Detection of cryptic taxa in Leptobrachium nigrops (Amphibia, Anura, Megophryidae), with description of two new species-猫眼课题宝

DOI：

10.5072/rin/jze0na

发表时间：

2012-07

期刊：

Zootaxa

影响因子：

0.9

通讯作者：

中科院分区：

生物学4区

文献类型：

作者：

A. Hamidy;M. Matsui;K. Nishikawa;Daicus M Belabut

研究了马来半岛、新加坡、印尼别里东和婆罗洲（沙捞越）的黑钩腿（Leptobrachium nigrops Berry & Hendrickson）异域居群间的分类关系。根据线粒体12S RNA、tRNAval和16S rRNA基因以及细胞核NCX1和SLC8A基因的序列数据估计的系统发育关系显示，黑黑的黑黑的进化支存在于3个不同的进化支中：(1)来自新加坡和马来半岛的黑黑的黑黑的进化支，(2)来自印度尼西亚的别里洞和婆罗洲沙捞越沿海地区的进化支，(3)来自婆罗洲内陆地区沙捞越的Kanowit进化支。这三个遗传分支中的每一个都被认为代表了不同的物种，因为它们在遗传上高度分化，在形态上可区分。因此，我们将来自别里洞和砂拉越沿海地区的种群描述为L. ingeri sp. nov，而将来自砂拉越内陆地区的种群描述为L. kanowitense sp. nov。L. kanowitense祖先入侵婆罗洲岛的时间似乎比L. ingeri祖先早得多，其分散发生在更新世冰期。动物分类学，第3398卷。书刊。22-39 ISSN 1175-5326

We evaluated taxonomic relationships among allopatric populations of Leptobrachium nigrops Berry & Hendrickson from Malay Peninsula, Singapore, Indonesia (Belitung), and Borneo (Sarawak). Phylogenetic relationships estimated from the sequence data of mitochondrial 12S RNA, tRNAval, and 16S rRNA genes, and nuclear NCX1 and SLC8A genes revealed presence of three distinct clades within L. nigrops: (1) true L. nigrops clade from Singapore and Malay Peninsula, (2) clade from Belitung, Indonesia and coastal area of Sarawak, Borneo, and (3) clade from Kanowit, Sarawak, an inland area of Borneo. Each of these three genetic clades is considered to represent distinct species because they are genetically highly divergent and morphologically distinguishable. We therefore describe the populations from Belitung and coastal area of Sarawak as L. ingeri sp. nov and the population from the inland area of Sarawak as L. kanowitense sp. nov. Ancestral L. kanowitense seems to have invaded Borneo Island much earlier than ancestral L. ingeri, whose dispersion occurred during the Pleistocene glacial periods. Zootaxa, Vol. 3398. Hal. 22-39 ISSN 1175-5326

Detection of cryptic taxa in Leptobrachium nigrops (Amphibia, Anura, Megophryidae), with description of two new species

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