PMID: 6975199Jan 1, 1981Paper

Chromosome banding in Amphibia. VI. BrdU-replication patterns in anura and demonstration of XX/XY sex chromosomes in Rana esculenta

Chromosoma
W Schempp, M Schmid

Abstract

A modified BrdU-Hoechst-Giemsa technique permitted the demonstration of easily reproducible replication patterns in the somatic chromosomes of Amphibia. These banding patterns allow for the first time a precise identification of all chromosomes and the analysis of the patterns of replication in the various stages of S-phase in Amphibia. Several possibilities for the use of this technique were demonstrated on three frog species of the family Ranidae, all differing greatly in their DNA-content. With this method, the homomorphic chromosome pair No. 4 in Rana esculenta could be identified as sex-specific chromosomes of the XX/XY-type. All male animals exhibit an extremely late replicating region in the Y-chromosome, which is lacking in the X-chromosome in the female animals, both X-chromosomes replicate synchronously. These sex-specific chromosomes cannot be distinguished by other banding techniques. In the highly heteromorphic ZZ/ZW-sex chromosome system of Pyxicephalus adspersus a synchronous replication of the two Z-chromosomes of male animals and a very late replication of the short arm of the W-chromosomes of male animals was demonstrated. These results support the assumption that there is no dosage compensation for Z-linked o...Continue Reading

References

Dec 6, 1976·Chromosoma·L SinghK W Jones
Dec 1, 1973·Proceedings of the National Academy of Sciences of the United States of America·S A Latt
Jan 1, 1980·Cytogenetics and Cell Genetics·B M BiedermanC C Lin

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Citations

Aug 1, 1990·Biological Reviews of the Cambridge Philosophical Society·E Jablonka, M J Lamb
Sep 1, 1996·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·C C Cuevas, J R Formas
Aug 7, 2019·BMC Evolutionary Biology·Sylvain DubeyChristophe Dufresnes
Jul 11, 2006·Cytogenetic and Genome Research·G P Holmquist, T Ashley
Apr 9, 2008·Sexual Development : Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation·I Miura
Apr 1, 1995·Genome Génome / Conseil National De Recherches Canada·P HerreroA T Sumner
Sep 21, 2016·Sexual Development : Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation·Stéphane Flament
Sep 19, 2017·Comparative Cytogenetics·Anna ZaleśnaMaria Ogielska
Jun 1, 1989·Journal of Molecular Evolution·G P Holmquist
Dec 1, 1998·Evolution; International Journal of Organic Evolution·Mahmood M SasaNorman A Johnson
Jun 12, 2020·PloS One·Pablo SuárezJulio C Pieczarka
Nov 1, 1982·Cell·G HolmquistJ Jordan
Jul 27, 2021·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Matthias StöckKarel Janko

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