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Synaptonemal complexes in a tetraploid mouse spermatocyte

Authors
Journal
Experimental Cell Research
0014-4827
Publisher
Elsevier
Publication Date
Volume
108
Issue
2
Identifiers
DOI: 10.1016/s0014-4827(77)80060-8

Abstract

Summary Quadrivalents, represented by unique synaptonemal complex configurations, together with normal bivalents are observed for the first time in a mammalian tetraploid pachytene spermatocyte prepared by microspreading. The chromosomal axes (lateral elements) clearly demonstrate the switching of partners in the quadrivalents as predicted from classical cytogenetic theory. Tetraploid formation, possibly by nuclear fusion, must have occurred prior to meiotic prophase.

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