Proceedings of the Royal Society B: Biological Sciences 284 (1863)
    2016

    Journals non-SCI, peer-reviewed

    Claessens J., Ulenberg S., Gravendeel B. 2016. Torymus arcticus (Torymidae), ein neuer Bestäuber für Chamorchis alpina. Journal Europaischer Orchideen 48 (1) : 3-10.
    Gravendeel B., Schilthuizen M. 2016. Inheemse insecten hebben aanval op Bospest ingezet. De Levende Natuur 117 (5) : 208-209.
    Gravendeel, B. 2016. Nieuwe schroeforchissen in Nederland en Belgie. De Levende Natuur 117 (5) : 203-206.
    Bogarín D., Pupulin F., Smets E., Gravendeel B. 2016. Evolutionary diversification and historical biogeography of the Orchidaceae in Central America with emphasis on Costa Rica and Panama. Lankesteriana 16 (2) : 189-200. DOI https://doi.org/10.15517/lank.v16i2.26005

    Journals SCI, peer-reviewed

    Karremans A.P., Albertazzi F.J., Bakker F.J., Bogarin D., Eurlings M.C.M., Pridgeon A., Pupulin F., Gravendeel B. 2016. Phylogenetic reassessment of Specklinia and its allied genera in the Pleurothallidinae (Orchidaceae). Phytotaxa 272 (1) : 1-36. DOI https://doi.org/10.11646/phytotaxa.272.1.1
    Bakker F.T., Lei D., Yu J., Mohammadin S., Wei Z., van de Kerke S., Gravendeel B., Niewenhuis M., Staats M., Alguezar-Planas D.E., Holmer R. 2016. Herbarium genomics: plastome sequence assembly from a range of herbarium specimens using an Interactive Organelle Genome Assembly (IOGA) pipeline. Biological Journal of the Linnean Society 117: 33-43. DOI https://doi.org/10.1111/bij.12642
    Staats M., Arulandu A.J., Gravendeel B., Holst-Jensen A., Scholtens I., Peelen T., Prins T.W., Kok E. 2016. Advances in DNA metabarcoding for food and wildlife forensic species identification. Analytical and Bioanalytical Chemistry 408 (17) : 4615-4630. DOI https://doi.org/10.1007/s00216-016-9595-8
    Horn I.R., Rijn M. van, Zwetsloot T.J.J., Basmagi S., Dirks-Mulder A., Leeuwen W.B. van, Ravensberg W.J., Gravendeel B. 2016. Development of a multiplex Q-PCR to detect Trichoderma harzianum Rifai strain T22 in plant roots. Journal of Microbiological Methods 121: 44-49. DOI https://doi.org/10.1016/j.mimet.2015.12.014
    Schilthuizen M., Santos Pimenta L.P., Lammers Y., Steenbergen P.J., Flohil M., Beveridge N.G.P., Duijn, P.T. van, Meulblok M.M., Sosef N., Ven R. van de, Werring R., Beentjes K.K., Meijer K., Vos R.A., Vrieling K., Gravendeel B., Choi Y., Verpoorte R., Smit C., Beukeboom L.B. 2016. Incorporation of an invasive plant into a native insect herbivore food web. PeerJ 4: e1954. DOI https://doi.org/10.7717/peerj.1954
    Schwallier R., Raes N., de Boer H.J., Vos R.A., van Vugt R., Gravendeel B. 2016. Phylogenetic analysis of niche divergence reveals distinct evolutionary histories and climate change implications for tropical carnivorous pitcher plants. Diversity and Distributions 22 (1) : 97-110. DOI https://doi.org/10.1111/ddi.12382
    Haarsma A.J., Siepel H., Gravendeel B. 2016. Added value of metabarcoding combined with microscopy for evolutionary studies of mammals. Zoologica Scripta 45: 37-49. DOI https://doi.org/10.1111/zsc.12214
    2015

    Journals non-SCI, peer-reviewed

    Claessens J., Beentjes K.K., Heijerman T., Miller J., Gravendeel, B. 2015. Beobachtungen von Miarus campanulae als Bestäuber von Cephalanthera rubra. Journal Europaischer Orchideen 47: 11 p. 77-87.

