Identification of a Cytoplasmic Male Sterile Line NEA in Brassica napus *** Its Genetic Studies

作     者：JIANG Liang-cai, PU Xiao-bin, ZHANG Qi-xing, CHEN Fang and ZHANG Jin-fang( The Crop Institute of the Sichuan Academy of Agricultural Sciences , Chengdu 610066 , P.R. China SichuanUniversity, Chengdu 610064 , P.R. China) 

作者机构：The Crop Institute of the Sichuan Academy of Agricultural Sciences Chengdu 610066 P. R. China Sichuan University Chengdu 610064 P. R. China 

出 版 物：《Agricultural Sciences in China》 (中国农业科学（英文版）)

年 卷 期：2002年第1卷第4期

页      面：381-387页

学科分类：09[农学] 0902[农学-园艺学] 090202[农学-蔬菜学] 

基　　金：the Fund of the 'Ninth Five Years Program' on Breeding Tackling Key Problem and Applied Basal Research Item of the Science and Technology Hall in Sichuan Province 

主　　题：Brassica napus L. Male sterile line Restorer line Heredity 

摘      要：Male sterile NEA plants were identified in progenies of the radiated 92P x Aggregate-silique in Brassica napus L. in 1993. Their progeny plants from test crossing and open pollination were 100% male sterile. The double-low male sterile lines JL-4 and JL-18 were bred through successive backcrossing of the double -low variety No.4 and No. 18 in Brassica napus *** NEA. Restorer lines 6720 and 6722 with significant heterosis in F1 were developed. The results from investigating the restoring-ntaintaining relationship and inheritance of the restorer gene indicated that JL-4 and JL-18 were different from both PolCMS and Shan 2A type, and their restorer gene was controlled by a pair of dominant genie genes.