title: Karyotypes of six soricomorph species from Emei Shan, Sichuan Province, China.
abstract: 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.
authors.affiliation: The Kyoto University Museum, Kyoto 606-8501, Japan. motokawa@inet.museum.kyoto-u.ac.jp
authors.forename: Masaharu
authors.initials: M
authors.lastname: Motokawa
authors.forename: Yi
authors.initials: Y
authors.lastname: Wu
authors.forename: Masashi
authors.initials: M
authors.lastname: Harada
mesh_terms: D000818:Animals; D002681:China; D007312:Eulipotyphla / Q000145:classification* / Q000235:genetics*; D007621:Karyotyping; D013045:Species Specificity