菜薹随体—染色体初级三体的筛选与遗传分析  

Selection and Identification of the SAT-chromosome Primary Trisomic of Flowering Chinese Cabbage

作　　者：申二巧[1] 张成合[1] 李晓锋[1] 轩淑欣[1] 申书兴[1] 

机构地区：[1]河北农业大学园艺学院,河北保定071001

出　　处：《园艺学报》2011年第8期1553-1556,共4页Acta Horticulturae Sinica

基　　金：河北省自然科学基金项目(C209900543)

摘　　要：以菜薹品种‘青露菜心’为材料,采用核型分析和形态学鉴定的方法,从三倍体与二倍体的回交子代中筛选SAT-染色体初级三体。共鉴定了374个回交子代,获得了1株SAT-染色体初级三体。SAT-染色体初级三体生长发育基本正常,但柱头高出雄蕊,(n+1)雌、雄配子的传递率分别为6.04%和3.20%。The flowering Chinese cabbage cultiva＇rQinglu Caixin＇was used for the satellite-chromosome trisomic（SAT-trisomic）selection by karyotype analysis and morphological identification from the backcross progeny of triploid（2n = 3x = 30）× diploid parent（2n = 2x = 20）.The results showed that one SAT-trisomic was obtained from the 374 progeny identified by chromosome examination and karyotype analysis.Development of the SAT-trisomic was almost normal,but its stigma was above the stamen.Transmission rate of the extra SAT-chromosome was 6.04% by female gametes and 3.20% by male gametes.

关 键 词：菜薹 随体 染色体 初级三体 核型分析 

分 类 号：S634.5[农业科学—蔬菜学]