串叶松香草染色体核型分析  

Study on karyotype of Silphium perfoliatum

作　　者：宋芸[1] 乔永刚[1] 赵龙波[1] 

机构地区：[1]山西农业大学生命科学学院,山西太谷030801

出　　处：《草原与草坪》2009年第5期20-22,共3页Grassland and Turf

基　　金：山西省高校高科技开发项目(20081010)资助

摘　　要：对串叶松香草根尖细胞进行染色体常规制片,并进行核型分析。结果表明,串叶松香草染色体数为2n=14,,核型公式为K(2n)=2x=14=4m+6sm+4st,其中中部着丝粒染色体(m)为2对,近中部着丝粒染色体(sm)为3对,近端部着丝粒染色体(st)为2对。核型类型为3B。The karyotype of Silphium perfoliatum was studied. The results showed that the chromosome number was 2n=14 and its karyotype formula was K（2n）=2x=14=4m＋6sm＋4st. There was two pairs of metacentric chromosome, three pairs of sub-metacentric chromosome and three pairs of acrocentric chromosome. The karyotype of Silphiurn perfoliatum belonged to ＂3B＂ Stebbins.

关 键 词：串叶松香草 染色体 核型 

分 类 号：S540.35[农业科学—作物学]