| 新种祁门过路黄的核型证据 |
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| 引用本文： | 邵剑文,张小平,.新种祁门过路黄的核型证据[J].广西植物,2006,26(1):58-62. |
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| 作者姓名： | 邵剑文 张小平 |
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| 作者单位： | 安徽师范大学,生命科学学院,安徽,芜湖,241000;安徽省重要生物资源保护与利用研究重点实验室,安徽,芜湖,241000 |
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| 基金项目： | 安徽省自然科学基金
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安徽省教育厅自然科学基金
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安徽师范大学校科研和教改项目 |
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| 摘 要： | 对新种祁门过路黄及其近缘种巴东过路黄和光叶巴东过路黄的核型在居群水平上进行了比较研究。结果表明这两种植物的核型特征在种内是稳定的,同一物种的不同居群间核型无明显差异。祁门过路黄的核型为2n=2x=24=6m+6sm+6st+6t;巴东过路黄和光叶巴东过路黄的核型均为2n=2x=24=6m+4sm+6st+8t;两物种间核型差异显著,核型特征支持将祁门过路黄作为新种处理。
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| 关 键 词： | 新种 核型 证据 |
| 文章编号： | 1000-3142(2006)01-0058-04 |
| 收稿时间： | 2004-08-19 |
| 修稿时间： | 2005-06-20 |
Karyotypical evidence for the new species Lysimachia qimenensis |
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| SHAO Jian-wen,ZHANG Xiao-ping.Karyotypical evidence for the new species Lysimachia qimenensis[J].Guihaia,2006,26(1):58-62. |
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| Authors: | SHAO Jian-wen ZHANG Xiao-ping |
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| Institution: | 1. College of Life Science, Anhui Normal University, Wuhu 241000, China; 2. The Key Laboratory of Conservation and Employment of Biological Resources of Anhui, Wuhu 241000, China |
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| Abstract: | The karyotypes of the new species Lysimachia qimenensis X.H.Guo,X.P.Zhang et J.W.Shao and its related species,namely L.patungensis Hand.-Mazz.and L.patungensis f. glabrifolia C.M.Hu,were investigated and compared. Three different populations of each species were studied. The results of this study indicated that the karyotype of L.qimenensis X.H. Guo,X.P.Zhang et J.W.Shao is 2n=2x=24=6m 6sm 6st 6t,while that of L.patungensis Hand.-Mazz.and L.patungensis f. glabrifolia C.M.Hu.is 2n=2x=24=6m 4sm 6st 8t;No obvious karyotypical differences were found between different populations of the same species,but remarkable differences were found between the two different taxa. Therefore,with the data from the karyotypes and morphological characters combined,it is reasonable to consider L.qimenensis X.H.Guo,X.P.Zhang et J.W.Shao as a new species,instead of a variety of L.patungensis Hand.-Mazz. |
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| Keywords: | new species karyotype evidence |
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