A new vanilla species from Costa Rica closely related to V. planifolia (Orchidaceae)
2017
Azofeifa-Bolaños, José B. | Gigant, Rodolphe | Nicolás-García, Mayra | Pignal, Marc | Tavares-González, Fabiola B. | Hágsater, Eric | Salazar-Chávez, Gerardo A. | Reyes-López, Delfino | Archila-Morales, Fredy L. | García-García, José A. | da Silva, Denis | Allibert, Agathe | Solano-Campos, Frank | Rodríguez-Jimenes, Guadalupe del Carmen | Paniagua-Vásquez, Amelia | Besse, Pascale | Pérez-Silva, Araceli | Grisoni, Michel | Universidad Nacional de Costa Rica | Peuplements végétaux et bioagresseurs en milieu tropical (UMR PVBMT) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Université de La Réunion (UR) | Instituto tecnologico de Tuxtepec | Institut de Systématique, Evolution, Biodiversité (ISYEB) ; Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE) ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) | Instituto Tecnologico de Veracruz | Herbario AMO Mexico | Universidad Autónoma Metropolitana [Mexico] (UAM) ; Universidad Autonoma Metropolitana, Unidad Cuajimalpa | Instituto de Biología, Universidad Nacional Autónoma de México ; Ciudad Universitaria México | Benemérita Universidad Autónoma de Puebla (BUAP) | Universidad de San Carlos de Guatemala (USAC) | Escuela de Ciencias Agrarias, Facultad de Ciencias de la Tierra y el Mar ; Universidad Nacional de Costa Rica | Département Systèmes Biologiques (Cirad-BIOS) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad) | The authors are grateful to the National Council for Scientific and Technological Research of Costa Rica (CONICIT) for the financial support to conduct the collecting missions in Costa Rica, and to the Distance Education University of Costa Rica (UNED) for supporting the MSc work of the first author. The molecular genotyping and phylogenetic analyses were partly funded by the Vanitax (ANR Bibliotheque du Vivant) and the VaBiome (EraNet-NetBiome) projects. | ANR-11-EBIM-0005,VaBiome,Caractérisation, Protection, Utilisation durable et Valorisation de la Biodiversité des Vanilliers dans les régions tropicales de l'UE(2011)
International audience
显示更多 [+] 显示较少 [-]英语. We describe a new vanilla species growing in sympatry with Vanilla planifolia Jacks. ex Andrews (Orchidaceae) in the province of Limón, Caribbean coast of Costa Rica. The morphology of the reproductive and vegetative organs observed on vines cultivated under shade-house, the nuclear (Internal Transcribed Spacer) and plastid (matK) nucleotide sequences, as well as the contents of aromatic compounds measured in ripe fruits, show that this species is close to but distinct from V. planifolia. The name V. sotoarenasii M.Pignal, Azofeifa-Bolaños & Grisoni sp. nov. is proposed for this new Vanilla species endemic in Costa Rica. It is especially distinguished from V. planifolia by a reduction of about 30% of the size of the fruits and flowers, by a divergence of ITS sequences for at least two species-conserved nucleotides compared to seven other species of the V. planifolia group, and by the presence of anisic compounds and low content of phenolic compounds (including vanillin) in the fruits. These results confirmed the extension of the area of distribution of V. planifolia southward to Costa Rica, where a recent speciation process occurred. Because of its particular agronomic and aromatic properties, V. sotoarenasii sp. nov. could represent a valuable biological resource for the vanilla industry.
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