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首页> 外文期刊>Fisheries Science >Genetic homogeneity between adult and juvenile populations of Scombrops gilberti (Percoid, Scombropidae) in the Pacific Ocean off the Japanese Islands
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Genetic homogeneity between adult and juvenile populations of Scombrops gilberti (Percoid, Scombropidae) in the Pacific Ocean off the Japanese Islands

机译：日本离岛太平洋太平洋成年S（Scombrops gilberti）（Percoid，Scombropidae）的成年和未成年种群之间的遗传同质性

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摘要

Scombrops gilberti is a member of the percoid family Scombropidae, which includes a single genus and three to four species worldwide. Little is known about the ecology of this species. Juvenile S. gilberti have been found in the waters off northern Japan (Iwate Prefecture), whereas adults are found in the waters around the southern counterpart (Izu Islands), approximately 700 km from the northern waters. In the present study, we captured immature S. gilberti (106–248 mm standard length, SL) in the northern waters by set net at 8–80 m depth, whereas larger individuals (150–328 mm SL) were captured by trawling at 150–500 m depth. By contrast, only adult S. gilberti (422–590 mm SL) were captured in the southern waters. The genetic composition of the adult population of S. gilberti from the southern waters and of the juvenile population from the northern waters was compared using the nucleotide sequence of the mitochondrial DNA (mtDNA) cytochrome b gene. No significant differences in genetic parameters such as fixation index, neutrality test or mismatch distribution analysis were found between these geographically distinct populations of S. gilberti, showing that these populations are genetically homogeneous.
机译：吉氏com（Scombrops gilberti）是is虫科（Scobropidae）的成员，该科包括一个属和全世界三到四个物种。对这种物种的生态知之甚少。在日本北部（岩手县）附近的水域中发现了少年吉尔伯特氏菌，而在南部对应地区（伊豆群岛）附近的水域中发现了成年成年人，距离北部水域约700公里。在本研究中，我们通过在8–80 m深度的定网捕获北部水域中的未成熟S. gilberti（106–248 mm标准长度，SL），而通过拖网捕获了较大的个体（150–328 mm SL）。深度150–500 m。相比之下，南部水域仅捕获到成年的S. gilberti（422–590 mm SL）。使用线粒体DNA（mtDNA）细胞色素b基因的核苷酸序列比较了南部水域的吉尔伯氏链球菌和北部水域的青少年种群的遗传组成。这些地理上不同的吉尔伯特氏菌种群之间的遗传参数，如固定指数，中性测试或错配分布分析，均未发现显着差异，表明这些种群在遗传上是同质的。

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