芒和五节芒的核型研究  

The Karyorypes of Micanthus sinensis and M. floridulus

作　　者：陈少风[1] 何俊[2] 周朴华[1] 杨赛钢[2] 

机构地区：[1]湖南农业大学生物科学技术学院,湖南长沙410128 [2]南昌大学生命科学学院,江西南昌330031

出　　处：《江西农业大学学报》2008年第1期123-126,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：江西省科技厅资助项目(20061C0700606)

摘　　要：分析禾本科芒属(Miscanthus Anderss.)2种植物的核型。结果为:2种植物染色体数目均为38,芒(M.sinensis)的核型为:2n=38=28 m+10 sm;五节芒(M.floridulus)的核型为:2n=38=24 m+14 sm。2个种均无随体染色体出现,核型都属于2B类型。芒和五节芒的核型均为首次报道。The present paper deals with the karyotypes of M. sinensis Anderss. and M. floridulus （ Lab. ） Warb. ex Schum. et Laut from Mt. Lushan and Nanchang,Jiangxi Province. The analysis results are as follows： M. sinensis, 2n = 38 = 28m ＋ 10 sm and M. floridulus, 2n = 38 = 24 m ＋ 14 sm. The chromosomes are small and no satellite chromosomes have been found. The karyotypes are classified as 2B according to Stebbin＇ s category. The karyotypes of the two species are reported for the first time. Some related cytotaxonomic problems are also discussed in the paper.

关 键 词：芒属 染色体数目 核型 禾本科 

分 类 号：Q949.714.2[生物学—植物学]