...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zoological Science >Phylogeography of the Brackish Water Clam Corbicula japonica Around the Japanese Archipelago Inferred from Mitochondrial COII Gene Sequences
【24h】

Phylogeography of the Brackish Water Clam Corbicula japonica Around the Japanese Archipelago Inferred from Mitochondrial COII Gene Sequences

机译：从线粒体COII基因序列推断日本群岛周围咸淡水蛤Cor的系统地理学

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We investigated the phylogeography of the Asian brackish water clam, Corbicula japonica, to clarify its demographic history using partial mitochondrial COII gene sequences (990 bp) from 283 individuals collected from around the Japanese archipelago and adjacent areas. Phylogenetic analyses revealed the presence of two major groups within our samples: monophyletic Group I comprising Lineages A-E of C. japonica and paraphyletic Group II consisting of Corbicula sp. Lineages A-C were distributed in Japan and Sakhalin Island, and Lineages D, E, and Corbicula sp. were distributed in the Korean Peninsula. Nested clade analysis (NCA) revealed that Lineage A-the dominant lineage in Japan-consisted of Pacific and Japan Sea lineages, the latter comprising southern and northern Japan Sea groups. Genetic diversity indices of the southern group were higher than those of the northern group, suggesting historical range expansion in the Sea of Japan from southwest to northeast. Geographical distribution of these genetic groups appears to have been influenced by major ocean currents around the Japanese archipelago. Dominant haplotypes in the star-shaped haplotype network of Lineage A were distributed throughout the entire distribution range of each genetic group, implying rapid range expansion of this species. The results of mismatch distribution analysis and molecular clock estimation suggest that expansion of lineage A occurred during the late Middle or Late Pleistocene. In contrast, restricted or past gene flow suggested by NCA and the many unique haplotypes (110/123; 89.4%) present in Lineage A suggest that gene flow among extant populations is rather limited.
机译：我们调查了亚洲半咸水蛤Cor的Corphycula japonica的系统地理学，以使用线粒体COII基因的部分序列（990 bp）从日本群岛及附近地区收集的283条个体中阐明其种群历史。系统发育分析表明，我们的样品中存在两个主要的组：包括日本粳稻的A-E系的单系I组和由Corbicula sp。组成的副系统II组。 A-C世系分布在日本和萨哈林岛，D，E和Corbicula sp。世系。分布在朝鲜半岛。巢式进化枝分析（NCA）显示，谱系A-日本的主要谱系由太平洋和日本海谱系组成，后者由日本海南部和北部组成。南部群体的遗传多样性指数高于北部群体，表明日本海的历史范围从西南向东北扩展。这些遗传群体的地理分布似乎受到日本群岛周围主要洋流的影响。世系A星形单倍型网络中的优势单倍型分布在每个遗传群体的整个分布范围内，这意味着该物种的范围迅速扩大。错配分布分析和分子时钟估计的结果表明，世系A的扩展发生在中晚更新世晚期。相比之下，NCA提出的受限制或过去的基因流以及沿袭A的许多独特单倍型（110/123; 89.4％）提示，现有种群之间的基因流相当有限。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号