Introgressive Hybridization between Southern Asian Dolly Varden, Salvelinus curilus, and Northern Dolly Varden, S. malma malma, on Sakhalin Island
Introgressive Hybridization between Southern Asian Dolly Varden, Salvelinus curilus, and Northern Dolly Varden, S. malma malma, on Sakhalin Island
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萨哈林岛南亚 Dolly Varden、Salvelinus curilus 和北 Dolly Varden、S. malma malma 之间的渐渗杂交
DOI：
10.1134/s1022795421030145
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发表时间：
2021
影响因子：
0.6
通讯作者：
V Brykov
中科院分区：
文献类型：
--
作者：
S Yamamoto;K Morita;G Sahashi;K Maekawa;A Oleinik;E Bondar;V Brykov
摘要对亚洲南方红毛红点鲑和北方红毛红点鲑的遗传特征进行了研究。用线粒体（mt）和微卫星（ms）DNA标记检测了亚洲东北部和阿留申群岛的马马（malma malma）。基于mtDNA控制区单倍型的最大似然树显示了这些物种的两个支持良好的单系谱系，但在库页岛人群中发现的单倍型是两个mtDNA谱系的混合物。使用msDNA的贝叶斯聚类表明，所有来自萨哈林岛的个体都与S. curiluspopulations，无论他们的mtDNA单倍型。线粒体DNA和msDNA标记之间的不一致性为S. M.马尔马托斯curilus。二次接触冰后期殖民地从不同的避难所是一个合理的解释在库页岛检测到的渐渗杂交。
AbstractGenetic characteristics of the southern Asian Dolly Varden,Salvelinus curilus, and northern Dolly Varden,S. malma malma, in northeastern Asia and the Aleutian Islands were examined using mitochondrial (mt) and microsatellite (ms) DNA markers. The maximum-likelihood tree based on mtDNA control region haplotypes showed two well-supported monophyletic lineages for these species, but the haplotypes found in the Sakhalin Island populations were an admixture of the two mtDNA lineages. Bayesian clustering using msDNA indicated that all individuals from Sakhalin Island grouped with theS. curiluspopulations, regardless of their mtDNA haplotype. Incongruence between mtDNA and msDNA markers provided strong evidence of historical mtDNA introgression fromS. m. malmatoS. curilus. Secondary contact by postglacial colonization from different refugia is a plausible explanation for the introgressive hybridization detected in Sakhalin Island.