Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics

Abstract The Andean uplift is one of the major orographic events in the New World and has impacted considerably the diversification of numerous Neotropical lineages. Despite its importance for biogeography, the specific role of mountain ranges as a dispersal barrier between South and Central America...

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Autores principales:	Oscar Alejandro Pérez-Escobar, Marc Gottschling, Guillaume Chomicki, Fabien L. Condamine, Bente B. Klitgård, Emerson Pansarin, Günter Gerlach
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/de7dded9fae44cab931997410d5a6650
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spelling	oai:doaj.org-article:de7dded9fae44cab931997410d5a66502021-12-02T16:07:59ZAndean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics10.1038/s41598-017-04261-z2045-2322https://doaj.org/article/de7dded9fae44cab931997410d5a66502017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04261-zhttps://doaj.org/toc/2045-2322Abstract The Andean uplift is one of the major orographic events in the New World and has impacted considerably the diversification of numerous Neotropical lineages. Despite its importance for biogeography, the specific role of mountain ranges as a dispersal barrier between South and Central American lowland plant lineages is still poorly understood. The swan orchids (Cycnoches) comprise ca 34 epiphytic species distributed in lowland and pre-montane forests of Central and South America. Here, we study the historical biogeography of Cycnoches to better understand the impact of the Andean uplift on the diversification of Neotropical lowland plant lineages. Using novel molecular sequences (five nuclear and plastid regions) and twelve biogeographic models, we infer that the most recent common ancestor of Cycnoches originated in Amazonia ca 5 Mya. The first colonization of Central America occurred from a direct migration event from Amazonia, and multiple bidirectional trans-Andean migrations between Amazonia and Central America took place subsequently. Notably, these rare biological exchanges occurred well after major mountain building periods. The Andes have limited plant migration, yet it has seldom allowed episodic gene exchange of lowland epiphyte lineages such as orchids with great potential for effortless dispersal because of the very light, anemochorous seeds.Oscar Alejandro Pérez-EscobarMarc GottschlingGuillaume ChomickiFabien L. CondamineBente B. KlitgårdEmerson PansarinGünter GerlachNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Oscar Alejandro Pérez-Escobar Marc Gottschling Guillaume Chomicki Fabien L. Condamine Bente B. Klitgård Emerson Pansarin Günter Gerlach Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics
description	Abstract The Andean uplift is one of the major orographic events in the New World and has impacted considerably the diversification of numerous Neotropical lineages. Despite its importance for biogeography, the specific role of mountain ranges as a dispersal barrier between South and Central American lowland plant lineages is still poorly understood. The swan orchids (Cycnoches) comprise ca 34 epiphytic species distributed in lowland and pre-montane forests of Central and South America. Here, we study the historical biogeography of Cycnoches to better understand the impact of the Andean uplift on the diversification of Neotropical lowland plant lineages. Using novel molecular sequences (five nuclear and plastid regions) and twelve biogeographic models, we infer that the most recent common ancestor of Cycnoches originated in Amazonia ca 5 Mya. The first colonization of Central America occurred from a direct migration event from Amazonia, and multiple bidirectional trans-Andean migrations between Amazonia and Central America took place subsequently. Notably, these rare biological exchanges occurred well after major mountain building periods. The Andes have limited plant migration, yet it has seldom allowed episodic gene exchange of lowland epiphyte lineages such as orchids with great potential for effortless dispersal because of the very light, anemochorous seeds.
format	article
author	Oscar Alejandro Pérez-Escobar Marc Gottschling Guillaume Chomicki Fabien L. Condamine Bente B. Klitgård Emerson Pansarin Günter Gerlach
author_facet	Oscar Alejandro Pérez-Escobar Marc Gottschling Guillaume Chomicki Fabien L. Condamine Bente B. Klitgård Emerson Pansarin Günter Gerlach
author_sort	Oscar Alejandro Pérez-Escobar
title	Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics
title_short	Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics
title_full	Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics
title_fullStr	Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics
title_full_unstemmed	Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics
title_sort	andean mountain building did not preclude dispersal of lowland epiphytic orchids in the neotropics
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/de7dded9fae44cab931997410d5a6650
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Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics

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