| 青藏高原东缘五种风毛菊属植物的核型研究 |
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| 引用本文： | 王一峰,巩红冬,高素芳,梁万福.青藏高原东缘五种风毛菊属植物的核型研究[J].四川大学学报(自然科学版),2006,43(5):1132-1136. |
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| 作者姓名： | 王一峰 巩红冬 高素芳 梁万福 |
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| 作者单位： | 1. 西北师范大学生命科学学院,兰州,730070;兰州大学干旱与草地生态教育部重点实验室,兰州,730000
2. 西北师范大学生命科学学院,兰州,730070 |
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| 基金项目： | 甘肃省教委(041-15);甘肃省科技厅(3ZS041-A25-008);甘肃省自然科学基金(3ZS051-A25-024) |
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| 摘 要： | 报道了产于青藏高原东缘五种风毛菊属(Saussurea DC.)植物的染色体数目和核型,研究结果表明,五个种的染色体数目分别是:紫苞雪莲(Saussurea iodostegia)2n=32;长毛风毛菊(Saussurea hieracioides)2n=32;柳叶菜风毛菊(Saussurea epilobioides)2n=24;小花风毛菊(Saussurea parviflora)2n=26;变裂风毛菊(Saussurea variiloba)2n=26,均为二倍体.核型公式为:紫苞雪莲(S.iodostegia)2n=2x=32=8m+16sm+8st,属3B型;长毛风毛菊(S.hieracioides)2n=2x=32=18m+14sm,属2B型;柳叶菜风毛菊(S.epilobioides)2n=2x=24=12m+10sm+2st,属2B型;小花风毛菊(S.parviflora)2n=2x=26=24m+2sm,属2B型;变裂风毛菊(S.variiloba)2n=2x=26=6m+16sm+4st,属3A型,五个种的染色体中均未发现随体.
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| 关 键 词： | 风毛菊属 紫苞雪莲 长毛风毛菊 柳叶菜风毛菊 小花风毛菊 变裂风毛菊 核型 |
| 文章编号： | 0490-6756（2006）05-1132-05 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006-02-20 |
A Study on Karyotypes of 5 Species of Saussurea in the Eastern of Qinghai-Tibet Plateau |
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| WANG Yi-feng,GONG Hong-dong,GAO Su-fang,LIANG Wan-fu.A Study on Karyotypes of 5 Species of Saussurea in the Eastern of Qinghai-Tibet Plateau[J].Journal of Sichuan University (Natural Science Edition),2006,43(5):1132-1136. |
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| Authors: | WANG Yi-feng GONG Hong-dong GAO Su-fang LIANG Wan-fu |
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| Affiliation: | 1. College of Life Science, Northwest Normal University, Lanzhou 730070, China; 2. State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | The chromosome numbers and the karyotypes of 5 species of Saussurea in the eastern edge of Qinghai-Tibet Plateau are studied.The result shows that the chromosome numbers are: S.iodostegia 2n=32;S.hieracioides 2n=32;S.epilobioides 2n=24;S.parviflora 2n=26;S.variiloba 2n=26,They are all diploid.And the karyotype formulae are as follows: S.iodostegia 2n=2x=32=8m+16sm+ 8st,karyotype belongs to stebbings 3B type;S.hieracioides 2n=2x=32=18m+14sm,karyotype belongs to stebbings 2B type;S.epilobioides 2n=2x=24=12m+10sm+2st,karyotype belongs to stebbings 2B type;S.parviflora 2n=2x=26=24m+2sm,karyotype belongs to stebbings 2B type;S.variiloba 2n=2x=26=6m+16sm+ 4st,karyotype belongs to stebbings 3A type.No satellites have been found in these 5 species. |
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| Keywords: | Saussurea DC S iodostegia S hieracioides S epilobioides S paruiflora S variiloba karyotype |
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