title: [A rare variant of chromosome 1 in the house mouse: the presence of 2 supernumerary heterochromatin segments].
abstract: An abnormal chromosome 1 with two extra interstitial heterochromatin segments was found in the karyotype of a house mouse from the Maritime Territory. Until recently, variants of the abnormal chromosome 1 with the only extra C-block were known in house mouse of some European populations. Sizes of the abnormal chromosome 1 in a house mouse of the Maritime Territory are increased almost by 50%, in comparison with the normal homologue. C-banding showed that extra segments were localized in the area of D and F segments of the standard karyotype in house mouse, and stained homogeneously.
authors: L V
authors: LV
authors: Iakimenko
authors: K V
authors: KV
authors: Korobitsyna
mesh_terms: D000818:Animals; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D014644:Genetic Variation; D006570:Heterochromatin / Q000235:genetics*; D007621:Karyotyping; D008297:Male; D051379:Mice / Q000235:genetics*; D012800:Siberia
chemical_list: D006570:Heterochromatin
vernacular_title: Redkiĭ variant khromosomy 1 u domovoĭ myshi: nalichie dvukh dopolnitel'nykh geterokhromatinovykh segmentov.