Abstract
The X chromosome is the most outstanding element of the entire complement, but determination of the Y is somewhat equivocal, since several pairs of autosomes have similar morphology. From karyotypes of a large number of specimens, representing several subspecies, no variation (except the Y chromosome) was found. In some individuals, the Y chromosome may be smaller than the one presented here. However, because of the similarity of many chromosome pairs and the lack of distinct morphological grouping, minor variations in karyotype among subspecies may exist but are difficult to detect.
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References
Hsu, T.C. and Arrighi, F.E.: Chromosomal evolution in the genus Peromyscus (Cricetidae, Rodentia). Cytogenetics 5:355, 1966.
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© 1968 Springer Science+Business Media New York
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Hsu, T.C., Benirschke, K. (1968). Peromyscus eremicus (Cactus mouse). In: An Atlas of Mammalian Chromosomes. Springer, New York, NY. https://doi.org/10.1007/978-1-4615-6424-9_14
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DOI: https://doi.org/10.1007/978-1-4615-6424-9_14
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