Cytogenetical Studies on the Japanese Raccoon Dog. VII

Karyotype Analysis of 22 Specimens collected in Ishikawa, Yamaguchi, Osaka and Wakayama Prefectures, Japan

Abstract

The present paper deals with the karyotype analysis of 22 Japanese raccoon dogs collected in Ishikawa, Yamaguchi, Osaka and Wakayama prefectures, Japan. The basic chromosome number of these specimens is 2n=38, but the higher number of the chromosomes than the basic one has been observed in all specimens, because the B-chromosomes are included in all of them. Among the 22 specimens, the Robertsonian fission of one metacentric element has been observed in 3 specimens.