SATELLITES ON LONG Y CHROMOSOME ARM - A FAMILIAL Y/AUTOSOME TRANSLOCATION IN MAN

被引:34
作者
SCHMID, W
机构
[1] Universitats-Kinderklinik, Zürich
来源
CYTOGENETICS | 1969年 / 8卷 / 06期
关键词
D O I
10.1159/000130053
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
A proband girl was investigated because of a congenital heart defect and hexadactyly. Her brother and sister died in early infancy from cardiac malformations. In the patient, satellites were found on a chromosome No. 17 in 34% of cultured lymphocytes. The same cytological anomaly was discovered in the karyotype of her normal father. In addition, this man possessed a Y chromosome with satellites at the end of the long arm. The same satellited Y was demonstrated in the paternal grandfather and the abnormal No. 17 in the paternal grandmother. The satellited Y chromosome was found associated with group D and G chromosomes in over 30% of the metaphascs in both men, strongly indicating a true nucleolar-organizing region and, therefore, a translocation from an autosome. Only a few associations were noted for the abnormal No. 17, where the appearance of satellites is probably due to a secondary constriction of a different nature. The identification of the two abnormal chromosomes was confirmed by autoradiography. A direct pathogenic significance of these structural anomalies is questionable. © 1969 S. Karger AG, Basel.
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页码:415 / &
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