人群中Y染色体大小与常染色体q异染色质数量的关系。

Cytobios Pub Date : 2000-01-01
A I Ibraimov, G O Karagulova, E Y Kim
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引用次数: 0

摘要

研究了人群常染色体q -异染色质区变异与Y染色体Q-HR区变异的基本数量特征之间的关系。在群体水平上,个体平均Q-HR数、常染色体上Q-HR的分布和频率与Y染色体q -异染色质片段的大小存在一定的关系。Y染色体上q -异染色质片段较大的个体常染色体Q-HR的数量较低,反之亦然。讨论了现代人类基因组中染色体Q-HR数量可能受自然选择控制的假设。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The relationship between the Y chromosome size and the amount of autosomal Q-heterochromatin in human populations.

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.

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