B-chromosome systems in the pocket mouse, Perognathus baileyi: Meiosis and C-band studies
- 1 January 1977
- journal article
- research article
- Published by Springer Nature in Chromosoma
- Vol. 60 (1), 1-14
- https://doi.org/10.1007/bf00330406
Abstract
The heterochromatin characteristics and meiotic behavior of the B-chromosome system of the pocket mouse, Perognathus baileyi, are described. B-chromosomes are associated both with a meiotic accumulation mechanism and with an increase in average chiasma frequency in the A-chromosome set in males. Three morphological classes of B-chromosomes are recognizable, and the mechanisms of origin of each are discussed.Keywords
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