| 横断山风毛菊属狮芽风毛菊(Saussurea leontodontoides)的细胞学研究 |
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| 引用本文： | 张永增,杨丽娥,岳学坤,李志敏.横断山风毛菊属狮芽风毛菊(Saussurea leontodontoides)的细胞学研究[J].云南师范大学学报(自然科学版),2011,31(2):69-71,78. |
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| 作者姓名： | 张永增 杨丽娥 岳学坤 李志敏 |
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| 作者单位： | 云南师范大学生命科学学院,云南,昆明,650092 |
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| 基金项目： | 云南省自然科学基金重点资助项目(2008CC0013); 云南省级精品课程“植物学”项目 |
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| 摘 要： | 对风毛菊属的狮芽风毛菊(Saussurea leontodontoides(DC.)Hand.-Mazz.)采用根尖压片法进行了细胞学研究。研究结果表明:狮芽风毛菊为二倍体,染色体有32条,核型公式为2n=2x=32=2M+11m+2sm,核型不对称性为2B型。该研究结果为该种染色体数目和核型的首次报道。
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| 关 键 词： | 狮芽风毛菊 染色体数目 核型分析 |
The study on Cytology of Saussurea leontodontoides |
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| Zhang Yong-zeng,Yang Li-er,Yue Xue-kun,Li Zhi-min.The study on Cytology of Saussurea leontodontoides[J].Journal of Yunnan Normal University (Natural Sciences Edition),2011,31(2):69-71,78. |
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| Authors: | Zhang Yong-zeng Yang Li-er Yue Xue-kun Li Zhi-min |
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| Institution: | Zhang Yong-zeng,Yang Li-er,Yue Xue-kun,Li Zhi-min(Life Science School,Yunnan Normal University,Kunming 650092,China) |
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| Abstract: | In this paper,the chromosome numbers and karyotype of S.leontodontoides(DC.) Hand.-Mazz are studied by root tip method.the result shows that S.leontodontoides is diploid.The chromosome number in each somatic cell is 2n=32.The karyotype formulas is 2n=2x=32=2M+11m+2sm with karyotype belongs to 2B asymmetry.it is the first time to show the chromosome number and karyotype of S.leontodontoides. |
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| Keywords: | Saussurea leontodontoides chromosome number karyotype |
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