title: Ellobius lutescens Th. (Rhodentia, Microtinae): Q-, R-, and replication banding patterns. Chromosome 1 polymorphism in the male and presumptive heterogamety in the female.
abstract: Five specimens of Ellobius lutescens, four males and one female, were studied by several banding methods. Structural polymorphism occurred in the longest chromosome pair of the karyotype of two males: a pericentric inversion in one animal and a paracentric inversion in the other. In the female studied, one chromosome 1 differs from those of the males by a marked elongation of a proximal euchromatic band in the long arm. Thus, the female seems to represent the heterogametic sex. Chromosome 9 showed the same banding pattern in both sexes. The possible meaning of this chromosome constitution for the sex-determining mechanism of E. lutescens is discussed.
mesh_terms: D000818:Animals; D002871:Chromosome Banding; D007446:Chromosome Inversion; D002875:Chromosomes; D007312:Eulipotyphla / Q000235:genetics*; D005260:Female; D005838:Genotype; D008297:Male; D008971:Moles / Q000235:genetics*; D011110:Polymorphism, Genetic; D012727:Sex Characteristics; D014960:X Chromosome