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Analysis of synaptonemal complexes in a heterozygous human male carrier of a reciprocal translocation involving an acrocentric chromosome: heterosynapsis without previous homosynapsis

✍ Scribed by A. Perdigo; O. Gabriel-Robez; Y. Rumpler

Publisher: Springer
Year: 1991
Tongue: English
Weight: 702 KB
Volume: 87
Category: Article
ISSN: 0340-6717
DOI: 10.1007/bf00209021

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✦ Synopsis

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 asymmetrical 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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✍ A. Perdigo; O. Gabriel-Robez; C. Ratoinponirina; Y. Rumpler 📂 Article 📅 1991 🏛 Springer 🌐 English ⚖ 691 KB

Silver-stained synaptonemal complexes in surface-spread pachytene nuclei from a man, heterozygous for a reciprocal translocation, were analysed by electron microscopy. Contrary to the classically expected cross-shaped configuration, extensive non-homologous pairings were observed with asymetrical as