Regional association and transcriptome analysis revealed candidate genes controlling plant height in Brassica napus

文献类型： 外文期刊

第一作者： Ren, Rui

作者： Ren, Rui;Liu, Wei;Yao, Min;Jia, Yuan;Huang, Luyao;Li, Wenqian;He, Xin;Guan, Mei;Liu, Zhongsong;Guan, Chunyun;Xiong, Xinghua;Qian, Lunwen;Hua, Wei

作者机构：

关键词： Brassica napus; GWAS; Plant height; Haplotype; Coexpression

期刊名称：MOLECULAR BREEDING （ 影响因子：3.1； 五年影响因子：3.1 ）

ISSN： 1380-3743

年卷期： 2022 年 42 卷 11 期

页码：

收录情况： SCI

摘要： Plant height is a key morphological trait in rapeseed, which not only plays an important role in determining plant architecture, but is also an important characteristic related to yield. Presently, the improvement of plant architecture is a major challenge in rapeseed breeding. This work was carried out to identify genetic loci related to plant height in rapeseed. In this study, a genome-wide association study (GWAS) of plant height was performed using a Brassica 60 K Illumina Infinium SNP array and 203 Brassica napus accessions. Eleven haplotypes containing important candidate genes were detected and significantly associated with plant height on chromosomes A02, A03, A05, A07, A08, C03, C06, and C09. Moreover, regional association analysis of 50 resequenced rapeseed inbred lines was used to further analyze these eleven haplotypes and revealed nucleotide variation in the BnFBR12-A08 and BnCCR1-C03 gene regions related to the phenotypic variation in plant height. Furthermore, coexpression network analysis showed that BnFBR12-A08 and BnCCR1-C03 were directly connected with hormone genes and transcription factors and formed a potential network regulating the plant height of rapeseed. Our results will aid in the development of haplotype functional markers to further improve plant height in rapeseed.

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