Toward the phylogeny of the family Lacertidae:: Implications from mitochondrial DNA 12S and 16S gene sequences (Reptilia: Squamata)

Toward the phylogeny of the family Lacertidae:: Implications from mitochondrial DNA 12S and 16S gene sequences (Reptilia: Squamata)
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DOI:
10.1006/mpev.1997.0456
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发表时间:
1998-02-01
影响因子:
4.1
通讯作者:
Fu, JZ
Fu, JZ
中科院分区:
生物学1区
文献类型:
--
作者:
Fu, JZ

文献摘要

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蜥蜴科的系统发育源自 mtDNA 基因序列数据。分析中包括 17 个物种,代表目前公认的 16 个属和亚属。从12S和16S部分基因序列中获得并比对总共954bp。基于加权简约和功能性内群体和外群体分析选择了首选树。使用衰减分析、引导和排列尾部概率来评估对恢复节点的支持。 Gallottia 属被确定为基础分类单元和所有剩余蜥蜴科的姐妹群。接下来,Takydromus 又分叉了。所有非洲蜥蜴科都聚集在一起,与欧亚蜥蜴属和蛇蜥属形成一个单系支。剩下的欧亚蜥蜴在树根附近以“梳子状”的方式依次分枝。 Gallottia的基部位置和非洲蜥蜴的单系性与之前的假设一致。蜥蜴起源于欧洲的假说得到了支持,蜥蜴在非洲的分布很可能是中新世的传播事件。大多数现存的欧洲蜥蜴可能出现在始新世之后。家庭的分类需要修改。 (C) 1998 年学术出版社。
A phylogeny of the family Lacertidae was derived from mtDNA gene sequence data. Seventeen species, representing 16 currently recognized genera and subgenera, were included in the analysis. A total of 954 bp was obtained and aligned from 12S and 16S partial gene sequences. A preferred tree was selected based on weighted parsimony and functional ingroup and outgroup analyses. Decay analysis, bootstrapping, and permutation tail probability were used to evaluate support for the recovered nodes. The genus Gallotia was resolved as the basal taxon and the sister group of all remaining lacertids. Takydromus branched off next. All African lacertids grouped together and formed a monophyletic clade with the Eurasian genera Eremias and Ophisops. The remaining Eurasian lacertids sequentially branched off near the base of the tree in a "comb-like" fashion. The basal position of Gallotia and the monophyly of African lacertids are consistent with previous hypotheses. The European-origin hypothesis of lacertids is favored, and the distribution of lacertids in Africa is likely a Miocene dispersal event. Most of the extant European lacertids probably arose after the Eocene. The classification of the family needs to be revised. (C) 1998 Academic Press.