Taxonomic study of the water shrews Chimarrogale himalayica and C. platycephala

• Autorzy: Motokawa M. , Harada M. , Apin L. , Yasuma S. , Yuan S.L. , Lin L.K.
• Języki publikacji: EN

Abstrakty

EN

We investigated karyotypes, mitochondrial cytochromeb gene sequences, and cranial morphometries of the water shrewsChimarrogale himalayica (Gray, 1842) andC. platycephala (Temminck, 1842) (Insectivora, Soricidae). Karyotypes ofC. himalayica from Taiwan andC. platycephala are 2n=52 and FNa=100. Autosomes consisted of 21 large-to-small metacentric or submetacentric pairs, and 4 medium-to-small subtelocentric pairs. The X and Y chromosomes were medium submetacentric and small acrocentric, respectively. The karyotypes ofC. himalayica andC. platycephala were very similar. Secondary constrictions were observed in the largest metacentric pair in both species. In the 930 base-pairs of the cytochromeb gene,C. himalayica from Taiwan andC. platycephala diverged with 9.46% sequence difference; each species diverged fromC. phaeura with more than 14% sequence difference. The two speciesC. himalayica andC. platycephala were well distinguished by morphometric characters, but three subspecies ofC. himalayica were not clearly separated. We suggest thatC. platycephala be treated as a valid species and separated fromC. himalayica in Taiwan.

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 2006
• Tom: 51
• Numer: 2
• Opis fizyczny: p.215-223,fig.,ref.

Twórcy

autor

Motokawa M.

• The Kyoto University Museum, Kyoto 606-8501, Japan

autor

Harada M.

autor

Apin L.

autor

Yasuma S.

autor

Yuan S.L.

autor

Lin L.K.

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