| 路南海菜花的核型分析及其海菜花属的演化探讨 |
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| 引用本文： | 翟书华,王斌,王定康,张光飞.路南海菜花的核型分析及其海菜花属的演化探讨[J].湖泊科学,2010,22(5):735-738. |
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| 作者姓名： | 翟书华 王斌 王定康 张光飞 |
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| 作者单位： | 1. 国土资源部盐湖资源与环境重点实验室,北京,100037;中国地质科学院地质研究所,北京,100037
2. 国土资源部盐湖资源与环境重点实验室,北京,100037;中国地质科学院矿产资源研究所,北京,100037 |
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| 基金项目： | 国家自然科学基金重点项目,中央级公益性科研院所基本科研业务费专项资金项目,国家大地调查项目 |
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| 摘 要： | 海菜花属(Ottelia Pers.)为沉水单子叶植物,只生长于淡水生境中,具有重要的生态价值、环境指示作用以及植物系统学研究意义.本文首次报道了特产于我国云南石林湖泊中的路南海菜花(Ottelia acuminata var.lunanensis H.Li)的体细胞染色体数目为22条,核型属"1B"型,核型公式2n=2x=22=18m+4sm.结合已研究的花部特征和核型资料讨论海菜花属种间的亲缘关系及演化,为海菜花(Ottelia)的利用和保护提供细胞生物学证据.
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| 关 键 词： | 古昆仑湖 地层学特征 微体古生物 古气候古环境 |
| 收稿时间： | 2009/11/19 0:00:00 |
| 修稿时间： | 2010/1/27 0:00:00 |
Caryotype of Ottelia acuminata var. lunanensis H. Li and evolution of Ottelia Pers. |
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| ZHAI Shuhu,WANG Bin,WANG Dingkang and ZHANG Guangfei.Caryotype of Ottelia acuminata var. lunanensis H. Li and evolution of Ottelia Pers.[J].Journal of Lake Science,2010,22(5):735-738. |
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| Authors: | ZHAI Shuhu WANG Bin WANG Dingkang and ZHANG Guangfei |
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| Institution: | Life Science & Technology Department of Kunming University, Kunming 650031, P. R. China,Life Science & Technology Department of Kunming University, Kunming 650031, P. R. China,Life Science & Technology Department of Kunming University, Kunming 650031, P. R. China and Ecology and Geo-Biology Institute of Yunnan University, Kunming 650091, P. R. China |
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| Abstract: | Ottelia is a kind of submerged monocots inhabiting only in fresh water. This genus has an important ecological value and much significance of environment-monitoring, as well as the material of a plant systematic study. The auhtors presented for the first time that Ottelia acuminata var. lunanensis H. Li, a peculiar plant growing in the lakes of Stone Forest County of Yunnan Province, China, has 22 somatic chromosomes, which are classified as "1B" caryotype (2n=2x=22=18m+4sm). By analyzing both the flower characteristics and the caryotypes of Ottelia, the consanguineous relationships among its varieties and their evolution were also discussed, which proposed a cell-biological theory for the using and protection of Ottelia. |
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| Keywords: | 183-90kaBP |
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