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Karyological differentiation between two species of mustelids mustela erminea nippon and meles meles anakuma



Karyological differentiation between two species of mustelids mustela erminea nippon and meles meles anakuma



Zoological Science 4(1): 87-92



The karyotypes of the Japanese badger, Meles meles anakuma, were presented using conventional and differential staining. Its diploid number was 44, in accordance with Tsuchiya's observation. The sex determining system was XX for the female and XY for the male. Two of the five specimens studied herein carried a heteromorphic autosomal pair (B6) which was considered to have been produced by a deletion of G-positive block. The banded chromosomes of the badger were compared with those of the Japanese ermine, Mustela erminea nippon, with the aim of defining karyological differentiation between these two remotely related mustelids which belong to different subfamilies. Melinae or Mustelinae, respectively. A low grade of G-band homology was found beween them, in agreement with a marked dissimilarity in their chromosome length hardly showed any G-band homology between the species. The phylogenetic relationships of the Japanese mustelids were briefly discussed, introducing karyosystematic evaluation into the former taxonomic system.

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Accession: 005777300

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