Genetic differentiation among species of the genus Thermophis Malnate (Serpentes, Colubridae) and comments on T. shangrila.
Genetic differentiation among species of the genus Thermophis Malnate (Serpentes, Colubridae) and comments on T. shangrila.
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Thermophis Malnate 属（蛇类、游蛇科）物种之间的遗传分化和香格里拉 T 的评论
DOI：
10.11646/zootaxa.4028.1.4
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发表时间：
2015
期刊：
影响因子：
0.9
通讯作者：
Miehe G
中科院分区：
文献类型：
--
作者：
Hofmann S;Tillack F;Miehe G
Thermophis属包括两个种，T. baileyi和T.在形态、地理和分子水平上均存在差异。最近，在中国云南省北方的香格里拉发现了第三种Thermophis，命名为T。香格里拉。新物种是基于来自三个标本的形态和遗传数据。然而，用于界定本种的形态特征似乎模糊，因为它们可能属于T.赵尔密。此外，核数据中报告的遗传差异是值得怀疑的。它们可能是由于比对/分析缺陷或样品/序列混淆造成的误解。在这里，我们使用的部分序列的三个线粒体（CO 1，ND 4，cytb）基因和一个核（c-mos）基因分析的遗传变异之间和种内的温。我们使用贝叶斯推理和最大似然法推断出了该物种的发生，并提出了有助于该属种内变异知识的额外形态学数据。我们的研究结果表明，缺乏鲁棒性的区别形态特征和T。香格里拉和强调需要更详细的形态和分子研究，从一个大大增加的样本。
The genus Thermophis includes the two species, T. baileyi and T. zhaoermii, which differ morphologically, geographically and molecularly. Recently, a third Thermophis species was described from Shangri-La, northern Yunnan Province, China, and named T. shangrila. The new species was based on morphological and genetic data derived from three specimens. However, the morphological features used to delimit this species seem vague, because they may fall within the range of intraspecific variation of T. zhaoermii. Furthermore, the reported genetic differences in nuclear data are questionable. They likely resulted from a misinterpretation probably due to alignment/analytical flaws or sample/sequence mix-up. Here, we used partial sequences of three mitochondrial (CO1, ND4, cytb) genes and one nuclear (c-mos) gene to analyse the genetic variation between and within species of Thermophis. We inferred the phylogeny using Bayesian Inference and Maximum Likelihood approaches and present additional morphological data that contribute to the knowledge on intraspecific variation in the genus. Our results indicate lacking robustness in the distinguishing morphological features and in the genetic differentiation of T. shangrila and highlight the need for more detailed morphological and molecular studies from a substantially larger sample.