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Phylogenetic relationships of megophryid frogs of the genus Leptobrachium (Amphibia, Anura) as revealed by mtDNA gene sequences

机译:mtDNA基因序列揭示的钩端螺旋体蛙(两栖动物,阿努拉)的变种蛙的亲缘关系

摘要

By investigating genealogical relationships, we estimated the phylogenetic history and biogeography in the megophryid genus Leptobrachium (sensu lato, including Vibrissaphora) from southern China, Indochina, Thailand and the Sundaland. The genealogical relationships among the 30 named and unnamed taxa were estimated using 2009 bp of sequences from the mitochondrial DNA genes 12S rRNA, tRNA(val), and 16S rRNA using maximum parsimony, maximum likelihood, and Bayesian inference methods. The genus Leptobrachium was a well-supported monophyletic group that contained two major clades. One clade had three subclades primarily from disjunct regions including Borneo, Peninsular Malaysia and Java, and Thailand. The Bornean subclade included one species each from the Philippines and Sumatra. The other major clade consisted of two subclades, one from Indochina and the other from southern China (Vibrissaphora). Divergence times estimated an old evolutionary history of each subclade, one that could not be explained by the geohistory of Southeast Asian major landmasses. (C) 2010 Elsevier Inc. All rights reserved.
机译:通过调查家谱关系,我们估算了来自华南,印度支那,泰国和苏达兰州的食虫性钩端螺旋体属(Lestobrachium)的系统发育史和生物地理学。使用最大简约性,最大似然性和贝叶斯推断方法,使用2009 bp线粒体DNA基因12S rRNA,tRNA(val)和16S rRNA的序列估计了30个命名和未命名分类单元之间的族谱关系。钩端螺旋体属是一个得到良好支持的单系种群,其中有两个主要进化枝。一个进化枝有三个主要进化枝,主要来自婆罗洲,马来西亚半岛和爪哇以及泰国等不同地区。婆罗洲子地区包括一个来自菲律宾和苏门答腊的物种。其他主要分支包括两个分支,一个来自印度支那,另一个来自中国南部(弧菌)。发散时间估计了每个子区域的古老进化历史,东南亚主要陆块的地理历史无法解释这一历史。 (C)2010 Elsevier Inc.保留所有权利。

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