title: The relationship between the Y chromosome size and the amount of autosomal Q-heterochromatin in human populations.
abstract: The relationship between the basic quantitative characteristics of the Q-heterochromatin (Q-HR) region variability of autosomes and of the Y chromosome in human populations was examined. A definite relationship between the mean number of Q-HR per individual, the distribution and frequencies of Q-HR on autosomes and the size of the Q-heterochromatin segment of the Y chromosome at the population level was shown to exist. The amount of autosomal Q-HR was lower in individuals with larger Q-heterochromatin segments on Y chromosomes, and vice versa. The hypothesis that the amount of chromosomal Q-HR in the genome of modern human populations may be under the control of natural selection, is discussed.
authors.affiliation: Laboratory of Human Genetics, National Center of Cardiology and Internal Medicine, Kyrghyzstan, C.I.S.
authors.forename: A I
authors.initials: AI
authors.lastname: Ibraimov
authors.forename: G O
authors.initials: GO
authors.lastname: Karagulova
authors.forename: E Y
authors.initials: EY
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000328:Adult; D000349:Africa; D001208:Asia; D044466:Asian People / Q000235:genetics; D044383:Black People / Q000235:genetics; D002648:Child; D005060:Europe; D005828:Genetics, Population; D015894:Genome, Human; D006570:Heterochromatin; D006801:Humans; D008297:Male; D044469:Racial Groups / Q000235:genetics*; D012641:Selection, Genetic; D044465:White People / Q000235:genetics; D014998:Y Chromosome
chemical_list: D006570:Heterochromatin