Genetic and morphological variation in the Bulbophyllum exaltatum (Orchidaceae) complex occurring in the Brazilian “Campos Rupestres”: implications for taxonomy and biogeography

Authors

  • Patricia Luz Ribeiro Universidade Estadual de Feira de Santana, Departamento de Ciências Biológicas, Laboratório de Sistemática Molecular de Plantas, Rodovia BR116 Km 03, Feira de Santana, BA, 44031-460, Brazil
  • Eduardo Borba Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Botânica, Avenida Antônio Carlos 6627, Caixa Postal 486, Belo Horizonte, MG, 31270-901, Brazil
  • Eric Smidt Universidade Estadual de Feira de Santana, Departamento de Ciências Biológicas, Laboratório de Sistemática Molecular de Plantas, Rodovia BR116 Km 03, Feira de Santana, BA, 44031-460, Brazil
  • S.M. Lambert Universidade Estadual de Feira de Santana, Departamento de Ciências Biológicas, Laboratório de Sistemática Molecular de Plantas, Rodovia BR116 Km 03, Feira de Santana, BA, 44031-460, Brazil
  • A Selbach-Schnadelbach Universidade Estadual de Feira de Santana, Departamento de Ciências Biológicas, Laboratório de Sistemática Molecular de Plantas, Rodovia BR116 Km 03, Feira de Santana, BA, 44031-460, Brazil
  • Cássio Van den Berg Universidade Estadual de Feira de Santana, Departamento de Ciências Biológicas, Laboratório de Sistemática Molecular de Plantas, Rodovia BR116 Km 03, Feira de Santana, BA, 44031-460, Brazil

DOI:

https://doi.org/10.15517/lank.v7i1-2.18446

Keywords:

allozymes, Bulbophyllum exaltatum, Cadeia do Espinhaço, campo rupestre, genetic variability, geographic barrier

Abstract

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.

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Published

2015-06-17

How to Cite

Ribeiro, P. L., Borba, E., Smidt, E., Lambert, S., Selbach-Schnadelbach, A., & den Berg, C. V. (2015). Genetic and morphological variation in the Bulbophyllum exaltatum (Orchidaceae) complex occurring in the Brazilian “Campos Rupestres”: implications for taxonomy and biogeography. Lankesteriana: International Journal on Orchidology, 7(1-2). https://doi.org/10.15517/lank.v7i1-2.18446

Issue

2007: Lankesteriana: Volumen 7, Número 1-2

Section

Articles

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