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.

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CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2019, Vol. 41 ›› Issue (6) : 850. DOI: 10.19802/j.issn.1007-9084.2019097

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

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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

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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]. CHINESE JOURNAL OF OIL CROP SCIENCES, 2019, 41(6): 850 https://doi.org/10.19802/j.issn.1007-9084.2019097

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