    Journals SCI, peer-reviewed

    Karremans A.P., Bogarin D., Gravendeel B. 2015. Specklinia lugduno-batavae (Orchidaceae), a new species in the S. digitalis group. Blumea: Journal of Plant Taxonomy and Plant Geography 59: 180-184. DOI https://doi.org/10.3767/000651915X687859
    De Boer H.J., Cross H.B., de Wilde W.J.J.O., Duyfjes-de Wilde B.E.E. & Gravendeel B. 2015. Molecular phylogenetic analyses of Cucurbitaceae tribe Benincaseae urge for merging of Pilogyne with Zehneria. Phytotaxa 236 (2) : 173-183.
    Kok E.T., Jong M.J., Gravendeel B., van Leeuwen W.B., Baars E.W. 2015 2015. Resistance of Antibiotics and Antifungal Medicinal Products: Can Complementary and Alternative Medicine Help Solve the Problem in Common Infection Diseases? The introduction of a Dutch Research Consortium. Evidence-Based Complementary and Alternative Medicine: ID 52158.
    Karremans A.P., Bogarin D., Pupulin F., Luer C.A., Gravendeel B. 2015. The glandulous Specklinia: morphological convergence versus phylogenetic divergence. Phytotaxa 218 (2) : 101-127. DOI https://doi.org/10.11646/phytotaxa.218.2.1
    Merckx V.S.F.T., Hendriks K.P., Beentjes K.K., Mennes C.B., Becking L.E., Peijnenburg K.T.C.A., Afendy A., Arumugam N., de Boer H., Biun A., Buang M.M., Chen P.-P., Chung A.Y.C., Dow R., Feijen F.A.A., Feijen H., Feijen-van Soest C, Geml J., Geurts R., Gravendeel B., Hovenkamp P., Imbun P., Ipor I., Janssens S.B., Jocqué M. Kappes H., Khoo E., Koomen P., Lens F., Majapun R.J., Morgado L.N., Neupane S., Nieser N., Pereira J.T., Rahman H., Sabran S., Sawang A., Schwallier R.M., Shim P.-S., Smit H., Sol N., Spait M., Stech M., Stokvis F., Sugau J.B., Suleiman M., Sumail S., Thomas D.C., van Tol J., Tuh F.Y.Y., Yahya B.E., Nais J., Repin R., Lakim M. & Schilthuizen M. 2015. Evolution of endemism on a young tropical mountain. Nature 524 (7565) : 347-350. DOI https://doi.org/10.1038/nature14949
    Kreziou A., Boer H. de, Gravendeel B. 2015. Harvesting of salep orchids in north-western Greece continues to threaten natural populations. Oryx 49 (3) : 1-4. DOI https://doi.org/10.1017/S0030605315000265
    Karremans A.P., Pupulin F., Gravendeel B. 2015. Specklinia dunstervillei, a new species long confused with Specklinia endotrachys (Orchidaceae: Pleurothallidinae). PLOS ONE 10 (7) : e0131971.
    Schwallier R., Boer H.J. de, Visser N., Vugt R.R. van, Gravendeel B. 2015. Traps as treats: a traditional sticky rice snack persisting in rapidly changing Asian kitchens. Journal of Ethnobiology and Ethnomedicine 11 (24) : 1-9. DOI https://doi.org/10.1186/s13002-015-0010-x
    Sulistyo B.P., Boos R., Cootes J.E., Gravendeel B. 2015. Dendrochilum hampelii (Coelogyninae, Epidendroideae, Orchidaceae) traded as ‘Big Pink’ is a new species, not a hybrid: evidence from nrITS, matK and ycf1 sequence data. PhytoKeys 56: 83-97. DOI https://doi.org/10.3897/phytokeys.56.5432
    Karremans A.P., Pupulin F., Grimaldi D., Beentjes K.K., Butôt R., Fazzi G.E., Kaspers K., Kruizinga J., Roessingh P., Smets E.F., Gravendeel B. 2015. Pollination of Specklinia by nectar-feeding Drosophila: the first reported case of a deceptive syndrome employing aggregation pheromones in Orchidaceae. Annals of Botany 116 (3) : 437-455. Oxford University Press. DOI https://doi.org/10.1093/aob/mcv086
    2014

