Evolutionary aspects of gobioid fishes based upon a phylogenetic analysis of mitochondrial cytochrome b genes
Evolutionary aspects of gobioid fishes based upon a phylogenetic analysis of mitochondrial cytochrome b genes
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DOI：
10.1016/s0378-1119(00)00488-1
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发表时间：
2000-12-23
期刊：
影响因子：
3.5
通讯作者：
Gojobori, T
中科院分区：
文献类型：
--
作者：
Akihito;Iwata, A;Gojobori, T
虾虎鱼亚目是鲈形目的一个大亚目，由大约270属的2000多个物种组成。鱼类种类繁多，形态特化程度高，适应不同的生活习性和生境，这使得鱼类分类十分困难，仅凭形态信息很难全面估计所有鱼类的进化情况，主要原因有两个：第一，除了广泛的生态多样性外，鱼类种类之间还存在着形态特化和退化的趋势;其次，我们通过对虾虎鱼线粒体细胞色素B基因序列的比较，建立了虾虎鱼分化为多个形态和生态多样性类群的系统发育关系。系统发育的尝试表明，大多数物种的研究几乎同时或在极短的时间内彼此分化。(C)2000 Elsevier Science B. V.保留所有权利。
The Gobioidei is a large suborder in the order Perciformes and consists of more than 2000 species belonging to about 270 genera. The vast number of species and their morphological specialization adapted to diverse habits and habitats makes the classification of the gobioid fishes very difficult.A comprehensive estimation of the evolutionary scenario of all gobioid fishes using only morphological information is difficult for two major reasons: first, in addition to wide ecological diversification, there is a trend towards specialization and degeneration of morphological characters among these species; second, an appropriate outgroup of gobioid fishes has not been recognized.Based upon nucleotide sequence comparisons of gobioid mitochondrial cytochrome b genes, we established the phylogenetic relationships of their differentiation into many groups of morphological and ecological diversity. The phylogenetic tries obtained show that most species examined have diverged from each other almost simultaneously or during an extremely short period of time. (C) 2000 Elsevier Science B.V. All rights reserved.