Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
Sci China Life Sci. 2012 Sep;55(9):761-73. doi: 10.1007/s11427-012-4366-z. Epub 2012 Sep 27.
Cyprinidae is the biggest family of freshwater fish, but the phylogenetic relationships among its higher-level taxa are not yet fully resolved. In this study, we used the nuclear recombination activating gene 2 and the mitochondrial 16S ribosomal RNA and cytochrome b genes to reconstruct cyprinid phylogeny. Our aims were to (i) demonstrate the effects of partitioned phylogenetic analyses on phylogeny reconstruction of cyprinid fishes; (ii) provide new insights into the phylogeny of cyprinids. Our study indicated that unpartitioned strategy was optimal for our analyses; partitioned analyses did not provide better-resolved or -supported estimates of cyprinid phylogeny. Bayesian analyses support the following relationships among the major monophyletic groups within Cyprinidae: (Cyprininae, Labeoninae), ((Acheilognathinae, ((Leuciscinae, Tincinae), Gobioninae)), Xenocyprininae). The placement of Danioninae was poorly resolved. Estimates of divergence dates within the family showed that radiation of the major cyprinid groups occurred during the Late Oligocene through the Late Miocene. Our phylogenetic analyses improved our understanding of the evolutionary history of this important fish family.
鲤科是淡水鱼类中最大的科，但其高级分类群的系统发育关系尚未完全解决。在这项研究中，我们使用核重组激活基因 2 和线粒体 16S 核糖体 RNA 和细胞色素 b 基因来重建鲤科鱼类的系统发育。我们的目的是：（i）展示分区系统发育分析对鲤科鱼类系统发育重建的影响；（ii）为鲤科鱼类的系统发育提供新的见解。我们的研究表明，不分区策略是我们分析的最佳选择；分区分析并没有提供更好解析或支持的鲤科鱼类系统发育估计。贝叶斯分析支持鲤科内主要单系群之间的以下关系：（鲤科，无须鳕科），（（雅罗鱼科，（（鲤科，鳉科），鳊科）），（鱲科）。 Danioninae 的位置解析度较差。家族内的分歧日期估计表明，主要鲤科鱼类群体的辐射发生在晚渐新世至晚中新世。我们的系统发育分析提高了我们对这个重要鱼类家族进化历史的理解。
