Molecular systematics and evolution of Regina and the Thamnophiine snakes
Molecular systematics and evolution of Regina and the Thamnophiine snakes
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DOI：
10.1006/mpev.2001.1024
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发表时间：
2001-12-01
影响因子：
4.1
通讯作者：
Arnold, SJ
中科院分区：
文献类型：
--
作者：
Alfaro, ME;Arnold, SJ
Thamnophiini部落的蛇代表了在北美一系列栖息地的两栖动物区系的生态重要组成部分。Thamnophiines是最好的研究colubrids，但很少有人知道他们的系统关系。32 thamnophiine种使用三个完整的线粒体基因（细胞色素B，NADH脱氢酶亚基2和12 S核糖体DNA）的分子系统发育研究恢复了一个良好的支持的三个主要分支的同源性：束带蛇组，水蛇组，和一个新的semifossorial组。历史上有争议的Regina属，其中包括吃小龙虾的蛇，是多系的。Thamnophis的地理分布模式与至少有一次从墨西哥入侵北美北方的假设一致。(C)2001年，爱思唯尔科学。
Snakes of the tribe Thamnophiini represent an ecologically important component of the herpetofauna in a range of habitats across North America. Thamnophiines are the best-studied colubrids, yet little is known of their systematic relationships. A molecular phylogenetic study of 32 thamnophiine species using three complete mitochondrial genes (cytochrome b, NADH dehydrogenase subunit 2, and 12S ribosomal DNA) recovered a well-supported phylogeny with three major clades: a garter snake group, a water snake group, and a novel semifossorial group. The historically contentious genus Regina, which contains the crayfish-eating snakes, is polyphyletic. The phylogeographic pattern of Thamnophis is consistent with an hypothesis of at least one invasion of northern North America from Mexico. (C) 2001 Elsevier Science.