Iryna A Kryshchuk, Victor N Orlov, Elena V Cherepanova, Yury M Borisov
{"title":"Unusual chromosomal polymorphism of the common shrew, <i>Sorex araneus</i> L., in southern Belarus.","authors":"Iryna A Kryshchuk, Victor N Orlov, Elena V Cherepanova, Yury M Borisov","doi":"10.3897/CompCytogen.v15.i2.63084","DOIUrl":null,"url":null,"abstract":"<p><p>Analysis of the frequency of karyotypes and chromosomal rearrangements in the distributional ranges of four metacentric races of <i>Sorex araneus</i> 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.</p>","PeriodicalId":50656,"journal":{"name":"Comparative Cytogenetics","volume":"15 2","pages":"159-169"},"PeriodicalIF":1.0000,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8195942/pdf/","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comparative Cytogenetics","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.3897/CompCytogen.v15.i2.63084","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2021/1/1 0:00:00","PubModel":"eCollection","JCR":"Q4","JCRName":"GENETICS & HEREDITY","Score":null,"Total":0}
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.
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.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
