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中国油料作物学报 ›› 2019, Vol. 41 ›› Issue (6): 850-.doi: 10.19802/j.issn.1007-9084.2019097

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

  

  1. National Key Laboratory of Crop Genetic Improvement/National Research Center of Rapeseed Engineering and Tech? nology, Huazhong Agricultural University, Wuhan 430070, China
  • Online:2019-12-28 Published:2019-12-20

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