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1985•Proceedings of the Japan Academy Series BOpen access

Cytogenetical studies on insectivora. III. Karyotype comparison of two Crocidura species in Japan.

Masashi Harada, Tosihide H. YOSIDA, Shôsaku Hattori, Suehisa Takada

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Abstract

Karyotypes of two Japanese insectivorous species, Crocidura dsinezumi chisai (2n=40, FN=52) and C. horsfieldi watasei (2n=26, FN=48), are investigated by G- and C-banding pattern analysis. Based on the G-banding patterns it is suggested that the 7 meta- or submetacentric pairs observed in C. h. watasei have been developed by the Robertsonian fusion of 10 acrocentric pairs, and also the centromere-telomere translocations between two subtelocentric and acrocentric pairs included in the C. d. chisai karyotype.

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Karyotypes of two Japanese insectivorous species, Crocidura dsinezumi chisai (2n=40, FN=52) and C. horsfieldi watasei (2n=26, FN=48), are investigated by G- and C-banding pattern analysis. Based on the G-banding patterns it is suggested that the 7 meta- or submetacentric pairs observed in C. h. watasei have been developed by the Robertsonian fusion of 10 acrocentric pairs, and also the centromere-telomere translocations between two subtelocentric and acrocentric pairs included in the C. d. chisai karyotype.

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Available abstract

Karyotypes of two Japanese insectivorous species, Crocidura dsinezumi chisai (2n=40, FN=52) and C. horsfieldi watasei (2n=26, FN=48), are investigated by G- and C-banding pattern analysis. Based on the G-banding patterns it is suggested that the 7 meta- or submetacentric pairs observed in C. h. watasei have been developed by the Robertsonian fusion of 10 acrocentric pairs, and also the centromere-telomere translocations between two subtelocentric and acrocentric pairs included in the C. d. chisai karyotype.

Key concepts: Karyotype, Insectivora, Centromere, Biology, Shrew, Zoology, Evolutionary biology, Genetics

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