[A new variant of chromosome 1 in the house mouse].
In wild mouse populations of Siberia, animals with a new variant of chromosome 1 were found. The total length of this chromosome was 1.3 times as great as the normal homologue. The G-banding technique revealed two additional insertions Is(HSR; 1C5)1Icg and Is(HSR; 1E3)2Icg located between bands 1C5 and 1D, and 1E3 and 1E4, resp. The C-banding of both the insertions was positive and lighter than that of the centromeric heterochromatin. The size of each insertion was approximately 15% of new variant of chromosome 1. No meiotic disturbances were found in heterozygous male mice. Chromosome 1 with insertions has been introduced into the laboratory mouse stock.
Agul'nik
S I
SI
Gorlov
I P
IP
Agul'nik
A I
AI
D000818:Animals; D000835:Animals, Wild; D002871:Chromosome Banding; D002875:Chromosomes / Q000648:ultrastructure*; D014644:Genetic Variation; D006579:Heterozygote; D007621:Karyotyping; D008297:Male; D008540:Meiosis; D051379:Mice / Q000235:genetics*; D012800:Siberia
Novyĭ variant 1-ĭ khromosomy u domovoĭ myshi.