国产毛茛属植物五种一变种国产毛茛属植物五种一变种的核型

Plant Diversity ›› 2007, Vol. 29 ›› Issue (03): 316-322.

国产毛茛属植物五种一变种国产毛茛属植物五种一变种的核型

聂谷华^{1, 2} , 廖亮², 方亮², 徐玲玲² , 史军伟², 向其柏¹

1 南京林业大学森林资源与环境学院, 江苏南京 210037; 2 九江学院生命科学学院, 江西九江 332000

收稿日期:2007-02-13 出版日期:2007-06-25 发布日期:2007-06-25
通讯作者: 廖亮

Karyotypes of Five Species and One Variety in the Chinese Ranunculus (Ranunculaceae)

NIE Gu-Hua^{1, 2} , LIAO Liang² , FANG Liang², XU Ling-Ling²,
SHI Jun-Wei², XIANG Qi-Bai¹

1 College of Forest Resources and Environment , Nanjing Forestry University , Nanjing 210037 , China; 2 College of Life Science of Jiujiang University , Jiujiang 332000 , China

Received:2007-02-13 Online:2007-06-25 Published:2007-06-25
Contact: LIAO Liang

摘要/Abstract

摘要： 对国产6 种毛茛属( Ranunculus) 植物进行了核型研究。它们的核型公式分别为: 扇叶毛茛2n = 4x = 32 = 12m + 20sm, 云生毛茛2n = 4x= 32 = 16m+ 10sm+ 6st , 曲升毛茛2n = 4x = 32 = 14m + 16sm+ 2st 及2n = 5x = 40 = 18m + 16sm+ 4st + 2T, 西南毛茛2n = 2x = 16 = 12m+ 2sm + 2st , 匍枝毛茛2n = 2x = 16 = 8m+ 8st 及2n =
4x = 32 = 12m+ 4sm + 14st + 2t , 棱喙毛茛2n = 2x = 16 = 6m + 6sm + 4st。并结合形态及孢粉的资料就毛茛属植物核型不对称系数对分类的意义进行分析。

关键词: 毛茛属, 染色体数目, 核型FONT

Abstract: The somatic chromosome numbers and detailed chromosome morphology have been studied in five species and one variety of the genus Ranunculus from China . Their numbers and karyotype formulas are : R . felixii , 2n = 4x = 32 = 12m+ 20sm; R. nephelogenes, 2n = 4x = 32 = 16m + 10sm + 6st ; R. nephelogenes var. geniculatus, 2n = 4x = 32 = 14m + 16sm+ 2st or 2n = 5x= 40 = 18m+ 16sm+ 4st + 2T; R. ficariifolius, 2n = 2x = 16 = 12m+ 2sm + 2st; R. repens, 2n= 2x = 16 = 8m+ 8st or 2n = 4x = 32 = 12m+ 4sm + 14st + 2t; and R. trigonus, 2n = 2x = 16 = 6m + 6sm + 4st, respectively. The chromosome number of R. nephelogenes var. geniculatus and the karyotype of R . nephelogenes var. nephelogenes are reported for the first time. In combination with data from morphology and pollen, the taxonomic implications of the indices of karyological asymmetry in Ranunculus are analysed .

Key words: Ranunculus

聂谷华1, 2 , 廖亮2 , 方亮2 , 徐玲玲2 , 史军伟2 , 向其柏1 . 国产毛茛属植物五种一变种国产毛茛属植物五种一变种的核型[J]. Plant Diversity, 2007, 29(03): 316-322.

NIE Gu-Hua^, , LIAO Liang , FANG Liang, XU Ling-Ling,
SHI Jun-Wei, XIANG Qi-Bai. Karyotypes of Five Species and One Variety in the Chinese Ranunculus (Ranunculaceae)[J]. Plant Diversity, 2007, 29(03): 316-322.

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