Jean-Yves DUBUISSON

Research

Evolutionary botanist

Main questions and projects

•  Taxonomy & phylogeny of diverse studied plant models (see below)
•  Anatomy and morphology evolution in ferns
•  Diversity and history of epiphytism (with focus on ferns, especially Hymenophyllaceae ; projects on orchids in progress)
•  Diversity and history of flora of oceanic islands (with focus on Mascarenes and lesser Antilles)

Plant models (as the project leader (*) or as a collaborative contributor)

(*) Hymenophyllaceae (filmy ferns), collab. with S. Hennequin (UPMC ISYEB), G. Rouhan (MNHN ISYEB), F. Rakotondrainibe (MNHN ISYEB), A. Ebihara (Tokyo), H. Schneider (NHM), V. Deblauwe (ULB), B. Senterre (Seychelles), K. Pynee (Mauritius), Y. Robert & E. Grangaud (La Réunion)…

African angraecoid orchids, collab. with T. Stevart (MoBot), S. Verlynde (MoBot), V. Droissart (IRD, AMAP Montpellier) – co-supervision with T. Stevart of P. Descourvières’ thesis on Diaphananthe systematics.

Dombeyoideae (Malvaceae), collab. with T. Le Péchon (La Réunion), S. François (SPN, MNHN)

Eriocaulaceae (Poales), collab. with L. Echternacht (Ouro Preto, Brazil), P. Sano (USP, Brazil)

Thalloid liverworts (genera Riccia and Riccardia), collab. with C. Reeb (UPMC ISYEB) - co-supervision with C. Reeb of L. Rabeau’s thesis on Riccia systematics.

Palaeozoic ferns, collab. with J. Galtier (AMAP Montpellier), co-supervision with J. Galtier of A. Corvez’ thesis (defense in 2012)

Key-words, techniques

Phylogeny, systematics, morphology, anatomy, molecular methods, bio-statistics, comparative biology.

Main results

• Taxonomy and classification of Hymenophyllaceae.
  The last global revision of the family has been published in 2006 (6) as a result of an international collaborative work I have initiated in 1993.
  Many publications clarifying the main relationships within the family or focusing on some local taxa, especially in Mascarene archipelago (1, 3, 4, 5, 7, 11, 17, 21, 24, 25, 28). Revision in progress on Comorian, Malagasy, Seychellois and African species.
• Taxonomy and classification of African angraecoid orchids.
  Genus Bolusiella (18), new Rhipidoglossum species (19).
• Taxonomy, classification and history of Mascarene Dombeyoideae.
  From the T. Le Péchon’s thesis I have supervised and further related works (9, 12, 13, 20).
• Taxonomy and classification of Brazilian Eriocaulaceae.
  From the L. Echternacht’s thesis I have co-supervised and further related works (15, 23, 26).
• Evolution of epiphytism in ferns and especially in Hymenophyllaceae.
  A review on the subject (10) ; and by evidencing relationships between morphology and anatomy regression and colonial epiphytism (2, 14, 22).
• Origin and evolution of the megaphylly in Euphyllophytes and a focus on the fern megafrond.
  From the A. Corvez’ thesis I have co-supervised (16).

List of publications before 2014

Descourvières, P., Dubuisson, J.-Y., Droissart, V., Cribb, P., Cawoy, V., Simo-Droissart, M., Sonké, B., & Stévart, T. (2013). Rhipidoglossum montealenense (Orchidaceae), a new species from Equatorial Guinea and Cameroon. Plant Ecology and Evolution, 146(3), 389–394. https://doi.org/10.5091/plecevo.2013.841

Dubuisson, J.-Y., Bary, S., Ebihara, A., Carnero-Diaz, E., Boucheron-Dubuisson, E., & Hennequin, S. (2013). Epiphytism, anatomy and regressive evolution in trichomanoid filmy ferns (Hymenophyllaceae). Botanical Journal of the Linnean Society, 173(4), 573–593. https://doi.org/10.1111/boj.12106

Dubuisson, J.-Y., Rouhan, G., Grall, A., Hennequin, S., Senterre, B., Pynee, K., & Ebihara, A. (2013). New insights into the systematics and evolution of the filmy fern genus Crepidomanes (Hymenophyllaceae) in the Mascarene Archipelago with a focus on dwarf species. Acta Botanica Gallica - Botany Letters, 160(2), 173–194. https://doi.org/10.1080/12538078.2013.819294

Le Péchon, T., Pausé, J.-B., Dubuisson, J.-Y., Gigord, L. D. B., Haevermans, A., Haevermans, T., & Humeau, L. (2013). Dombeya formosa (Malvaceae s. l.): A New Species Endemic to La Réunion (Indian Ocean) Based on Morphological and Molecular Evidence. Systematic Botany, 38(2), 424–433. https://doi.org/10.1600/036364413X666732

Castro, Vitorino N., Motte, D., & Dubuisson, J.-Y. (2012). Cattleya ×itabapoanaensis (Orchidaceae), a new natural hybrid from Rio Janeiro State (Brazil). Phytotaxa, 50, 64–68.

