EVOLUTION OF PERICENTROMERIC HETEROCHROMATIN OF HUMAN X-CHROMOSOME

被引:0
|
作者
LUKE, S [1 ]
MATHEWS, T [1 ]
VERMA, RS [1 ]
机构
[1] SUNY HLTH SCI CTR,LONG ISL COLL HOSP,DIV GENET,BROOKLYN,NY 11201
关键词
X-CHROMOSOME; HETEROCHROMATIN; HETEROMORPHISM; ALUI-GIEMSA BANDING; C-BANDING;
D O I
10.1007/BF00128774
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
An unusual large heterochromatic segment around the pericentromeric region of the X-chromosome is reported. In normal circumstances, the pericentromeric region of the X-chromosome is negative by the restriction endonuclease AluI/Giemsa technique. However, this unusual X-chromosome was found to have AluI resistant (positive) chromatin. The evolution of extra heterochromatin is a postzygotic event as substantiated by the presence of a normal cell line.
引用
收藏
页码:63 / 64
页数:2
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