Unusual chromosomal polymorphism of the common shrew, Sorex araneus L., in southern Belarus.

IF 1 4区生物学 Q4 GENETICS & HEREDITY

Comparative Cytogenetics Pub Date : 2021-06-04 eCollection Date: 2021-01-01 DOI:10.3897/CompCytogen.v15.i2.63084

Iryna A Kryshchuk, Victor N Orlov, Elena V Cherepanova, Yury M Borisov

引用次数: 1

Abstract

Analysis of the frequency of karyotypes and chromosomal rearrangements in the distributional ranges of four metacentric races of Sorex araneus Linnaeus, 1758 has revealed features that are not typical for polymorphic populations of this species. The frequency of the acrocentric karyotype and heterozygotes for fusion of acrocentric chromosomes turned out to be significantly higher than expected in case of random crossing. As an explanation for the unusual polymorphism, it has been suggested that metacentric races may hybridize with acrocentric populations that remained from the ancient chromosomal form.

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白俄罗斯南部常见鼩鼱的异常染色体多态性。

对1758年4个异心小种的核型和染色体重排频率进行了分析，揭示了该物种多态群体所不具有的特征。结果表明，在随机杂交的情况下，单中心核型和单中心染色体融合的杂合子的频率显著高于预期。为了解释这种不寻常的多态性，有人提出，元中心种族可能与从古代染色体形态中保留下来的远中心群体杂交。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Comparative Cytogenetics 生物-遗传学

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Comparative Cytogenetics is a peer-reviewed, open-access, rapid online journal launched to accelerate research on all aspects of plant and animal cytogenetics, karyosystematics, and molecular systematics. All published papers can be freely copied, downloaded, printed and distributed at no charge for the reader. Authors are thus encouraged to post the pdf files of published papers on their homepages or elsewhere to expedite distribution. There is no charge for color.