Castro, Vitorino Neto, Motte, D., & Dubuisson, J.-Y. (2012). Cattleya ×itabapoanaensis (Orchidaceae), a new natural hybrid from Rio Janeiro State (Brazil). Phytotaxa, 50(December 2011), 64–68.

Pynee, K., Hennequin, S., Echternacht, L., & Dubuisson, J.-Y. (2012). A new local variety of Crepidomanes minutum (Hymenophyllaceae) in the Mascarene Archipelago (Indian Ocean) and a new record for Mauritius. Phytotaxa, 62, 25–30.

Reeb, C., Ranarijaona, H. L., & Dubuisson, J.-Y. (2012). Ecological survey of the Lycophytes and Ferns of the Vohimana Reserve, Madagascar. Plant Ecology and Evolution, 145(3), 410–418. https://doi.org/10.5091/plecevo.2012.516

Dubuisson, J.-Y., Hennequin, S., Bary, S., Ebihara, A., & Boucheron-Dubuisson, E. (2011). Anatomical diversity and regressive evolution in trichomanoid filmy ferns (Hymenophyllaceae): A phylogenetic approach. Comptes Rendus - Biologies, 334(12), 880–895. https://doi.org/10.1016/j.crvi.2011.07.009

Echternacht, L., Sano, P. T., Trovó, M., & Dubuisson, J.-Y. (2011). Phylogenetic analysis of the Brazilian microendemic Paepalanthus subgenus Xeractis (Eriocaulaceae) inferred from morphology. Botanical Journal of the Linnean Society, 167(2), 137–152. https://doi.org/10.1111/j.1095-8339.2011.01170.x

Hennequin, S., Ebihara, A., Dubuisson, J.-Y., & Schneider, H. (2010). Chromosome number evolution in Hymenophyllum (Hymenophyllaceae), with special reference to the subgenus Hymenophyllum. Molecular Phylogenetics and Evolution, 55(1), 47–59. https://doi.org/10.1016/j.ympev.2010.01.001

Le Péchon, T., Dubuisson, J.-Y., Haevermans, T., Cruaud, C., Couloux, A., & Gigord, L. D. B. (2010). Multiple colonizations from Madagascar and converged acquisition of dioecy in the Mascarene Dombeyoideae (Malvaceae) as inferred from chloroplast and nuclear DNA sequence analyses. Annals of Botany, 106(2), 343–357. https://doi.org/10.1093/aob/mcq116

Dubuisson, J.-Y., Schneider, H., & Hennequin, S. (2009). Epiphytism in ferns: diversity and history. Comptes Rendus - Biologies, 332(2‑3), 120–128. https://doi.org/10.1016/j.crvi.2008.08.018

Ebihara, A., Nitta, J. H., Lorence, D., & Dubuisson, J.-Y. (2009). New Records of Polyphlebium borbonicum, an African Filmy Fern, in the New World and Polynesia (Vol. 99). (3), 200–206 p.

Le Péchon, T., Cao, N., Dubuisson, J.-Y., & Gigord, L. D. B. (2009). Systematics of Dombeyoideae (Malvaceae) in the Mascarene archipelago (Indian Ocean) inferred from morphology. Taxon, 58(2), 519–531.

Hennequin, S., Schuettpelz, E., Pryer, K. M., Ebihara, A., & Dubuisson, J.-Y. (2008). Divergence Times and the Evolution of Epiphytism in Filmy Ferns (Hymenophyllaceae) Revisited. International Journal of Plant Sciences, 169(9), 1278–1287. https://doi.org/10.1086/591983

Hennequin, S., Schuettpelz, E., Pryer, K. M., Ebihara, A., & Dubuisson, J.-Y. (2008). Divergence Times and the Evolution of Epiphytism in Filmy Ferns (Hymenophyllaceae) Revisited. International Journal of Plant Sciences, 169(9), 1278–1287. https://doi.org/10.1086/591983

Ebihara, A., Dubuisson, J.-Y., Iwatsuki, K., & Ito, M. (2007). Systematics of Trichomanes (Hymenophyllaceae: Pteridophyta), progress and future interests. Fern Gazette, 18(2), 53–58.

Ebihara, A., Iwatsuki, K., Ito, M., Hennequin, S., & Dubuisson, J.-Y. (2007). A global molecular phylogeny of the fern genus Trichomanes (Hymenophyllaceae) with special reference to stem anatomy. Botanical Journal of the Linnean Society, 155(1), 1–27. https://doi.org/10.1111/j.1095-8339.2007.00684.x

Ebihara, A., Dubuisson, J.-Y., Iwatsuki, K., Hennequin, S., & Ito, M. (2006). A taxonomic revision of Hymenophyllaceae (Vol. 51). (2), 221–280 p.