    Chapters in book

    Gravendeel B., Gischer F., Schmidt E.S., Sieder A., Vugt R.R. van, Vermeulen J. 2014. Bulbophyllinae.
    Gravendeel B., Fischer G., Camargo Smidt E.S. de, Sieder A., Vugt R.R. van, Vermeulen J.J. 2014. Dendrobieae: 621. Bulbophyllum. Genera Orchidacearum. 6 ISBN 9780199646517.
    Veldman S., Otieno J., Gravendeel B., Andel T. van, Boer H. de 2014. Conservation of Endangered Wild Harvested Medicinal Plants: Use of DNA Barcoding. Novel Plant Bioresources: Applications in Food, Medicine and Cosmetics Wiley & Sons, London.

    Journals non-SCI, peer-reviewed

    Gravendeel B., Noordeloos M., Geml J. 2014. Nieuwe inzichten in de samenstelling van de paddestoelenflora in Kruipwilgstruweel dankzij DNA analyse. Holland’s Duinen 64: 22-25.
    Ervynck A., Strydonck M. van, Boudin M., Gravendeel B., Randi E., Fabbri E., Caniglia R., Ottoni C., Thieren E., Vuyst W. de, Lievois D., Neer W. van 2014. De poot van de wolf aan de poort van het Steen (deel 2). Radiokoolstofdatering en genetisch onderzoek van een historisch curiosum. Handelingen der Maatschappij voor Geschiedenis & Oudheidkunde 68: 3-11.
    Weeda E.J., Bijlsma R.J., Gravendeel B. 2014. Wat voor oerwoud was het Beekbergerwoud. Nieuwe Veluwe 3: 28-30.
    Ghorbani A., Gravendeel B., Zarre S., Boer H. de 2014. Illegal wild collection and international trade of CITES-listed terrestrial orchid tubers in Iran. Traffic Bulletin 26 (2) : 18-24.
    Veldman S., Otieno J., Andel T.R. van, Gravendeel B., Boer H.J. de 2014. Efforts urged to tackle thriving illegal orchid trade in Tanzania and Zambia for chikanda production. Traffic Bulletin 26 (2) : 4 p. 47-50.

    Journals SCI, peer-reviewed

    Lammers Y., Peelen T., Vos R.A., Gravendeel B. 2014. The HTS barcode checker pipeline, a tool for automated detection of illegally traded species from high-throughput sequencing data. BMC Bioinformatics 15 (44) : 44. DOI https://doi.org/10.1186/1471-2105-15-44
    Geml J., Gravendeel B., Neilen M., Lammers Y., Raes N., Semenova T.A., Noordeloos M.E. 2014. The Contribution of DNA Metabarcoding to Fungal Conservation: Diversity Assessment, Habitat Partitioning and Mapping Red-Listed Fungi in Protected Coastal Salix repens Communities in the Netherlands. PLOS ONE 9 (6) : e99852. DOI https://doi.org/10.1371/journal.pone.0099852
    Gravendeel B., Protopopov A., Bull I., Duijm E., Gill F., Nieman A., Rudaya N., Tikhonov A.N., Trofimova S., Reenen G.B.A. van, Vos R., Zhilich., Geel B. van 2014. Multiproxy study of the last meal of a mid-Holocene Oyogos Yar horse, Sakha Republic, Russia. Holocene 24 (9) : 1-9. DOI https://doi.org/10.1177/0959683614540953
    Ghorbani A., Gravendeel B., Naghibi F., Boer H.J. de 2014. Wild orchid tuber collection in Iran: a wake-up call for conservation. Biodiversity and Conservation 23 (11) : 2749-2760. Springer. DOI https://doi.org/10.1007/s10531-014-0746-y
    Welker F., Duijm E., Gaag K. van der, Geel B. van, Knijff P. de, Leeuwen J. van, Mol D., Plicht J. van der, Raes N., Reumer J., Gravendeel B. 2014. Analysis of coprolites from the extinct mountain goat Myotragus balearicus. Quaternary Research 81 (1) : 11 p. 106-116. DOI https://doi.org/10.1016/j.yqres.2013.10.006
    Geel B. van, Protopopov A., Bull I., Duijm E., Gill F., Nieman A., Rudaya N., Trofimova S., Tikhonov A., Vos R.A., Zhilich S., Gravendeel B. 2014. Multiproxy diet analysis of the last meal of an early Holocene Yakutian Bison. Journal of Quaternary Science 29 (3) : 261-268. DOI https://doi.org/10.1002/jqs.2698
    Aflitos S., Schijlen E., Finkers R., Smit S., Wang J., Zhang G., Li N., Mao L., Jong H. de, Bakker F., Gravendeel B., Breit T., Dirks R., Huits H., Struss D., Swanson-Wagner R., Leeuwen H. van, Ham R.C.H.J. van, Fito L., Guignier L., Sevilla M., Ellul P., Ganko E., Kapur A., Reclus E., Geus B. de, Geest H. van de, Lintel Hekkert B. te, Haarst J. van, Smits L., Koops A., Sanchez-Perez G., Heusden A.W. van, Visser R., Quan Z., Min J., Liao L., Wang X., Wang G., Yue Z., Yang X., Xu N., Schranz E., Smets E., Vos R.A., Rauwerda J., Ursem R., Schuit C., Kerns M., Berg J. van den, Vriezen W., Janssen A., Jahrmann T., Moquet F., Bonnet J., Peters S. 2014. Exploring genetic variation in the tomato (Solanum section Lycopersicon) clade by whole-genome sequencing. Plant Journal 80 (1) : 136-148. DOI https://doi.org/10.1111/tpj.12616
    2013

