The origin and speciation of orchids
artículo original
Fecha
2024Autor
Pérez Escobar, Oscar Alejandro
Bogarín Chaves, Diego Gerardo
Przelomska, Natalia A.S.
Ackerman, James D.
Balbuena, Juan A.
Bellot, Sidonie
Bühlmann, Roland P.
Cabrera, Betsaida
Aguilar Cano, José
Charitonidou, Martha
Chomicki, Guillaume
Clements, Mark A.
Cribb, Phillip
Fernández Campos, Melania
Flanagan, Nicola S.
Gravendeel, Barbara
Hágsater, Eric
Halley, John M.
Hu, Ai-Qun
Jaramillo Muñoz, Carlos Alberto
Mauad, Anna Victoria
Maurin, Olivier
Müntz, Robert
Leitch, Ilia J.
Li, Lan
Negrão, Raquel
Oses Salas, Lizbeth Melissa
Phillips, Charlotte
Rincón González, Milton
Salazar Chávez, Gerardo Adolfo
Simpson, Lalita
Smidt, Eric
Solano Gómez, Rodolfo
Parra Sánchez, Edicson
Tremblay, Raymond L.
van den Berg, Cassio
Villanueva Tamayo, Boris Stefan
Zuluaga Trochez, Alejandro
Zuntini, Alexandre
Chase, Mark W.
Fay, Michael
Condamine, Fabien L.
Forest, Félix
Nargar, Katharina
Renner, Susanne S.
Baker, William J.
Antonelli, Alexandre
Metadatos
Mostrar el registro completo del ítemResumen
Orchids constitute one of the most spectacular radiations of flowering plants. However, their origin, spread across the globe, and hotspots of speciation remain uncertain due to the lack of an up-to-date phylogeographic analysis. We present a new Orchidaceae phylogeny based on combined high-throughput and Sanger sequencing data, covering all five subfamilies, 17/22 tribes, 40/49 subtribes, 285/736genera, and c. 7% (1921) of the 29 524 accepted species, and use it to infer geographic range evolution, diversity, and speciation patterns by adding curated geographical distributions from the World Checklist of Vascular Plants. The orchids’ most recent common ancestor is inferred to have lived in Late CretaceousLaurasia. The modern range of Apostasioideae, which comprises two genera with 16 species from India to northern Australia, is interpreted as relictual, similar to that of numerous other groups that went extinct at higher latitudes following the global climate cooling during theOligocene. Despite their ancient origin, modern orchid species diversity mainly originated over the last 5 Ma, with the highest speciation rates in Panama and Costa Rica.
These results alter our understanding of the geographic origin of orchids, previously pro-posed as Australian, and pinpoint Central America as a region of recent, explosive speciation
External link to the item
10.1111/nph.19580Colecciones
- Biología [1645]