Phylogenetic relationships and divergence time estimate of African anguilliform catfish (Siluriformes:Clariidae) inferred from ribosomal gene and spacer sequences
Phylogenetic relationships and divergence time estimate of African anguilliform catfish (Siluriformes:Clariidae) inferred from ribosomal gene and spacer sequences
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DOI：
10.1016/j.ympev.2005.09.011
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发表时间：
2006-01-01
影响因子：
4.1
通讯作者：
Adriaens, D
中科院分区：
文献类型：
--
作者：
Jansen, G;Devaere, S;Adriaens, D
鲶鱼科Clariidae包括身体形状从纺锤形到鳗形的物种。最近的研究表明，这种身体的伸长是趋同进化的结果。本文旨在系统发育框架下研究鳗形的进化。29个分类群的序列进行了分析，使用相邻连接，最大似然，最大简约，贝叶斯推理算法和简约算法在POY。这项研究产生的系统发育假说显示支持良好的分支。Anguilliformity似乎已经出现了至少四次，每一次都有一个姐妹群体与梭形胡子类祖先的关系。发散时间估计表明，非洲胡子鲶科开始辐射之间123和56百万年前。(c)2005年爱思唯尔公司All rights reserved.
The catfish family Clariidae comprises species in which the body shape ranges from fusiform to anguilliform. Recent studies have shown that this body elongation is the result of convergent evolution. This paper aims to study the evolution towards anguilliformity in a phylogenetic framework. Sequences of 29 taxa were analyzed using the neighbor-joining, maximum-likelihood, maximum-parsimony, and Bayesian inference algorithms and the parsimony algorithm in POY. The study yields phylogenetic hypotheses showing well-supported clades. Anguilliformity appears to have arisen at least four times, each time having a sister group relation with a fusiform Clarias-like ancestor. Divergence time estimation indicates that the African Clariidae started radiating between 123 and 56 My ago. (c) 2005 Elsevier Inc. All rights reserved.