基于2种核蛋白编码基因序列研究16种对虾系统发育关系

发布时间：2018-05-17 04:05

本文选题：对虾科 + NaK基因　；参考：《厦门大学学报(自然科学版)》2017年06期

【摘要】：为了研究对虾科(Penaeidae)对虾的系统发育关系,基于2种细胞核蛋白编码基因钾钠腺苷三磷酸α亚基(NaK)基因和磷酸烯醇丙酮酸激酶(PEPCK)基因,使用邻接(neighbor-jointing,NJ)法构建了9属16种对虾的系统发育树.研究结果有力地支持了1983年Burkenroad提出的三群体分类系统,除新对虾属处于进化树最先起源的位置外,系统发育树形成3个进化枝,其一为对虾属、明对虾属、滨对虾属、囊对虾属和沟对虾属,其二为仿对虾属和鹰爪虾属,其三为赤虾属,分别对应为Penaeini、Trachypenaeini和Parapenaeini 3个群体.基于核基因的系统发育树很好地解决了线粒体基因构建的系统发育树中对虾属和明对虾属进化关系不明确的问题,赤虾属的进化关系也很好地符合了形态学分类结果,因此可以作为对虾系统进化研究的重要补充手段与其他的研究方法联合应用.
[Abstract]:In order to study the phylogenetic relationship of Penaeidaeae, two nuclear protein encoding genes, potassium sodium adenosine triphosphate 伪 subunit (NAK) gene and phosphoenolpyruvate kinase (PEPCK) gene, were used to study the phylogenetic relationship of Penaeidaeae. The phylogenetic trees of 16 species of Penaeus penaeus belonging to 9 genera were constructed by the method of adjacent neighbor-jointing NJ. The results strongly support the three populations classification system proposed by Burkenroad in 1983. In addition to the position of the genus Penaeus in the first origin of the evolutionary tree, the phylogenetic tree forms three evolutionary branches, one of which is the genus Penaeus, the genus Penaeus and the genus Penaeus. The genus Penaeus and Penaeus, the second is the genus Penaeus and the other is the genus Echinopteris, and the third is the genus Red Shrimp, corresponding to three populations, Penaeinius Trachypenaeini and Parapenaeini, respectively. The phylogenetic tree based on nuclear gene can solve the problem of unclear evolutionary relationship between Penaeus and Penaeus in the phylogenetic tree constructed by mitochondrial gene. Therefore, it can be used as an important supplementary method in the study of shrimp phylogeny and combined with other research methods.
【作者单位】：厦门大学海洋与地球学院;
【基金】：国家虾产业技术体系项目(CARS-48) 福建省科技厅重大专项专题项目(2016NZ0001-4) 福建省海洋高新产业发展专项项目(闽海洋高新[2014]12号) 厦门海洋经济创新发展示范项目(16CZY009SF05)
【分类号】：Q953

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