Abstract: Alien addition lines were the important materials invariety improvement and genome research. In this study, two mosomic addition lines named CO-7-1(Chinese cabbage with 7号 chromosome from cabbage) and CO-9-2 (Chinese cabbage with 9号 chromosome from cabbage) from the progenies of AAC×AA were obtained by cytology identification. The transmitting rates of alien chromosome were 35.3% and 20.0% from the progenies of CO-7-1 and CO-9-2 self-cross. The ratio of disomic addition lines CO-7-1D from the progenies of CO-7-1 self-cross was 11.8%. The obtained alien addition lines would be used to analyzing the genetic relationship between Chinese cabbage and cabbage, and synthesizing their translocation lines and substitution lines.

Key words: Chinese cabbage, cabbage, chromosome, ploidy, addition lines