Metaphase and meiotic chromosomes, synaptonemal complexes (SC) of the lizard Zootoca vivipara

Metaphase and meiotic chromosomes, synaptonemal complexes (SC) of the lizard Zootoca vivipara Somatic mitotic and meiotic chromosomes at the pachytene and at the metaphase I of the males of the viviparous lizard, Zootoca vivipara (Lichtenstein, 1823), from northwestern Russia, belonging to the Russian form of Z. v. vivipara, are examined. The spreading of synaptonemal complexes (SC) of their chromosomes are obtained and analyzed for the first time. Eighteen SC are observed, including SC of the Z1Z1 (pairs 5 or 6) and the Z2Z2 (pair 13) sex chromosomes. Characteristics of SC are compared with the number and the shape of bivalents and with those of the karyotype structure. In the studied Russian form of Z. v. vivipara, the length ratios of bivalents correlate with that of mitotic chromosomes (2n = 36); however, some specificity in the morphology of SC of the Z1Z1 sex chromosomes is reported in this article. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Metaphase and meiotic chromosomes, synaptonemal complexes (SC) of the lizard Zootoca vivipara

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Publisher
Pleiades Publishing
Copyright
Copyright © 2016 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795416110120
Publisher site
See Article on Publisher Site

Abstract

Somatic mitotic and meiotic chromosomes at the pachytene and at the metaphase I of the males of the viviparous lizard, Zootoca vivipara (Lichtenstein, 1823), from northwestern Russia, belonging to the Russian form of Z. v. vivipara, are examined. The spreading of synaptonemal complexes (SC) of their chromosomes are obtained and analyzed for the first time. Eighteen SC are observed, including SC of the Z1Z1 (pairs 5 or 6) and the Z2Z2 (pair 13) sex chromosomes. Characteristics of SC are compared with the number and the shape of bivalents and with those of the karyotype structure. In the studied Russian form of Z. v. vivipara, the length ratios of bivalents correlate with that of mitotic chromosomes (2n = 36); however, some specificity in the morphology of SC of the Z1Z1 sex chromosomes is reported in this article.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Nov 24, 2016

References

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