    Journals SCI, peer-reviewed

    Gathier G., Peelen T., Vugt R.R. van, Niet T. van der, Gravendeel B. 2013. Forensic identification of CITES protected slimming Cactus (Hoodia gordonii) in traditional African Medicines (TAMs) using DNA barcoding. Journal of Forensic Sciences 58 (6) : 1467-1471. DOI https://doi.org/10.1111/1556-4029.12184
    Subedi A., Kunwar B., Choi Y., Dai Y., Andel T. van, Chaudhary R.P., Boer H.J. de, Gravendeel B. 2013. Collection and trade of wild-harvested orchids in Nepal. Journal of Ethnobiology and Ethnomedicine 9 (1) : 64. DOI https://doi.org/10.1186/1746-4269-9-64
    Gravendeel B., Groot A. de, Kik M., Beentjes K.K., Bergman H., Caniglia R., Cremers H., Fabbri E., Groenenberg D., Grone A., Groot Bruinderink G., Font L., Hakhof J., Harms V., Jansman H., Janssen R., Lammertsma D., Laros I., Linnartz L., Marel D. van der, Mulder J.L., Mije S. van der, Nieman A.M., Nowak C., Randi E., Rijks M., Speksnijder A., Vonhof H.B. 2013. The first wolf found in the Netherlands in 150 years was the victim of a wildlife crime. Lutra 56 (2) : 17 p. 93-109.
    Welker F., Gravendeel B. 2013. Dung reveals goat's last days. Nature 503: 440.
    Bogarin D., Karremans A.P., Rincon R., Gravendeel B. 2013. A new Specklinia (Orchidaceae: Pleurothallidinae) from Costa Rica and Panama. Phytotaxa 115 (2) : 31-41.
    Hof K. van den, Marcussen T., Berg R.G. van den, Weeda E.J., Gravendeel B. 2013. Fenotypische plasticiteit en nomenclatuur van Melkviooltje (Viola stagnina - V. persicifolia nom.ambig. propos.). Gorteria: Tijdschrift voor de Floristiek 36: 60-84.
    2012

    Chapters in book

    Gravendeel B., Przybylowicz T. 2012. Bijen en orchideeen: waarom bedriegen zo slecht nog niet is.

    Journals SCI, peer-reviewed

    Pupulin F., Karremans A.P., Gravendeel B. 2012. A reconsideration of the empusellous species of Specklinia (Orchidaceae: Pleurothallidinae) in Costa Rica. Phytotaxa 63: 1-20.
    Schilthuizen M., Gravendeel B. 2012. Left-right asymmetry in plants and animals: a gold mine for research. Contributions to Zoology 81 (2) : 75-78.
    Przybylowicz T., Roessingh P., Groot A.T., Biesmeijer J.C., Oostermeijer J.G.B., Chittka L., Gravendeel B. 2012. Possible chemical mimicry of the European lady's slipper orchid (Cypripedium calceolus). Contributions to Zoology 81 (2) : 103-110.
    Sirichamorn Y., Adema F.A.C.B., Gravendeel B., Welzen P.C. van 2012. Phylogeny of palaeotropic Derris-like taxa (Fabaceae) based on chloroplast and nuclear DNA sequences shows reorganization of (infra)generic classifications is needed. American Journal of Botany 99 (11) : 16 p. 1793-1808. DOI https://doi.org/10.3732/ajb.1200390
    2011

