Poplavskaya N S, Lebedev V S, Bannikova A A, Belokon M M, Belokon Yu S, Pavlenko M V, Korablev V P, Kartavtseva I V, Bazhenov Yu A, Surov A V
Genetika. 2017 Jan;53(1):63-78.
We examine the diversity of six microsatellite loci and partial RAG1 exon of “barabensis” and “pseudogriseus” karyoforms in Cricetulus barabensis sensu lato species complex. A total of 435 specimens from 68 localities ranging from Altai to the Far East are investigated. The results of the population structure analysis (factor analysis and NJ tree based on Nei genetic distances) support subdivision into two well-differentiated clusters corresponding to the two karyoforms. These karyoforms are also well differentiated by the level of microsatellite variability. In several “barabensis” specimens, we found microsatellite alleles that are common in “pseudogriseus” populations but are otherwise absent in “barabensis.” Most of these specimens originate from a single population in one of the zones of potential contact between karyoforms, Kharkhorin in Central Mongolia. These molecular results are consistent with previously published karyological data in suggesting that rare hybridization events between the two chromosomal races occur in nature.
我们研究了广义黑线仓鼠物种复合体中“黑线仓鼠”和“拟灰仓鼠”核型的六个微卫星位点及部分RAG1外显子的多样性。共调查了来自阿尔泰山脉至远东地区68个地点的435个标本。群体结构分析结果（基于内氏遗传距离的因子分析和NJ树）支持将其分为两个分化良好的聚类，分别对应两种核型。这两种核型在微卫星变异水平上也有明显差异。在一些“黑线仓鼠”标本中，我们发现了在“拟灰仓鼠”群体中常见但在“黑线仓鼠”中不存在的微卫星等位基因。这些标本大多来自两种核型潜在接触区域之一（蒙古中部的哈尔和林）的一个单一群体。这些分子结果与先前发表的核型数据一致，表明这两个染色体种族在自然界中发生罕见的杂交事件。
