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B Chromosome System in the Korean Field Mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae)

In this paper, we analyzed B chromosome variation in Korean field mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae) based on a 40-year study of karyotypes collected from geographically distant populations in East Siberia, North Mongolia, China, the Russian Far East, and Japan (Hokkaido). We...

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Autores principales: Borisov, Yuri M., Zhigarev, Igor A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210764/
https://www.ncbi.nlm.nih.gov/pubmed/30262791
http://dx.doi.org/10.3390/genes9100472
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author Borisov, Yuri M.
Zhigarev, Igor A.
author_facet Borisov, Yuri M.
Zhigarev, Igor A.
author_sort Borisov, Yuri M.
collection PubMed
description In this paper, we analyzed B chromosome variation in Korean field mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae) based on a 40-year study of karyotypes collected from geographically distant populations in East Siberia, North Mongolia, China, the Russian Far East, and Japan (Hokkaido). We developed the database of individual variants of B chromosome systems in A. peninsulae. In Siberian populations all animals had Bs. The karyotypes of the studied animals contain from 1 to 30 Вs differing in size and morphology. Analysis of B chromosome systems in 598 individuals from different localities of the range shows the presence of 286 variants of Вs combinations in these animals. Unique sets of B morphotypes make up most of these variants (64.7 ± 1.3%), probably suggesting that individual Bs systems normally result from stochastic processes in the populations. The proportion of animals with a large number of Bs gradually decreases, probably due to increased complexities in the inheritance of large numbers of Bs. A. peninsulae is thus proposed as a good model for studying the origin and evolution of extra elements in the karyotype.
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spelling pubmed-62107642018-11-02 B Chromosome System in the Korean Field Mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae) Borisov, Yuri M. Zhigarev, Igor A. Genes (Basel) Article In this paper, we analyzed B chromosome variation in Korean field mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae) based on a 40-year study of karyotypes collected from geographically distant populations in East Siberia, North Mongolia, China, the Russian Far East, and Japan (Hokkaido). We developed the database of individual variants of B chromosome systems in A. peninsulae. In Siberian populations all animals had Bs. The karyotypes of the studied animals contain from 1 to 30 Вs differing in size and morphology. Analysis of B chromosome systems in 598 individuals from different localities of the range shows the presence of 286 variants of Вs combinations in these animals. Unique sets of B morphotypes make up most of these variants (64.7 ± 1.3%), probably suggesting that individual Bs systems normally result from stochastic processes in the populations. The proportion of animals with a large number of Bs gradually decreases, probably due to increased complexities in the inheritance of large numbers of Bs. A. peninsulae is thus proposed as a good model for studying the origin and evolution of extra elements in the karyotype. MDPI 2018-09-27 /pmc/articles/PMC6210764/ /pubmed/30262791 http://dx.doi.org/10.3390/genes9100472 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Borisov, Yuri M.
Zhigarev, Igor A.
B Chromosome System in the Korean Field Mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae)
title B Chromosome System in the Korean Field Mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae)
title_full B Chromosome System in the Korean Field Mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae)
title_fullStr B Chromosome System in the Korean Field Mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae)
title_full_unstemmed B Chromosome System in the Korean Field Mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae)
title_short B Chromosome System in the Korean Field Mouse Apodemus peninsulae Thomas 1907 (Rodentia, Muridae)
title_sort b chromosome system in the korean field mouse apodemus peninsulae thomas 1907 (rodentia, muridae)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210764/
https://www.ncbi.nlm.nih.gov/pubmed/30262791
http://dx.doi.org/10.3390/genes9100472
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