Phylogeography of the California mountain kingsnake, Lampropeltis zonata (Colubridae)
Phylogeography of the California mountain kingsnake, Lampropeltis zonata (Colubridae)
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加州山王蛇 Lampropeltis zonata (Colubridae) 的系统发育地理学
DOI：
10.1046/j.1365-294x.1999.00793.x
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发表时间：
1999
影响因子：
4.9
通讯作者：
R. Staub
中科院分区：
文献类型：
--
作者：
J. Rodríguez;D. DeNardo;R. Staub
利用7个已知亚种标本的线粒体DNA序列，对加州山地王蛇Lamproeltis zonata进行了系统地理研究。最大简约法和最大似然法确定了斑潜蝇的基本裂隙，与其分布的南段和北段相对应。南部支系由来自美国南加州和墨西哥下加利福尼亚州北部的种群组成。北部支系分为两个亚支，一个是‘沿海’亚支，由加州中部海岸和加州东部内华达山脉南部的种群组成；另一个是‘东北’亚支，主要由旧金山湾以北和内华达山脉大部分地区的种群组成。我们认为，加利福尼亚州西南部过去的内陆航道和加利福尼亚州中部的海湾构成了基因流动的障碍，导致了L.zonata内部两个最深的分歧。纵观其进化史，北部支系显然经历了范围收缩、隔离、分化，然后扩大和二次接触的例子。对321条活体标本和保存标本的色型变异研究表明，用于确定斑纹蛇亚种的两个主要色型特征差异很大，不能可靠地区分该复合体内的分类单位，这对该蛇的7个地理小种的识别提出了质疑。
The phylogeography of the California mountain kingsnake, Lampropeltis zonata, was studied using mitochondrial DNA sequences from specimens belonging to the seven recognized subspecies and collected throughout the range of the species. Maximum parsimony and maximum likelihood methods identified a basal split within L. zonata that corresponds to southern and northern segments of its distribution. The southern clade is composed of populations from southern California (USA) and northern Baja California, Mexico. The northern clade is divided into two subclades, a ‘coastal’ subclade, consisting of populations from the central coast of California and the southern Sierra Nevada Mountains of eastern California, and a ‘northeastern’ subclade, mainly comprised of populations north of the San Francisco Bay and from the majority of the Sierra Nevada. We suggest that past inland seaways in southwestern California and the embayment of central California constituted barriers to gene flow that resulted in the two deepest divergences within L. zonata. Throughout its evolutionary history, the northern clade apparently has undergone instances of range contraction, isolation, differentiation, and then expansion and secondary contact. Examination of colour pattern variation in 321 living and preserved specimens indicated that the two main colour pattern characters used to define the subspecies of L. zonata are so variable that they cannot be reliably used to differentiate taxonomic units within this complex, which calls into question the recognition of seven geographical races of this snake.
影响因子：
10.7
作者：
Andrey Zharkikh;Wen-Hsiung Li
通讯作者：
Andrey Zharkikh;Wen-Hsiung Li
新世界地鼠、公牛和松蛇（Pituophis：蛇蛇科）（跨大陆物种复合体）的分子系统学。
DOI：
10.1006/mpev.1999.0698
发表时间：
2000
期刊：
Molecular phylogenetics and evolution.
影响因子：
--
作者：
Rodriguez-Robles,JA;DeJesus-Escobar,JM
通讯作者：
DeJesus-Escobar,JM