Abstract:Two cabbage(Brassica oleracea var. capitata L.)inbred lines differing in cold-tolerance were used to analyze the effect of CBF gene variation on cold-tolerance.Based on Arabidopsis CBF1 gene sequence and the scaffold information of cabbage genome,the full-length coding domain sequence of cabbage BoCBF1 and BoCBF2 genes were obtained.PCR products were sequenced directly to discover 4 single nucleotide polymorphisms (SNP)between the inbred lines 341 and 21-3 for BoCBF1 gene and 16 SNP and one insertion-deletion (InDel)for BoCBF2 gene.In order to rapidly and reliably detect the sequence variation of BoCBF1 and BoCBF2 genes,2 CAPS markers were successfully converted and named as BoCBF1-TaqαⅠ,BoCBF2-BstUⅠ.The CAPS markers were used to screen inbred lines 341,21-3 and their F1,F2 population.The analysis showed that the variation of 2 genes very significantly correlated with cold-tolerance,so the CAPS markers can be used for marker-assisted selection(MAS)in cabbage cold-tolerance breeding.
靳哲,张扬勇,方智远,刘玉梅,杨丽梅,庄木,刘基生,孙培田. 结球甘蓝BoCBF1与BoCBF2基因的CAPS标记及其对耐寒性的影响[J]. 中国蔬菜, 2012, 1(14): 23-30.
JIN Zhe,ZHANG Yang-yong*,FANG Zhi-yuan,LIU Yu-mei,YANG Li-mei,ZHUANG Mu,LIU Ji-sheng,SUN Pei-tian. CAPS Markers of BoCBF1 and BoCBF2 Genes in Cabbage and Their Contribution to Cold-tolerance. , 2012, 1(14): 23-30.