Molecular phylogeny, classification, and biogeography of West Indian racer snakes of the Tribe Alsophiini (Squamata, Dipsadidae, Xenodontinae)
Molecular phylogeny, classification, and biogeography of West Indian racer snakes of the Tribe Alsophiini (Squamata, Dipsadidae, Xenodontinae)
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西印度赛马蛇部落 Alsophiini（有鳞蛇、Dipsadidae、Xenodontinae）的分子系统发育、分类和生物地理学
DOI：
10.11646/zootaxa.2067.1.1
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发表时间：
2009
期刊：
影响因子：
0.9
通讯作者：
N. Vidal
中科院分区：
文献类型：
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作者：
S. Hedges;A. Couloux;N. Vidal
大多数西印度群岛的蛇属于异齿蛇亚科和Alsophiini族。正如这里所认识到的，alsophiine蛇只分布在西印度群岛，包括43种分布在整个地区。这些蛇是细长的，通常移动迅速（积极觅食），白天活动的物种通常被称为赛车手。在过去的四十年里，他们的分类为六个属是基于一项研究，利用半阴茎和外部形态，并得出结论，他们的地理历史涉及多个殖民地从大陆。虽然后来的研究大多不同意这种分类学和分类学，但直到现在还没有提出分类的重大变化。本文对35种及亚种的紫草属植物的5个线粒体基因和1个核基因进行了序列分析。我们的研究结果比以前基于形态学的分类更符合地理，并支持将Alsophiines的物种重新分类为7个命名和3个新属：阿尔索菲斯·菲茨辛格（Lesser Antilles），Arrhyton Gunther（Cuba），Borikenophis Hedges & Vidal gen. nov.（Puerto Rican Bank and nearby islands），Caraiba Zaher et al.（Cuba），Cubophis Hedges & Vidal gen. nov.（主要是古巴，但延伸到整个西加勒比和巴哈马银行），海地奥菲斯对冲和维达尔gen. nov.（伊斯帕尼奥拉岛）、Hypsirhynchus Gunther（伊斯帕尼奥拉岛和牙买加）、Ialtris科普（伊斯帕尼奥拉岛）、Magliophis Zaher等人（波多黎各银行）和Uromacer Dumeril & Bibron（伊斯帕尼奥拉岛）。一些亚种被认为是完整的物种。在Alsophiini Fitzinger部落中有三个亚族：Alsophiina Fitzinger（Alsophis，Borikenophis，Caraiba，Cubophis，Haitiophis，Hypsirhynchus，Ialtris和Magliophis），Arrhytonina Hedges & Vidal subtribus nov（Arrhyton）和Uromacerina Hedges & Vidal subtribus nov（Uromacer）。基于分子数据的分歧时间估计表明，alsophiines的起源相对较近（约1700 - 1300万年前，Ma）。一个单一的物种显然是从南美洲分散的，可能是在伊斯帕尼奥拉岛或古巴殖民，然后（13-0 Ma）分散到其他岛屿和随后的适应性辐射，主要是在上新世（5.3-1.8 Ma）和更新世（1.8-0.01 Ma）。需要更多的证据来解决属和种组之间的所有关系，以及它们的地理历史的进一步细节。
Most West Indian snakes of the family Dipsadidae belong to the Subfamily Xenodontinae and Tribe Alsophiini. As recognized here, alsophiine snakes are exclusively West Indian and comprise 43 species distributed throughout the region. These snakes are slender and typically fast-moving (active foraging), diurnal species often called racers. For the last four decades, their classification into six genera was based on a study utilizing hemipenial and external morphology and which concluded that their biogeographic history involved multiple colonizations from the mainland. Although subsequent studies have mostly disagreed with that phylogeny and taxonomy, no major changes in the classification have been proposed until now. Here we present a DNA sequence analysis of five mitochondrial genes and one nuclear gene in 35 species and subspecies of alsophiines. Our results are more consistent with geography than previous classifications based on morphology, and support a reclassification of the species of alsophiines into seven named and three new genera: Alsophis Fitzinger (Lesser Antilles), Arrhyton Gunther (Cuba), Borikenophis Hedges & Vidal gen. nov. (Puerto Rican Bank and nearby islands), Caraiba Zaher et al. (Cuba), Cubophis Hedges & Vidal gen. nov. (primarily Cuba but extending throughout the western Caribbean and Bahamas Bank), Haitiophis Hedges & Vidal gen. nov. (Hispaniola), Hypsirhynchus Gunther (Hispaniola and Jamaica), Ialtris Cope (Hispaniola), Magliophis Zaher et al. (Puerto Rican Bank), and Uromacer Dumeril & Bibron (Hispaniola). Several subspecies are recognized as full species. Three subtribes are recognized within the tribe Alsophiini Fitzinger: Alsophiina Fitzinger (for Alsophis, Borikenophis, Caraiba, Cubophis, Haitiophis, Hypsirhynchus, Ialtris, and Magliophis), Arrhytonina Hedges & Vidal subtribus nov. (for Arrhyton), and Uromacerina Hedges & Vidal subtribus nov. (for Uromacer). Divergence time estimates based on the molecular data indicate a relatively recent (~17–13 million years ago, Ma) origin for alsophiines. A single species apparently dispersed from South America, probably colonizing Hispaniola or Cuba and then later (13–0 Ma) there was dispersal to other islands and subsequent adaptive radiation, mostly in the Pliocene (5.3–1.8 Ma) and Pleistocene (1.8–0.01 Ma). More evidence will be needed to resolve all relationships among the genera and species groups and further details of their biogeographic history.
检测基因中的序列变化。
DOI：
10.1007/bf01534942
发表时间：
1987
期刊：
Somatic cell and molecular genetics
影响因子：
--
作者：
Lerman,LS
通讯作者：
Lerman,LS