| 角叶铁破锣的核型及其系统学意义 |
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| 引用本文： | 杨亲二,顾志建.角叶铁破锣的核型及其系统学意义[J].植物分类学报,1995,33(3):225-229. |
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| 作者姓名： | 杨亲二 顾志建 |
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| 作者单位： | 中国科学院植物研究所系统与进化植物学开放研究实验室，中国科学院昆明植物研究所，中国科学院昆明植物研究所 北京 100093，昆明 650204，昆明 650204 |
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| 摘 要： | 本文首次报道了角叶铁破锣的核形态。其静止核和有丝分裂前期染色体分别属于复杂中央染色微粒型和中间型；中期染色体数目为2n=16；核型公式为2n＝10m+4st十2t(2sat)。根据上述结果并结合有关资料，本文讨论了铁破锣和角叶铁破锣之间的核型差异以及铁破锣属的系统位置，指出铁破锣属可能与升麻属等类群关系较近而与金莲花属等类群关系较远，因此将该属置于升麻族中比置于金莲花族中合理。
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| 关 键 词： | 铁破锣属 角叶铁破罗 核形态 系统位置 |
THE KARYOTYPE OF BEESIA DELTOPHYLLA AND ITS SYSTEMATIC SIGNIFICANCE |
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| Yang Qin-er
Laboratory of Systematic and Evolutionary Botany Institute of Botany,Academia Sinica,Beijing
Gu Zhi-jian Sun Hang
Kunming Institute of Botany,Academia Sinica,Kunming.THE KARYOTYPE OF BEESIA DELTOPHYLLA AND ITS SYSTEMATIC SIGNIFICANCE[J].Acta Phytotaxonomica Sinica,1995,33(3):225-229. |
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| Authors: | Yang Qin-er
Laboratory of Systematic and Evolutionary Botany Institute of Botany Academia Sinica Beijing
Gu Zhi-jian Sun Hang
Kunming Institute of Botany Academia Sinica Kunming |
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| Affiliation: | Yang Qin-er
Laboratory of Systematic and Evolutionary Botany Institute of Botany,Academia Sinica,Beijing 100093
Gu Zhi-jian Sun Hang
Kunming Institute of Botany,Academia Sinica,Kunming 650204 |
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| Abstract: | Investigated in this work was karyomorphology of Beesia deltophylla. The resting nuclei and prophase chromosomes were categorized as complex chromocenter type and interstitial type respectively. The metaphase chromosomes were counted to be 2n-16. The kary-otype was formulated as 2n= 10m 4st 2t(2sat). Based on the results, the karyotypic difference between B. calthifolia and B, deltophylla was shown, and the systematic position of the genus Beesia was discussed. Beesia might be closely related to Cimicifuga and its allied genera, but only distantly related to Trollius and its allies, and thus it might be more reasonable to place Beesia in the tribe Cimicifugeae than in the tribe Trollieae. |
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| Keywords: | Beesia Beesia deltophylla Karyomorphology systematic position |
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