Abstract
The chiasmatic association of the heteromorphic sex chromosomes in the spermatocytes of the Chinese hamster was observed in squash and/or air-dried preparations. The pairing arm of the Y was invariably its short arm. Although the X in diakinesis did not show distinct long and short arm as in mitotic metaphase, the DNA replication patterns of the sex chromosomes in spermatogonia suggested that the distal segment of the long arm of the X is homologous to the short arm of the Y.
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Evans, E. P., G. Breckon, and C. E. Ford: An air-drying method for meiotic preparations from mammalian testes. Cytogenetics 3, 289–294 (1964).
Fredga, K., and B. Santesson: Male meiosis in the Syrian, Chinese, and European hamsters. Hereditas (Lund) 52, 36–48 (1964).
Hsu, T. C., and M. T. Zenzes: Mammalian chromosomes in vitro. XVII. Idiogram of the Chinese hamster. J. nat. Cancer Inst. 32, 857–869 (1964).
Husted, L., E. G. Pollock, and G. C. Smart: The sex bivalent of the Chinese hamster (Cricetulus griseus). Virginia J. Sci. 8, 121–127 (1957).
Matthey, R.: Les bases cytologique de l'hérédité ≪relativement≫ liée au sexe chez les mammifères. Experientia (Basel) 13, 341–346 (1957).
Ohno, S., and C. Weiler: Relationship between large Y-chromosome and side-by-side pairing of the XY-bivalent observed in the Chinese hamster, Cricetulus griseus. Chromosoma (Berl.) 13, 106–110 (1962).
Utakoji, T., and T. C. Hsu: DNA replication patterns in somatic and germ-line cells of the male Chinese hamster. Cytogenetics 4, 295–315 (1965).
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Utakoji, T. On the homology between the X and the Y chromosomes of the Chinese hamster. Chromosoma 18, 449–454 (1966). https://doi.org/10.1007/BF00332548
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DOI: https://doi.org/10.1007/BF00332548