Notes on the chromosomes of four species of small mammals. (Chromosome studies in domestic mammals, V)

Makino, S.

J. Fac. Sci. Hokkaido Univ, Zool., 9: 345-357


Accession: 013772863

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THE 4 mammals studied were the silver fox (Vulpes vulpes), the Japanese mink (Mustela itatsi itatsi), the guineapig (Cavia cobaya), and the nutria (Myocastor coypus). The diploid number of chromosomes observed in the spermatogonial division in the silver fox was 38, and the haploid number observed in the primary spermatocyte division was 19. In the diploid complement, 33 chromosomes were atelomitic in structure, the remaining o being minute, grain-like elements.