| 湖北泽泻属植物的细胞分类学研究 |
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| 引用本文： | 王真强,孙祥钟,王徽勤.湖北泽泻属植物的细胞分类学研究[J].中国科学院研究生院学报,1987,25(4):254-263. |
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| 作者姓名： | 王真强 孙祥钟 王徽勤 |
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| 摘 要： | 本文对湖北省三种泽泻属 Alisma L. 植物进行了核型分析和形态研究。 结果表明：
泽泻 A．plantago-aquatica L. 和东方泽泻1) A. orientale (Sam．) Juzep． 2n=2x=14，窄叶
泽泻 A．canaliculatum A．Br. Bouche 2n=6x=42。 其中东方泽泻的核型是未报道过的新
类型，这与前人所提出的该属植物核型为同型的结论不同，且泽泻和东方泽泻在形态方面亦有
很大差异，因而支持将泽泻和东方泽泻分立两种的观点。又结合前人的工作，讨论了该属植物
核型变异的三种式样。
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| 关 键 词： | 泽泻属 核型 分类 |
Cytotaxonomic Studies on Alisma L. from Hubei |
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| Wang Zhen-Qiang,Sun Xiang-Zhong,Wang Hui-Qin.Cytotaxonomic Studies on Alisma L. from Hubei[J].Journal of the Graduate School of the Chinese Academy of Sciences,1987,25(4):254-263. |
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| Authors: | Wang Zhen-Qiang Sun Xiang-Zhong Wang Hui-Qin |
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| Abstract: | The karyotypes of Alisma species in Hubei were analysed. The authors have
surveyed populations in fields, measured some morphological characters, made some experiments
of cultivation, and further studied classificatory problems in this genus. The results are as
follows:
1. There are three species in the provinc: A. plantago-aquatica L., A. orientale (Sam.)
Juzep. and A. canaliculatum A. Br. Bouche.
2. A. plantago-aquatica and A. orientale are diploids, 2n=2x=14, A. canaliculatum is
a hexaploid, 2n=6x=42. A new type of karyotype is reported here for A. orientale, which
is contrary to the reports that the karyotypes of Alisma are uniform.
3. There are obvious differences between A. plantago-aquatica and A. orientale in mor-
phology and karyotype and they should be regarded as two separate species.
4. There are three patterns of karyotype variation in this genus: ① Polyploidy; ② Va-
riation of individual chromosomes from symmetry to asymmetry; ③ Increase of karyotype symmetry. |
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| Keywords: | Alisma Karyotype Classification |
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