    Journals SCI, peer-reviewed

    Geel B. van, Fisher D.C., Rountrey A.N., Arkel J. van, Duivenvoorden J.F., Nieman A.M., Reenen G.B.A. van, Tikhonov A.N., Buigues B., Gravendeel B. 2011. Palaeo-environmental and dietary analysis of intestinal contents of a mammoth calf (Yamal Peninsula, northwest Siberia). Quaternary Science Reviews 30 (2728) : 3935-3946. DOI https://doi.org/10.1016/j.quascirev.2011.10.009
    Geel B. van, Guthrie R.D., Altmann J.G., Broekens P., Bull I.D., Gill F.L., Jansen B., Nieman A.M., Gravendeel B. 2011. Mycological evidence of coprophagy from the feces of an Alaskan Late Glacial mammoth. Quaternary Science Reviews 30 (1718) : 2289-2303. DOI https://doi.org/10.1016/j.quascirev.2010.03.008
    Doorduin L., Gravendeel B., Lammers Y., Ariyurek Y., Chin-A-Woeng T., Vrieling K. 2011. The complete chloroplast genome of 17 individuals of pest species Jacobaea vulgaris: SNPs, microsatellites and barcoding markers for population and phylogenetic studies. DNA Research 18 (2) : 93-105. DOI https://doi.org/10.1093/dnares/dsr002
    Smidt E.C., Borba E.L., Gravendel B., Fischer G.A., Berg C. van den 2011. Molecular phylogeny of the Neotropical sections of Bulbophyllum (Orchidaceae) using nuclear and plastid spacers. Taxon 60 (4) : 1050-1064.
    2010

    Journals SCI, peer-reviewed

    Sedayu A., Eurlings M.C.M., Gravendeel B., Hetterscheid W.L.A. 2010. Morphological character evolution of Amorphophallus (Araceae) based on a combined phylogenetic analysis of trnL, rbcL, and LEAFY second intron sequences. Botanical Studies 51 (4) : 473-490.
    Eurlings M.C.M., Heuveling van Beek H., Gravendeel B. 2010. Polymorphic microsatellites for forensic identification of agarwood (Aquilaria crassna). Forensic Science International 197 (13) : 30-34. DOI https://doi.org/10.1016/j.forsciint.2009.12.017
    2008

    Journals non-SCI, peer-reviewed

    Gravendeel B. 2008. Fossiele bestuiver dateert orchideeënfamilie. Entomologische Berichten 68: 2-4.

    Journals SCI, peer-reviewed

    Hof K. van den, Berg R.G. van den, Gravendeel B. 2008. Chalcone synthase gene lineage diversification confirms allopolyploid evolutionary relationships of European rostrate violets. Molecular Biology and Evolution 25 (10) : 2099-2108. DOI https://doi.org/10.1093/molbev/msn157
    Kocyan A., Vogel E.F. de, Conti Elena, Gravendeel B. 2008. Molecular phylogeny of Aerides (Orchidaceae) based on one nuclear and two plastid markers: A step forward in understanding the evolution of the Aeridinae. Molecular Phylogenetics and Evolution 48 (2) : 422-443. DOI https://doi.org/10.1016/j.ympev.2008.02.017
    Geel B. van, Aptroot A., Baittinger C., Birks H.H., Bull I.D., Cross H.B., Evershed R.P., Gravendeel B., Kompanje E.J.O., Kuperus P., Mol D., Nierop K.G.J., Pals J.P., Tikhonov A.N., Reenen G. van, Tienderen P.H. van 2008. The ecological implications of a Yakutian mammoth's last meal. Quaternary Research 69 (3) : 361-376. DOI https://doi.org/10.1016/j.yqres.2008.02.004
    2007

    Journals non-SCI, peer-reviewed

    Gravendeel B. 2007. Fossiele bestuiver dateert orchideeënfamilie. Eurorchis 19 (1) : 16-19.
    Gravendeel B., Baas P., Smets E. 2007. Herbaria in Nederland: van blijvend belang voor het behoud van biodiversiteit. Gewina: Tijdschrift voor de Geschiedenis der Geneeskunde, Natuurwetenschappen, Wiskunde en Techniek 30 (3) : 153-161.

