Abstract
These findings are based on 9 animals trapped in Vermont and New Hampshire, USA. All had similar karyotypes from blood, kidney and skin cultures. The karyotypes displayed here are from fibroblast cultures. The chromosomes are difficult to pair accurately. Some pairs of small autosomes and the two X chromosomes often differ in size. The short arm of the Y and the central portion of the X are late replicating. The long arm of the Y is latest to replicate. The length of the X is approximately 12%, and the Y, 6%, of the haploid set.
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References
Benirschke, K. and Kessler, D.: The chromosomes of the Canadian porcupine, Erethizon dorsatum. Mammalian Chromosomes Newsletter 8: 17, 1967.
Benirschke, K.: The chromosome complement of the North American porcupine, Erethizon dorsatum dorsatum L. J. Hered., in press.
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© 1968 Springer Science+Business Media New York
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Hsu, T.C., Benirschke, K. (1968). Erethizon dorsatum dorsatum (North American porcupine). In: An Atlas of Mammalian Chromosomes. Springer, New York, NY. https://doi.org/10.1007/978-1-4615-6424-9_22
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DOI: https://doi.org/10.1007/978-1-4615-6424-9_22
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