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1 November 2009 Karyotypes of Six Soricomorph Species from Emei Shan, Sichuan Province, China
Masaharu Motokawa, Yi Wu, Masashi Harada
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We report the karyotypes of six species of the order Soricomorpha (Mammalia), based on specimens collected from Emei Shan (Mount Emei) in central Sichuan Province, China: two talpid species, Uropsilus andersoni (diploid chromosome number [2n]=34, fundamental number of chromosome arms including two X chromosomes [FN]=56) and Scaptonyx fusicaudus (2n=34, FN=64); and four soricid species, Episoriculus sacratus (2n=58, FN=108), Anourosorex squamipes (2n=48, FN=96), Sorex cylindricauda (2n=30, FN=50), and Sorex bedfordiae (2n=24/25, FN=46/48). This is the first report of the karyotypes of all species except Sc. fusicaudus and A. squamipes. Episoriculus sacratus is considered to be a valid species in Sichuan, separated from the Nepalese E. soluensis based on differences in the karyotype. The karyotype of S. bedfordiae showed polymorphism due to the occurrence of a B chromosome. Differences in the karyotypes of S. cylindricauda and S. bedfordiae could be explained mostly by seven Robertsonian translocations revealed by G-band karyotypes.

© 2009 Zoological Society of Japan
Masaharu Motokawa, Yi Wu, and Masashi Harada "Karyotypes of Six Soricomorph Species from Emei Shan, Sichuan Province, China," Zoological Science 26(11), 791-797, (1 November 2009).
Received: 21 May 2009; Accepted: 20 July 2009; Published: 1 November 2009
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