Abstract

This work presents the results of morphological and genetic analyses of the sympatric forms/species of whitefishes of the Coregonus lavaretus pidschian (Coregonus pidschian) complex from Lake Kutaramakan of the Khantaisk drainage system (Taymyr Peninsula). It is found that the studied whitefish forms/species do not differ in the number of gill rakers on the first branchial arch, but are well distinguished by the number of perforated lateral line scales, most morphometric characters, and biological features. Analysis of variability of the mitochondrial ND1 gene shows that whitefishes from Lake Kutaramakan belong to two different phylogenetic lineages which were earlier found in water bodies of the Taymyr Peninsula, the Ob, Yenisei, and Anabar rivers. It is shown that some whitefish haplotypes belong to pidschian-like whitefish from the Ob River basin and other haplotypes belong to glacial-plain whitefish C. lavaretus pidschian natio glacialis (C. lavaretus pidschianglacialis). Unlike whitefishes from the Anabar River, where such forms are strongly differentiated, there is considerable hybridization between the forms in Lake Kutaramakan.

中文翻译：

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Khantaisk排水系统（Taymyr半岛）的库塔拉坎坎湖的Coregonus lavaretus pidschian复合体的同伴白鲑的形态和遗传变异

摘要

这项工作介绍了来自汉塔伊克排水系统（塔伊米尔半岛）库塔拉马坎湖的岩gon（Coregonus pidschian）群白鲑的同养形态/物种的形态和遗传分析结果。发现所研究的白鲑的形态/种类在第一个branch弓上的ill耙的数量没有差异，但是在穿孔的侧线鳞片的数量，大多数形态特征和生物学特征上有很好的区别。线粒体ND1的变异性分析该基因显示，来自库塔拉坎坎湖的白鲑属于两种不同的系统发育谱系，这些谱系最早出现在泰米尔半岛水体，鄂毕河，叶尼塞河和阿纳巴尔河中。结果表明，一些单倍型白鱼属于pidschian样白鱼从OB流域和其它单倍型属于冰平纹白鱼C. lavaretus pidschian NATIO冰川（C. lavaretus pidschian冰川）。与来自阿纳巴尔河的白鲑不同，在这种形式上有很强的区别，在库塔拉坎坎湖中的各种形式之间存在相当大的杂交。