Abstract

The diversity, phylogenetic relationships, and demographic history of glacial relict copepod Limnocalanus macrurus from estuaries of large Siberian Arctic rivers (the Ob, Khatanga, Lena, Indigirka, and Kolyma) are studied using mitochondrial cytochrome oxidase subunit I gene (COI mtDNA). It is shown that Siberian populations of Limnocalanus macrurus, together with those from the Canadian Arctic and Baltic Sea, belong to a single Palearctic phylogenetic lineage, which probably survived in one refugium during the Last Glacial Maximum and then rapidly expanded within the Arctic about 21 000–7500 years ago. The presence of common haplotypes in L. macrurus from three Arctic seas and the lack of differences in haplotype frequencies may be associated with recent origin of populations or current gene flow between them.

中文翻译：

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俄罗斯北极海Co足类小盲mn的遗传多样性

摘要

利用线粒体细胞色素氧化酶亚基I基因（COI mtDNA）研究了来自大型西伯利亚北极河（Ob，Khatanga，Lena，Indigirka和Kolyma）河口的re遗co足类Limnocalanus macrurus的多样性，系统发育关系和人口统计学历史。结果表明，西伯利亚的Limnocalanus macrurus种群与加拿大北极和波罗的海的种群属于单个古生物学的系统发育谱系，它们可能在最后一次冰河盛世期间仅在一个避难所中幸存下来，然后在北极约21 000个内迅速扩展。 –7500年前。L. macrurus中常见单倍型的存在 来自三个北极海的区域，单倍型频率缺乏差异可能与最近的种群起源或它们之间的当前基因流有关。