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Issue:ISSN 1000-7083
          CN 51-1193/Q
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Your Position :Home->Past Journals Catalog->2006 Vol.25 No.1

A Karyotypic Study on Polypedates dugritei and P. zhaojuensis with Discussion on Their Taxonomic Status
Author of the article:LI Jia-tang1, WU Guan-fu2, ZHAO Er-mi1,2
Author's Workplace:(1.Key Laboratory for Bio-resources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610064; 2.Chengdu Institute of Biology, Chinese Academy of Sciences)
Key Words:Polypedates dugritei; Polypedates zhaojuensis; Polypedates hui; karyotype; secondary constriction; Ag-NORs
Abstract:Baoxing population (topotypes, ineluding maculated and un-maculated individuals) Mt. Dawa population, Mt. Wawu population of Polypedates dugritei David, 1872, as well as Zhaojue population (topotypes) of Polypedates zhaojuensis Wu and Zeng, 1994, totally 52 specimens were selected for karyological studies, including karyotype and Ag-NORs. The authors came to the conclusion in three points. The karyotype, secondary constriction and Ag-NORs of the topotypes of Polypedates dugritei were reported the first time. The result of the un-maculated individuals is the same as the maculated ones. Baxed on this result, a supplementary description of patterns of the species is given. Based on karyological investigation of topotypes of Polypedates zhaojuensis, the authors came to the same conclusion as Wu and Zeng (1994) had done. Although Polypedates zhaojuensis has similar morphological features as P. dugritei, but these two species are distinctly different in karyological characters. That is to say P. zhaojuensis being a valid species. Under the “Law of Priority”the name Polypedates zhaojuensis Wu and Zeng, 1994 should be a junior synonym of P. hui (Liu, 1945). Therefore, the authors re-validate the scientific name as Polypedates hui (Liu, 1945), which was named by C. C. Liu in 1945 based on types from Yanwotang of Zhaojue County, the place less than four point five kilometers in straight distance only from the Qiliba of the same county. In view that Polypedates dugritei has a wide distribution, the authors suggest that it is necessary to study more populations of the same species, even related species in clarifying the classification of the genus Polypedates.
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