细胞色素b基因序列与7种石首鱼类的系统进化  

Phylogenetic relationships of 7 Sciaenidae species based on cytochrome b gene sequences

作　　者：田兰香[1] 梁冰[1] 张树义[1] 赵盛龙[2] 王日昕[2] 

机构地区：[1]中国科学院动物研究所,北京100080 [2]浙江海洋学院海洋科技学院,浙江舟山316004

出　　处：《台湾海峡》2004年第4期436-443,共8页Journal of Oceanography In Taiwan Strait

基　　金：国家自然科学基金资助项目(30025007);中国科学院创新项目(KSCX3 IOZ 03)和极其重要创新方向项目(KSCX2 1 03)

摘　　要：通过比较一段381bp细胞色素b基因序列,分析了石首鱼科7种石首鱼的系统发育关系.该序列有51个单变异多态位点、128个简约信息多态位点,对应的氨基酸序列有41个氨基酸变异位点.根据Kimura2参数构建的邻接树(NJtree)和最大简约树(MPtree)都显示同样的结果:7种石首鱼类构成一个单系群.皮氏叫姑鱼位于单系群的基部,且与其他石首鱼分离时间很早;大黄鱼和棘头梅童鱼亲缘关系最近,并与钩牙皇石首鱼和波纹短须石首鱼构成姐妹群.黄姑鱼和鱼也接近树的基部.Phylogenetic relationships of 7 Sciaenidae species, including5 Chinese exclusive (species) and 2 foreign species were analyzed based on the381bp mitochondrial cytochrome b gene sequences. There are 51 singleton polymorphic sites and 128 parsimony informative polymorphic sites in this DNA segment, and also 41 polymorphicsites within the total 127 translated amino acids segment. Both NJ(neighbour-joint) tree and MP(maximum-parsimony) tree show that Johnius belengerii is basalto the others, followed by Nibea albiflora and Miichthys miiuy. All species form a monophyletic claster in which Johnius belengerii diverged first.Pseudosciaena crocea and Collichthys lucidus are sister taxa,the same as for Macrodon ancylodon and (Umbrina) cirrosa.

关 键 词：鱼类 多态位点 大黄鱼 亲缘关系 变异 系统进化 黄姑鱼 细胞色素B基因 系统发育关系 序列 

分 类 号：P631.84[天文地球—地质矿产勘探] Q959[天文地球—地质学]