| 河南两产地日本三角涡虫的染色体和核型多样性分析 |
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| 引用本文： | 陈广文,董自梅,武丽敏,田士瑞,刘德增.河南两产地日本三角涡虫的染色体和核型多样性分析[J].河南师范大学学报(自然科学版),2011,39(1):146-149. |
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| 作者姓名： | 陈广文 董自梅 武丽敏 田士瑞 刘德增 |
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| 作者单位： | 1. 河南师范大学,生命科学学院,河南,新乡,453007
2. 河南师范大学,生命科学学院,河南,新乡,453007;黑龙江省科学院,自然资源研究所,哈尔滨,150031 |
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| 基金项目： | 国家自然科学基金，教育部高等学校博士点基金，河南省杰出青年基金，河南省创新人才基金 |
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| 摘 要： | 利用空气干燥法对采自河南省桐柏县西小河和三里岔村两产地日本三角涡虫(Dugesia japonica)的染色体和核型进行了研究,结果表明:日本三角涡虫西小河种群的体细胞中染色体数目以16条为主,少数为24条和25条,分别占86.67%、6.07%和7.26%,染色体基数为8,为2倍体、3倍体和3倍性非整倍体的混合体,核...
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| 关 键 词： | 日本三角涡虫 染色体 核型 河南 |
Diversity of Chromosome and Karyotype of the Dugesia japonica from Henan Province, China |
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| CHEN Guang-wen,DONG Zi-mei,WU Li-min,TIAN Shi-rui,LIU De-zeng.Diversity of Chromosome and Karyotype of the Dugesia japonica from Henan Province, China[J].Journal of Henan Normal University(Natural Science),2011,39(1):146-149. |
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| Authors: | CHEN Guang-wen DONG Zi-mei WU Li-min TIAN Shi-rui LIU De-zeng |
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| Institution: | 1,2(1.College of Life Sciences,Henan Normal University,Xinxiang 453007,China;2.Institute of Natural Resources,Heilongjiang Academy of Sciences,Harbin 150040,China) |
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| Abstract: | The diversity of chromosome and karyotype of the freshwater planarians,Dugesia japonica,collected from xixiaohe and sanlicha village in Tongbai County,Henan Province is studied by air-drying method.The results show that Dugesia japonica collected from xixiaohe have the diploid chromosome number of 16 with a karyotype formula of 2n=2x=16=16m,the triploid that of 24 with one of 2n=3x=24=24m and aneuploidic triploid 2n=3x+1=25=24m+1.The percents of diploid,triploid and aneuploidic triploid cells are 86.67%,6.07% and 7.26%,respectively.Dugesia japonica collected from sanlicha village has the triploid(2n=3x=24=24m),the diploid(2n=2x=16=16m) and aneuploidic triploid(2n=3x+1=25=24m+1) cells and their percentages are 63.48%,13.91% and 9.56%,respectively.The chromosome and karyotype of Dugesia japonica from two populations show polymorphism. |
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| Keywords: | Dugesia japonica chromosome karyotype Henan |
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