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Position: Home > Articles > Divergence Time Estimation of Fishes in Leuciscinae in Xinjiang Chinese Journal of Fisheries 2014 (1) 12-16

新疆雅罗鱼亚科鱼类分化时间的估计

作  者:
海萨;蔡林钢;孟玮;杨天燕;马徐发
单  位:
华中农业大学;新疆水产科学研究所
关键词:
雅罗鱼亚科;cyt b;系统发育;分子钟
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。
译  名:
Divergence Time Estimation of Fishes in Leuciscinae in Xinjiang
作  者:
HAI Sa;CAI Lin-gang;MENG Wei;YANG Tian-yan;MA Xu-fa;Xinjiang Fisheries Research Institute;Huazhong Agriculture University;
关键词:
Leuciscinae;;cytochrome b;;molecular phylogeny;;molecular clock
摘  要:
Fishes in Leuciscinae were originated earlier in Cyprinidae,and have significant differences in morphology. So far,the phylogenetic relationships within the subfamily Leuciscinae have still been very controversial. The phylogenetic relationships within Leuciscinae were reconstructed in six species in Leuciscinae distributed in Xinjiang by cyt b sequences and bayesian mixed models analysis. 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 Abramis,Rutilus and Leuciscus were found to be originated at Miocene.

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