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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| Format: | Article |
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Nature Portfolio
2017-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-04261-z |
| _version_ | 1818752657255301120 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-18T04:54:57Z |
| format | Article |
| id | doaj.art-de7dded9fae44cab931997410d5a6650 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-18T04:54:57Z |
| publishDate | 2017-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-de7dded9fae44cab931997410d5a66502022-12-21T21:20:20ZengNature PortfolioScientific Reports2045-23222017-07-017111010.1038/s41598-017-04261-zAndean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the NeotropicsOscar Alejandro Pérez-Escobar0Marc Gottschling1Guillaume Chomicki2Fabien L. Condamine3Bente B. Klitgård4Emerson Pansarin5Günter Gerlach6Department Biologie, Systematische Botanik und Mykologie, GeoBio-Center, Ludwig-Maximilians UniversitätDepartment Biologie, Systematische Botanik und Mykologie, GeoBio-Center, Ludwig-Maximilians UniversitätDepartment Biologie, Systematische Botanik und Mykologie, GeoBio-Center, Ludwig-Maximilians UniversitätCNRS, UMR 5554 Institut de Sciences de l’Evolution (Université de Montpellier)Identification and Naming department, Royal Botanic Gardens, KewDepartamento de Biologia, Facultade de Filosofia, Ciências e Letras, Universidade de Sao PauloBotanischer Garten MünchenAbstract 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.https://doi.org/10.1038/s41598-017-04261-z |
| spellingShingle | 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 Scientific Reports |
| title | 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_short | 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 |
| url | https://doi.org/10.1038/s41598-017-04261-z |
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