    Journals SCI, peer-reviewed

    Ramirez S.R., Gravendeel B., Singer R.B., Marshall C.R., Pierce N.E. 2007. Dating the origin of the Orchidaceae from a fossil orchid with its pollinator. Nature 448 (7157) : 1042-1045. DOI https://doi.org/10.1038/nature06039
    Fischer G.A., Gravendeel B., Sieder A., Andriantiana J., Heiselmayer P., Cribb P.J., Camargo Smidt E. de, Samuel R., Kiehn M. 2007. Evolution of resupination in malagasy species of Bulbophyllum (Orchidaceae). Molecular Phylogenetics and Evolution 45 (1) : 358-376. DOI https://doi.org/10.1016/j.ympev.2007.06.023
    2005

    Chapters in book

    Gravendeel B., Vogel E.F. de, Schuiteman A. 2005. Subtribe Coelogyninae. Genera Orchidacearum. 4 ISBN 0198507127.
    Gravendeel B., Mabberley D., Meijden R. van der 2005. Andere indeling plantenfamilies: nieuwe inzichten uit DNA-onderzoek. Heukels' Flora van Nederland ISBN 9789075000894.

    Books as editor

    Bakker F., Chatrou L.W., Gravendeel B. (eds.) 2005. Plant Species-level Systematics: New perspectives on pattern & process. Regnum Vegetabile: 348 p. ISBN 9783906166391.

    Journals SCI, peer-reviewed

    Hsu S.C., Gravendeel B., Vogel E.F. de 2005. Taxonomic revision of geesinkorchis (Coelogyninae; Epidendroideae; Orchidaceae). Blumea: Journal of Plant Taxonomy and Plant Geography 50 (3) : 505-517.
    Gravendeel B., Schuiteman A., Vogel E.F. de 2005. Molecular dating and vicariance analysis of Coelogyninae (Orchidaceae). Regnum Vegetabile 143: 131-148.
    Eurlings M.C.M., Gravendeel B. 2005. TrnL-trnF sequence data imply paraphyly of Aquilaria and Gyrinops (Thymelaeaceae) and provide new perspectives for agarwood identification. Plant Systematics and Evolution 254 (12) : 1-12. DOI https://doi.org/10.1007/s00606-005-0312-x
    2004

    Journals SCI, peer-reviewed

    Mols J.B., Gravendeel B., Chatrou L.W., Pirie M.D., Bygrave P.C., Chase M.W., Kessler P.J.A. 2004. Identifying clades in Asian Annonaceae: Monophyletic genera in the polyphyletic Miliuseae. American Journal of Botany 91 (4) : 590-600.
    Bakker H.C. den, Gravendeel B., Kuyper T.W. 2004. An ITS phylogeny of Leccinum and an analysis of the evolution of minisatellite-like sequences within ITS1. Mycologia 96 (1) : 102-118.
    Gravendeel B., Eurlings M.C.M., Berg C. van den, Cribb P.J. 2004. Phylogeny of Pleione (Orchidaceae) and parentage analysis of its wild hybrids based on plastid and nuclear ribosomal ITS sequences and morphological data. Systematic Botany 29 (1) : 50-63.
    Pelser P.B., Hof K. van den, Gravendeel B., Meijden R. van der 2004. The systematic value of morphological characters in Senecio sect. Jacobaea (Asteraceae) as compared to DNA sequences. Systematic Botany 29 (3) : 790-805.
    Grob G.B.J., Gravendeel B., Eurlings M.C.M. 2004. Potential phylogenetic utility of the nuclear FLORICAULA/LEAFY second intron: comparison with three chloroplast DNA regions in Amorphophallus (Araceae). Molecular Phylogenetics and Evolution 30 (1) : 13-23. DOI https://doi.org/10.1016/S1055-7903(03)00183-0
    Pedersen H.A., Gravendeel B., Mudiana D. 2004. Three new species of dendrochilum (Orchidaceae) and their phylogenetic positions according to plastid and nuclear ribosomal its sequences. Blumea: Journal of Plant Taxonomy and Plant Geography 49 (23) : 351-360.
    Gravendeel B., Smithson A., Slik J.W.F., Schuiteman A. 2004. Epiphytism and pollinator specialization: drivers for orchid diversity? Philosophical Transactions of the Royal Society B: Biological Sciences 359 (1450) : 1523-1535. DOI https://doi.org/10.1098/rstb.2004.1529
    2003

