PRELIMINARY MOLECULAR PHYLOGENETICS OF SOBRALIA AND RELATIVES (ORCHIDACEAE: SOBRALIEAE)
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| Format: | Artículo científico |
| Language: | en |
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Universidad de Costa Rica
2011
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| author | Kurt M. Neubig |
| author_facet | Kurt M. Neubig |
| contents | PRELIMINARY MOLECULAR PHYLOGENETICS OF SOBRALIA AND RELATIVES (ORCHIDACEAE: SOBRALIEAE) Kurt M. Neubig W. Mark Whitten Mario A. Blanco Lorena Endara Norris H. Williams Samantha Koehler Biología Sobralia Sobralieae Orchidaceae phylogenetics With over 200 species, the orchid tribe Sobralieae is a major constituent of the Neotropical flora. As currently circumscribed, the tribe includes four genera: Elleanthus, Epilyna, Sertifera, and Sobralia. Most species of these four genera typically produce long, cane-like stems but differ drastically in flower size and inflorescence structure. DNA sequence data support the monophyly of Elleanthus, Epilyna, and Sertifera but not Sobralia, which is a polyphyletic assemblage traditionally placed together due to relatively large flower size. Details of inflorescence structure provide characters that can easily distinguish the different clades of Sobralia. The misleading characteristic of flower size is probably due to at least several shifts in pollination syndrome within the tribe. With few exceptions, species of Sobralia predominantly offer no reward and are pollinated by bees. Elleanthus and Sertifera are small-flowered and mostly pollinated by hummingbirds with legitimate rewards. Nothing is known of pollination in Epilyna. Understanding the evolution of shifts in pollination syndrome will require more empirical observations of pollination within Sobralieae. In addition, increased taxon sampling and improved phylogenetic resolution are needed before generic realignments are made. 2011 artículo científico 1409-3871 https://www.redalyc.org/articulo.oa?id=44339822014 en http://www.redalyc.org/revista.oa?id=443 Lankesteriana International Journal on Orchidology application/pdf Universidad de Costa Rica Lankesteriana International Journal on Orchidology (Costa Rica) Num.3 Vol.11 |
| format | Artículo científico |
| id | redalyc_44339822014 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Universidad de Costa Rica |
| spellingShingle | PRELIMINARY MOLECULAR PHYLOGENETICS OF SOBRALIA AND RELATIVES (ORCHIDACEAE: SOBRALIEAE) Kurt M. Neubig Biología Sobralia Sobralieae Orchidaceae phylogenetics PRELIMINARY MOLECULAR PHYLOGENETICS OF SOBRALIA AND RELATIVES (ORCHIDACEAE: SOBRALIEAE) Kurt M. Neubig W. Mark Whitten Mario A. Blanco Lorena Endara Norris H. Williams Samantha Koehler Biología Sobralia Sobralieae Orchidaceae phylogenetics With over 200 species, the orchid tribe Sobralieae is a major constituent of the Neotropical flora. As currently circumscribed, the tribe includes four genera: Elleanthus, Epilyna, Sertifera, and Sobralia. Most species of these four genera typically produce long, cane-like stems but differ drastically in flower size and inflorescence structure. DNA sequence data support the monophyly of Elleanthus, Epilyna, and Sertifera but not Sobralia, which is a polyphyletic assemblage traditionally placed together due to relatively large flower size. Details of inflorescence structure provide characters that can easily distinguish the different clades of Sobralia. The misleading characteristic of flower size is probably due to at least several shifts in pollination syndrome within the tribe. With few exceptions, species of Sobralia predominantly offer no reward and are pollinated by bees. Elleanthus and Sertifera are small-flowered and mostly pollinated by hummingbirds with legitimate rewards. Nothing is known of pollination in Epilyna. Understanding the evolution of shifts in pollination syndrome will require more empirical observations of pollination within Sobralieae. In addition, increased taxon sampling and improved phylogenetic resolution are needed before generic realignments are made. 2011 artículo científico 1409-3871 https://www.redalyc.org/articulo.oa?id=44339822014 en http://www.redalyc.org/revista.oa?id=443 Lankesteriana International Journal on Orchidology application/pdf Universidad de Costa Rica Lankesteriana International Journal on Orchidology (Costa Rica) Num.3 Vol.11 |
| title | PRELIMINARY MOLECULAR PHYLOGENETICS OF SOBRALIA AND RELATIVES (ORCHIDACEAE: SOBRALIEAE) |
| topic | Biología Sobralia Sobralieae Orchidaceae phylogenetics |
| url | https://www.redalyc.org/articulo.oa?id=44339822014 |