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首页> 外文期刊>Molecular phylogenetics and evolution >Mitochondrial genes reveal cryptic diversity in plant-breeding frogs from Madagascar (Anura, Mantellidae, Guibemantis)
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Mitochondrial genes reveal cryptic diversity in plant-breeding frogs from Madagascar (Anura, Mantellidae, Guibemantis)

机译：线粒体基因揭示了来自马达加斯加（安努拉，曼特里科，吉贝曼提斯）的植物蛙的隐性多样性

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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 (similar to 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. (c) 2007 Elsevier Inc. All rights reserved.
机译：马达加斯加（吉贝曼提斯的潘达努西科拉属）的一组蛙类青蛙包括在雨林植物充满水的叶腋中完成幼虫发育的物种。该组由六个所描述的物种组成：白线菌，双钙线虫，黄褐肉线虫，利比氏菌，短吻线虫和点状线虫。我们对来自所有六个物种的多个标本（共35个）的12S和16S线粒体rRNA基因（约1.8 kb）进行了测序，以评估该组内的系统发育关系。尽管该物种未在植物叶腋中繁殖，但所有重建都强烈支持作为潘达努斯科拉进化枝的一部分的自由放线杆菌。这一结果证实了生殖专业化的惊人逆转。但是，所有分析还表明，分配给解放军的标本包括遗传上不同的异源形式，这些形式不构成单基因组。充分采样的大多数其他类群（双钙歧杆菌，黄褐肉孢杆菌和普氏芽孢杆菌）同样由几个遗传上不同的谱系组成，这些谱系不构成单系群体。这些结果表明该组中许多公认的物种是隐性物种的复合体。 （c）2007 Elsevier Inc.保留所有权利。

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