    Journals non-SCI, peer-reviewed

    Wilde W.J.J.O. de, Duyfjes B.E.E., Gravendeel B., Ham R.W.J.M. van der, Ho B.C., Rugayah, Vo G.T.P. 2003. Callitriche nana (Callitrichaceae), a new species from Java, Indonesia. Floribunda 2 (3) : 57-66.

    Journals SCI, peer-reviewed

    Pelser P.B., Gravendeel B., Meijden R. van der 2003. Phylogeny reconstruction in the gap between too little and too much divergence: the closest relatives of Senecio jacobaea (Asteraceae) according to DNA sequences and AFLPs. Molecular Phylogenetics and Evolution 29 (3) : 613-628. DOI https://doi.org/10.1016/S1055-7903(03)00139-8
    2002

    Chapters in book

    Gravendeel B., Vogel E.F. de 2002. Molecular phylogeny of Coelogyne: an urge to reorganize. The Genus Coelogyne ISBN 9838120480.

    Journals SCI, peer-reviewed

    Gravendeel B., Vogel E.F. de 2002. Revision of coelogyne section Moniliformes (Orchidaceae) based on morphology, plastid and nrDNA ITS sequences. Blumea: Journal of Plant Taxonomy and Plant Geography 47 (3) : 409-462.
    Pelser P.B., Gravendeel B., Meijden R. van der 2002. Tackling speciose genera: species composition and phylogenetic position of Senecio sect. Jacobaea (Asteraceae) based on plastid and nrDNA sequences. American Journal of Botany 89 (6) : 929-939.
    Grob G.B.J., Gravendeel B., Eurlings M.C.M., Hetterscheid W.L.A. 2002. Phylogeny of the tribe Thomsonieae (Araceae) based on chloroplast matK and trnL intron sequences. Systematic Botany 27 (3) : 453-467.
    2001

    Journals SCI, peer-reviewed

    Gravendeel B., Chase M.W., Vogel E.F. de, Roos M.C., Mes T.H.M., Bachmann K. 2001. Molecular phylogeny of Coelogyne (Epidendroideae; Orchidaceae) based on plastid RFLPS, matK, and nuclear ribosomal its sequences: Evidence for polyphyly. American Journal of Botany 88 (10) : 1915-1927.
    2000

    Books as author

    Gravendeel B. 2000. Reorganising the orchid genus Coelogyne - a phylogenetic classification based on molecules and morphology. Doctoral thesis: 208 p. Nationaal Herbarium Nederland, Leiden, The Netherlands. ISBN 9789071236488.

    Journals SCI, peer-reviewed

    Sierra S.E.C., Gravendeel B., Vogel E.F. de 2000. Revision of Coelogyne section Verrucosae (Orchidaceae): A new sectional delimitation based on morphological and molecular evidence. Blumea: Journal of Plant Taxonomy and Plant Geography 45 (2) : 275-318.
    Pelser P.B., Gravendeel B., Vogel E.F. de 2000. Revision of Coelogyne section Fuliginosae (Orchidaceae). Blumea: Journal of Plant Taxonomy and Plant Geography 45 (2) : 253-+.
    1999

    Journals SCI, peer-reviewed

    Gravendeel B., Vogel E.F. de 1999. Revision of Coelogyne section Speciosae (Orchidaceae). Blumea: Journal of Plant Taxonomy and Plant Geography 44 (2) : 253-320.
    1998

    Journals SCI, peer-reviewed

    Gravendeel B. 1998. Phylogeny of Coelogyne Lindl. (Orchidaceae) based on morphology and cpDNA RFLP data. Acta Botanica Neerlandica 47: 23-264.