title: Chromosomal Q-heterochromatin regions in the indigenous population of the northern part of West Siberia and in new migrants.
abstract: The variability of Q-heterochromatin regions (Q-HR) was studied in native residents of the northern part of West Siberia, viz Yakuts (n = 127), Selkups (n = 90) and Khants (n = 54), as well as in newcomers including oil-borers (n = 43) and children (n = 113) living permanently in this part of the USSR. The major quantitative characteristics of chromosomal Q-HR variability were shown to be very similar in oil-borers and natives, and this is considered to be the result of specific selection of individuals according to the amount of Q-HRs in their genome. The hypothesis on the possible selective value of chromosomal Q-HRs in human adaptation to extreme environmental conditions of the extreme north is discussed.
authors.affiliation: Laboratory of Human Genetics, Kirghiz Institute of Cardiology, Frunze, USSR.
authors.forename: A I
authors.initials: AI
authors.lastname: Ibraimov
authors.forename: E I
authors.initials: EI
authors.lastname: Aksenrod
authors.forename: G U
authors.initials: GU
authors.lastname: Kurmanova
authors.forename: O A
authors.initials: OA
authors.lastname: Turapov
mesh_terms: D000222:Adaptation, Physiological; D000328:Adult; D002648:Child; D003081:Cold Climate; D004641:Emigration and Immigration; D005260:Female; D014644:Genetic Variation; D006570:Heterochromatin; D006801:Humans; D008297:Male; D012800:Siberia
chemical_list: D006570:Heterochromatin