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首页> 外文期刊>Herpetologica >Phylogenetics of the genus Chironius Fitzinger, 1826 (Serpentes, Colubridae) based on morphology
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Phylogenetics of the genus Chironius Fitzinger, 1826 (Serpentes, Colubridae) based on morphology

机译：基于形态学的1826年Chironius Fitzinger属的系统发育学（Serpentes，Colubridae）

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摘要

I present a phylogeny of the Latin American snake genus Chironius based on 36 external Morphological and hemipenal characters. Data from the literature for the 20 recognized species of Chironius were combined with data I collected from 20 outgroup taxa. I assessed the monophyly and in-group relationships of Chironius using both parsimony and methods. Two optimal trees were obtained using parsimony criteria; the genus Chironius is supported as monophyletic with 93% bootstrap support from six unambiguous synapomorphies, including in even number of scale rows at midbody. A Bayesian analysis of the data supports the monophyly of Chironius with a posterior probability of 100%. Both analyses inferred similar topologies; recognized species groups are partially supported, but this analysis suggests that revision of the genus is necessary. I propose elevation to full species status of taxa within the carinatus, fuscus, multiventris, and quadricarinatus species groups on the basis of morphological features unique to each taxon. Future Molecular work is necessary to resolve the remaining taxonomic issues within Chironius.
机译：我介绍了基于36个外部形态和半形特征的拉丁美洲蛇属Chironius的系统发育史。将来自20个公认的Chironius物种的文献资料与我从20个外群分类群中收集的数据结合在一起。我使用简约和方法评估了奇罗尼乌斯一夫一妻制和群内关系。使用简约标准获得了两棵最佳树木。 Chironius属以单系形式得到支持，来自六个明确的亚同形，包括中体的偶数个鳞片行，占93％的自举支持。数据的贝叶斯分析支持Chironius的单面性，后验概率为100％。两种分析均推断出相似的拓扑。公认的物种组得到了部分支持，但是该分析表明必须修改属。我建议根据每个分类群特有的形态特征，将其提升到角叉，双翅目，多翅目和四翅类中的整个分类单元。要解决Chironius内其余的分类问题，未来的分子工作是必不可少的。

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