SPERM NUCLEI ANALYSIS OF A ROBERTSONIAN T(14Q21Q) CARRIER, BY FISH, USING 3 PLASMIDS AND 2 YAC PROBES

被引:69
作者
ROUSSEAUX, S
CHEVRET, E
MONTEIL, M
COZZI, J
PELLETIER, R
DELAFONTAINE, D
SELE, B
机构
[1] GRENOBLE UNIV,SCH MED,ALBERT BONNIOT INST,DYOGEN,REPROD BIOL UNIT,F-38706 LA TRONCHE,FRANCE
[2] BOUCICAULT HOSP,F-75015 PARIS,FRANCE
关键词
D O I
10.1007/BF00210294
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
The meiotic segregation of chromosomes 14 and 21 was analysed in 1116 spermatozoa from an oligo-asthenospermic carrier of a Robsertsonian translocation t(14q21q), and in 16 392 spermatozoa from a control donor, using two-colour fluorescence in situ hybridisation (FISH). Two YAC probes (cloned in yeast artificial chromosomes) specific for regions on the long arms of these chromosomes were co-hybridised. Of the spermatozoa, 12% were unbalanced, resulting from adjacent segregations. Chromosomes X, Y and 1 were also simultaneously detected in 1335 spermatozoa from the same carrier. Whereas gonosomal disomy rates were not significantly different from those of the control donors, disomy 1 were slightly but significantly increased to 0.7%. The diploidy rate was also slightly increased to approximately 1% in the translocation carrier.
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页码:655 / 660
页数:6
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