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Issue:ISSN 1000-7083
          CN 51-1193/Q
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Your Position :Home->Past Journals Catalog->2008 Vol.27 No.5

Chromosome Studies on Freshwater Planarians (Dugesia sp.) from China( III)
Author of the article:MA Ke-shi1,2, CHEN Guang-wen1*, LIU De-zeng1
Author's Workplace:(1.College of Life Sciences, Henan Normal University, Xinxiang, Henan Province 453002, China; 2. College of Life Sciences, Zhoukou Normal University)
Key Words:Dugesia; chromosome; karyotype; China
Abstract:The chromosomes and karyotypes of the Dugesia sp. collected from four localities in China were analyzed using an air-drying method. The results showed that most Dugesia sp. collected from Shilong in Henan Province, Longquan in Zhejiang Province had a diploid chromosome number of 16 (2n=2x=16)very little of triploid, 24 chromosomes (2n=3x=24). Those from Makegou and Sanchagou in Shanxi Province had mostly triploid24 chromosomes (2n=3x=24), very little diploid, 16 chromosomes (2n=2x=16) and aneuploidic triploid, 25 chromosomes (2n=3x+1=25= 24+1SB).
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