Genetic and morphological variation in the Bulbophyllum exaltatum (Orchidaceae) complex occurring in the Brazilian “Campos Rupestres”: implications for taxonomy and biogeography
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| Autoři: | , , , , , |
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| Médium: | artículo original |
| Stav: | Versión publicada |
| Datum vydání: | 2015 |
| Popis: | Bulbophyllum Thouars is a pantropical genus. It is one of the most species-rich genera of the Orchidaceae, with ca. 1.200 species (Dressler 1993). The genus pre- sents myophily (pollination by Diptera) as pollination syndrome. Because orchid species are mainly self- compatible, we expect that fly-pollinated orchids pre- sent low variability within the populations and high genetic differentiation among conspecific populations, due to the reduction of the gene flow (Borba & Semir 1998, Borba et al. 2001). This could help to explain the high number of species in genera of fly-pollinated orchids, most of them with restricted distribution. |
| Země: | Portal de Revistas UCR |
| Instituce: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Jazyk: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/18446 |
| On-line přístup: | https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/18446 |
| Klíčové slovo: | allozymes Bulbophyllum exaltatum Cadeia do Espinhaço campo rupestre genetic variability geographic barrier |