Discovery of the first Asian plethodontid salamander
Discovery of the first Asian plethodontid salamander
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DOI：
10.1038/nature03474
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发表时间：
2005-05-05
期刊：
影响因子：
64.8
通讯作者：
Wake, DB
中科院分区：
文献类型：
--
作者：
Min, MS;Yang, SY;Wake, DB
世界上535种蝾螈中有近70%属于一个单一的家庭，Plethodontidae，或无肺蝾螈（1）。这个分支的多样性中心是北美洲和中美洲，那里绝大多数（99%）的蝾螈物种来自韩国西南部的山地林地。新物种表面上类似于北美属的成员，特别是形态上保守的Plethodon属。然而，核编码基因Rag-1的系统发育分析表明，新的分类群是广泛分歧的Plethodon。新的蝾螈在骨骼学上与假定的亲戚不同，特别是在舌头（附着在皮肤上）和衍生的跗骨方面（2-6）。根据形态学和分子生物学数据，我们将该种归入一个新属。新蝾螈的分布增加了旧大陆plethodontids的谜团，否则仅限于地中海西部地区（7，8），这表明该科过去的分布更广泛。
Nearly 70% of the 535 species of salamanders in the world are members of a single family, the Plethodontidae, or lungless salamanders(1). The centre of diversity for this clade is North and Middle America, where the vast majority (99%) of species salamander, from montane woodlands in southwestern Korea. The new species superficially resembles members of North American genera, in particular the morphologically conservative genus Plethodon. However, phylogenetic analysis of the nuclear encoded gene Rag-1 shows the new taxon to be widely divergent from Plethodon. The new salamander differs osteologically from putative relatives, especially with respect to the tongue ( attached protrusible) and the derived tarsus(2-6). We place the species in a new genus on the basis of the morphological and molecular data. The distribution of the new salamander adds to the enigma of Old World plethodontids, which are otherwise restricted to the western Mediterranean region(7,8), suggesting a more extensive past distribution of the family.