title: [Unusually high number of B-chromosomes and mosaicism among them in the Asiatic forest mouse Apodemus peninsulae (Rodentia, Muridae)].
abstract: Karyological analysis of Apodemus peninsulae from Western Siberia was made. It was established that animals under study are characterized both by interindividual variation of B-chromosome number or polymorphism which was described previously and by intraindividual variation or mosaicism. Diploid numbers are 55-57, 58-61, 61-65 and 68-72, i. e. studied animals possess 3, 4, 5 and 5 cell clones, respectively. The highest number of B-chromosomes in mammals was found to be 24.
mesh_terms: D000828:Animal Population Groups / Q000235:genetics*; D000818:Animals; D000835:Animals, Wild / Q000235:genetics*; D002875:Chromosomes / Q000648:ultrastructure*; D002999:Clone Cells; D004171:Diploidy; D005260:Female; D008297:Male; D051379:Mice / Q000235:genetics*; D009030:Mosaicism; D011110:Polymorphism, Genetic; D012800:Siberia
vernacular_title: Neobychno vysokoe chislo B-khromosom i mozaitsizm po nim u Aziatskoĭ lesnoĭ myshi Apodemus peninsulae (Rodentia, Muridae).