
Phenotypic characteristics and genetic analysis of multi-inflorescence trait in Brassica napus
LU Hong-chen,WU Han-fei,WEN Jing,YI Bin,MA Chao-zhi,TU Jin-xing,FU Ting-dong,SHEN Jin-xiong*
CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2019, Vol. 41 ›› Issue (6) : 850.
Phenotypic characteristics and genetic analysis of multi-inflorescence trait in Brassica napus
For plant type breeding, a multi-inflorescence rapeseed mutant was investigated on phenotype and molecular markers. Results of F1, RF1 and segregation population indicated that one pair of dominant genes were dif?ferent between the 2 tested parental materials and no cytoplasmic effect was detected. Using Brassica napus 60K SNP array combined with molecular marker technology, a linkage map of the multi-inflorescence gene MI was con? structed. Two flanking markers L04-2 and L06-14 were mapped at 4.4 cM and 9.3 cM from MI gene respectively. Their physical distance was 2.5 Mb.
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Brassica napus;multi-inflorescence;apical meristem;molecular marker;linkage map
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