Hennequin, S., Ebihara, A., Ito, M., Iwatsuki, K., & Dubuisson, J.-Y. (2006). New Insights into the Phylogeny of the Genus Hymenophyllum s.l. (Hymenophyllaceae): Revealing the Polyphyly of Mecodium. Systematic Botany, 31(2), 271–284. https://doi.org/10.1600/036364406777585775

Hennequin, S., Ebihara, A., Ito, M., Iwatsuki, K., & Dubuisson, J.-Y. (2006). Phylogenetic systematics and evolution of the genus Hymenophyllum (hymenophyllaceae: Pteridophyta). Fern Gazette, 17(5), 247–257.

Ebihara, A., Hennequin, S., Iwatsuki, K., Bostock, P. D., Matsumoto, S., Jaman, R., Dubuisson, J.-Y., & Ito, M. (2004). Polyphyletic origin of Microtrichomanes (Prantl) Copel. (Hymenophyllaceae), with a revision of the species. Taxon, 53(4), 935–948. https://doi.org/10.2307/4135561

Rouhan, G., Dubuisson, J.-Y., Rakotondrainibe, F., Motley, T. J., Mickel, J. T., Labat, J.-N., & Moran, R. C. (2004). Molecular phylogeny of the fern genus Elaphoglossum (Elaphoglossaceae) based on chloroplast non-coding DNA sequences: Contributions of species from the Indian Ocean area. Molecular Phylogenetics and Evolution, 33(3), 745–763. https://doi.org/10.1016/j.ympev.2004.08.006

Dubuisson, J.-Y., Hennequin, S., Douzery, E. J. P., Cranfill, R. B., Smith, A. R., & Pryer, K. M. (2003). rbcL phylogeny of the fern genus Trichomanes (Hymenophyllaceae), with special reference to neotropical taxa. International Journal of Plant Sciences, 164(5), 753–761. https://doi.org/10.1086/377059

Dubuisson, J.-Y., Hennequin, S., Rakotondrainibe, F., & Schneider, H. (2003). Ecological diversity and adaptive tendencies in the tropical fern Trichomanes L. (Hymenophyllaceae) with special reference to climbing and epiphytic habits. Botanical Journal of the Linnean Society, 142(1), 41–63. https://doi.org/10.1046/j.1095-8339.2003.00165.x

Hennequin, S., Ebihara, A., Ito, M., Iwatsuki, K., & Dubuisson, J.-Y. (2003). Molecular systematics of the fern genus Hymenophyllum s.l. (Hymenophyllaceae) based on chloroplastic coding and noncoding regions. Molecular Phylogenetics and Evolution, 27(2), 283–301. https://doi.org/10.1016/S1055-7903(02)00404-9

Raymundez, M. B., Mathez, J., De Enrech, N. X., & Dubuisson, J. Y. (2002). Coding of insertion-deletion events of the chloroplastic intergene atpB-rbcL for the phylogeny of the Valerianeae tribe (Valerianaceae). Comptes Rendus - Biologies, 325(2), 131–139. https://doi.org/10.1016/S1631-0691(02)01416-6

Raymúndez, M. B., Mathez, J., De Enrech, N. X., & Dubuisson, J.-Y. (2002). Coding of insertion-deletion events of the chloroplastic intergene atpβ-rbcL for the phylogeny of the Valerianeae tribe (Valerianaceae). Comptes Rendus - Biologies, 325(2), 131–139. https://doi.org/10.1016/S1631-0691(02)01416-6

Pryer, K. M., Smith, A. R., Hunt, J. S., & Dubuisson, J.-Y. (2001). rbcL data reveal two monophyletic groups of filmy ferns (Filicopsida: Hymenophyllaceae). American Journal of Botany, 88(6), 1118–1130. https://doi.org/10.2307/2657095

El Oualidi, J., Verneau, O., Puech, S., & Dubuisson, J.-Y. (1999). Utility of rDNA ITS sequences in the systematics of Teucrium section Polium (Lamiaceae). Plant Systematics and Evolution, 215(1‑4), 49–70. https://doi.org/10.1007/BF00984647

Dubuisson, J.-Y., Hébant-Mauri, R., & Galtier, J. (1998). Molecules and morphology: conflicts and congruence within the fern genus Trichomanes (Hymenophyllaceae). Molecular phylogenetics and evolution, 9(3), 390–397. https://doi.org/10.1006/mpev.1998.0505

Dubuisson, J.-Y. (1997). rbcL sequences: a promising tool for the molecular systematics of the fern genus Trichomanes (Hymenophyllaceae)? Molecular phylogenetics and evolution, 8(2), 128–138. https://doi.org/10.1006/mpev.1997.0414

Dubuisson, J.-Y. (1997). Systematic relationships within the genus Trichomanes sensu lato (Hymenophyllaceae, Filicopsida): cladistic analysis based on anatomical and morphological data. Botanical Journal of the Linnean Society, 123, 265–296. https://doi.org/10.1111/j.1095-8339.1997.tb01420.x