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The Journal of Heredity 1984:75(2):144-144
© 1984 The American Genetic Association 75:144

other

Cream, a new coat-color mutant in the musk shrew

Rieko Iseki, Takao Namikawa, and Kyoji Kondo

Laboratory of Animal Genetics, Faculty of Agriculture, Nagoya University Furo-Cho, Chikusa-Ku, Nagoya 464,Japan

present address (for reprint requests): Department of Dermatology, Nagoya University School of Medicine. Tsuruma-Cho, Showa-Ku, Nagoya 466, Japan

Abstract

A coat-color mutant was found in the wild musk shrew (Suncus murinus, Insectivora). Five musk shrews with gray pelage, the common coat color of this species, were captured in the village of Tambum near Jakarta, Indonesia. Two males and two females were transported to Japan and mated. Matings between one male and two females segregated several cream-colored offspring, a color that had never been soon before in this species. From the pedigree record and data on mating experiments, it was confirmed that this mutant coat color was expressed in the homozygote by an autosomal recessive gene desigeated cr, and at least three of the four wild shrews examined were carriers of this gene. The cr gene was associated with failure of normal pigrnentation in the polage and skin. The mutant shrews also showed some behavioral abnormalities.


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