scholarly journals Spatial organization of fibroblast and spermatocyte nuclei with different B-chromosome content in Korean field mouse, Apodemus peninsulae (Rodentia, Muridae)

Genome ◽  
2017 ◽  
Vol 60 (10) ◽  
pp. 815-824 ◽  
Author(s):  
Tatyana V. Karamysheva ◽  
Anna A. Torgasheva ◽  
Yaroslav R. Yefremov ◽  
Anton G. Bogomolov ◽  
Thomas Liehr ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Spatial Organization ◽  
Constitutive Heterochromatin ◽  
B Chromosome ◽  
B Chromosomes ◽  
Laser Scanning Microscopy ◽  
Field Mouse ◽  
Apodemus Peninsulae ◽  
Basic Set ◽  
Korean Field Mouse

Korean field mouse (Apodemus peninsulae) shows a wide variation in the number of B chromosomes composed of constitutive heterochromatin. For this reason, it provides a good model to study the influence of the number of centromeres and amount of heterochromatin on spatial organization of interphase nuclei. We analyzed the three-dimensional organization of fibroblast and spermatocyte nuclei of the field mice carrying a different number of B chromosomes using laser scanning microscopy and 3D fluorescence in situ hybridization. We detected a co-localization of the B chromosomes with constitutive heterochromatin of the chromosomes of the basic set. We showed a non-random distribution of B chromosomes in the spermatocyte nuclei. Unpaired B chromosomes showed a tendency to occur in the compartment formed by the unpaired part of the XY bivalent.

B chromosomes of Korean field mouse Apodemus peninsulae (Rodentia, Murinae) analysed by microdissection and FISH

2002 ◽  
Vol 96 (1-4) ◽  
pp. 154-160 ◽  
Author(s):  
T.V. Karamysheva ◽  
O.V. Andreenkova ◽  
M.N. Bochkaerev ◽  
Y.M. Borissov ◽  
N. Bogdanchikova ◽  
...  
Keyword(s):  
B Chromosomes ◽  
Field Mouse ◽  
Apodemus Peninsulae ◽  
Korean Field Mouse

Features of the B chromosome in Korean field mouse Apodemus peninsulae (Thomas, 1906) from Transbaikalia and the Far East identified by the FISH method

2015 ◽  
Vol 51 (3) ◽  
pp. 278-288 ◽  
Author(s):  
N. B. Rubtsov ◽  
I. V. Kartavtseva ◽  
G. V. Roslik ◽  
T. V. Karamysheva ◽  
M. V. Pavlenko ◽  
...  
Keyword(s):  
Far East ◽  
B Chromosome ◽  
Field Mouse ◽  
Fish Method ◽  
Apodemus Peninsulae ◽  
The Far East ◽  
Korean Field Mouse

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

Genes ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 472 ◽  
Author(s):  
Yuri Borisov ◽  
Igor Zhigarev
Keyword(s):  
Russian Far East ◽  
Far East ◽  
B Chromosome ◽  
Field Mouse ◽  
Origin And Evolution ◽  
Apodemus Peninsulae ◽  
Large Numbers ◽  
Size And Morphology ◽  
Korean Field Mouse ◽  
The Russian Far East

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.

Body temperature profiles of the Korean field mouse Apodemus peninsulae during winter aggregation

Mammal Study ◽  
2005 ◽  
Vol 30 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Mika Masaki ◽  
Chihiro Koshimoto ◽  
Kimiyuki Tsuchiya ◽  
Aya Nishiwaki ◽  
Tetsuo Morita
Keyword(s):  
Body Temperature ◽  
Temperature Profiles ◽  
Field Mouse ◽  
Apodemus Peninsulae ◽  
Korean Field Mouse
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