Mitochondrial genes reveal cryptic diversity in plant-breeding frogs from Madagascar (Anura, Mantellidae, Guibemantis)
- 作者：Richard M. Lehtinen ; Ronald A. Nussbaum ; Christina M. Richards ; David C. Cannatella ; Miguel Vences
- 关键词：Amphibia ; Pandanusicola ; Phylogeny ; Phytotelmata
- 刊名：Molecular Phylogenetics and Evolution
- 出版年：2007
- 期刊代码：176_10557903
- 类别：bio
- 出版时间：September 2007
- 卷：44
- 期：3
- 页码：1121-1129
- 文件大小：263 K
摘要
One group of mantellid frogs from Madagascar (subgenus Pandanusicola of Guibemantis) includes species that complete larval development in the water-filled leaf axils of rainforest plants. This group consists of six described species: G. albolineatus, G. bicalcaratus, G. flavobrunneus, G. liber, G. pulcher, and G. punctatus. We sequenced the 12S and 16S mitochondrial rRNA genes (
1.8 kb) from multiple specimens (35 total) of all six species to assess phylogenetic relationships within this group. All reconstructions strongly supported G. liber as part of the Pandanusicola clade, even though this species does not breed in plant leaf axils. This result confirms a striking reversal of reproductive specialization. However, all analyses also indicated that specimens assigned to G. liber include genetically distinct allopatric forms that do not form a monophyletic group. Most other taxa that were adequately sampled (G. bicalcaratus, G. flavobrunneus, and G. pulcher) likewise consist of several genetically distinct lineages that do not form monophyletic groups. These results suggest that many of the recognized species in this group are complexes of cryptic species.
1.8 kb) from multiple specimens (35 total) of all six species to assess phylogenetic relationships within this group. All reconstructions strongly supported G. liber as part of the Pandanusicola clade, even though this species does not breed in plant leaf axils. This result confirms a striking reversal of reproductive specialization. However, all analyses also indicated that specimens assigned to G. liber include genetically distinct allopatric forms that do not form a monophyletic group. Most other taxa that were adequately sampled (G. bicalcaratus, G. flavobrunneus, and G. pulcher) likewise consist of several genetically distinct lineages that do not form monophyletic groups. These results suggest that many of the recognized species in this group are complexes of cryptic species.