Unusual heteromorphic bivalents in the common vole ( Microtus arvalis) from Belorussia

Electron microscopic analysis was carried out on the synaptonemal complexes of 10 male common voles ( Microtus arvalis) caught in 1990 in Belorussia. In the early pachytene stage of spermatocytes of four males, a heteromorphic bivalent has been found in one of five large autosomes. In the central re...

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Bibliographic Details
Published in:Cytogenetic and Genome Research
Main Authors: Borodin, P.M., Rodionova, M.I., Sablina, O.V., Gorlov, I.P.
Format: Article in Journal/Newspaper
Language:English
Published: S. Karger AG 1992
Subjects:
Common vole
Microtus arvalis
Online Access:http://dx.doi.org/10.1159/000133320
https://www.karger.com/Article/Pdf/133320
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Summary:Electron microscopic analysis was carried out on the synaptonemal complexes of 10 male common voles ( Microtus arvalis) caught in 1990 in Belorussia. In the early pachytene stage of spermatocytes of four males, a heteromorphic bivalent has been found in one of five large autosomes. In the central region of the bivalent one of the lateral elements is in the form of a D-loop, characteristic of insertion/deletion heterozygotes. However, high-resolution G-band staining of mitotic chromosomes from fibroblasts shows no significant differences in the G-band pattern between homologs.

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