ANALYSIS OF SYNAPTONEMAL COMPLEXES IN A HETEROZYGOUS HUMAN MALE CARRIER OF A RECIPROCAL TRANSLOCATION INVOLVING AN ACROCENTRIC CHROMOSOME - HETEROSYNAPSIS WITHOUT PREVIOUS HOMOSYNAPSIS

被引:6
|
作者
DEPERDIGO, A [1 ]
GABRIELROBEZ, O [1 ]
RUMPLER, Y [1 ]
机构
[1] UNIV STRASBOURG 1,FAC MED,INST EMBRYOL,11 RUE HUMANN,F-67085 STRASBOURG,FRANCE
关键词
D O I
10.1007/BF00209021
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Silver-stained synaptonemal complexes in surface-spread pachytene nuclei from an oligospermic man, heterozygous for a reciprocal translocation involving an acrocentric chromosome, were analyzed by electron microscopy. Contrary to the classically expected configuration, nonhomologous pairing was observed with asymetrical association of the lateral elements of the nonhomologous arms of the quadrivalents. A possible role of heterosynapsis in germ cell conservation is discussed.
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页码:602 / 606
页数:5
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