| 新疆雅罗鱼亚科鱼类分化时间的估计 |
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| 引用本文： | 海萨,蔡林钢,孟玮,杨天燕,马徐发.新疆雅罗鱼亚科鱼类分化时间的估计[J].鲑鳟渔业,2014(1):12-16. |
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| 作者姓名： | 海萨 蔡林钢 孟玮 杨天燕 马徐发 |
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| 作者单位： | [1]新疆水产科学研究所,新疆 乌鲁木齐830000 [2]华中农业大学,湖北 武汉430070 |
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| 基金项目： | 国家科技基础性工作专题课题（2012FY112700）；国家科技基础条件平台-水产种质资源平台 |
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| 摘 要： | 在鲤科鱼类中雅罗鱼亚科鱼类起源较早，形态差异显著。迄今为止，有关雅罗鱼亚科的系统发育关系还存在很大的争议。本文以新疆分布的雅罗鱼亚科鱼类为对象，采用线粒体DNA中的cyt b基因序列，用贝叶斯联合模型分析数据，重建了雅罗鱼亚科的系统发育关系；结合鲤亚科和裂腹鱼亚科，用松散分子钟估算了雅罗鱼亚科属间的分歧时间。结果显示：丁鱥属（Tinca）处于系统发育树的基部，新疆雅罗鱼亚科鱼类中丁鱥属（36Ma）和鱥属（Phoxinus）（29Ma）的起源于渐新世，而欧鳊属（Abramis）（20Ma）、拟鲤属（Rutilus）（18Ma）、雅罗鱼属（Leuciscus）（13Ma）起源于中新世。
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| 关 键 词： | 雅罗鱼亚科 cyt b 系统发育 分子钟 |
Divergence Time Estimation of Fishes in Leuciscinae in Xinjiang |
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| Authors: | HAI Sa CAI Lin-gang MENG Wei YANG Tian-yan MA Xu-fa |
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| Institution: | 1. Xinjiang Fisheries Research Institute, Uromuqi 83000, China;2. Huazhong Agriculture University, Wuhan 430070, China) |
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| Abstract: | Fishes in Leuciscinae were originated earlier in Cyprinidae, and have significant differences in morphology. So far, the phy- logenetic relationships within the subfamily Leuciscinae have still been very controversial. The phylogenetic relationships within Leu- ciscinae were reconstructed in six species in Leuciscinae distributed in Xinjiang by cyt b sequences and bayesian mixed models analy- sis. The divergence time of genera within Leuciscinae were estimated using relaxed molecular clock method. Genus Tinca was found at the base of the phylogentic tree; and genera Tinca and Phoxinus were originated at Oligocene, while genera A bramis, Rutilus and Leu- ciscus were found to be originated at Miocene. |
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| Keywords: | Leuciscinae cytochrome b molecular phylogeny molecular clock |
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