Phenotypic characteristics and genetic analysis of multi-inflorescence trait in Brassica napus

doi:10.19802/j.issn.1007-9084.2019097

Abstract

Abstract:

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.

Key words: , Brassica napus；multi-inflorescence；apical meristem；molecular marker；linkage map

LU Hong-chen，WU Han-fei，WEN Jing，YI Bin，MA Chao-zhi，TU Jin-xing，FU Ting-dong，SHEN Jin-xiong* . Phenotypic characteristics and genetic analysis of multi-inflorescence trait in Brassica napus[J]. 中国油料作物学报, 2019, 41(6): 850-.

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