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Exploration into Natural Variation Genes Associated with Determinate and Capitulum-like Inflorescence in Brassica napus

文献类型: 外文期刊

作者: Wan, Wei 1 ; Zhao, Haifei 1 ; Yu, Kunjiang 1 ; Xiang, Yang 2 ; Dai, Wendong 2 ; Du, Caifu 2 ; Tian, Entang 1 ;

作者机构: 1.Guizhou Univ, Agr Coll, Guiyang 550004, Peoples R China

2.Guizhou Acad Agr Sci, Guizhou Rapeseed Res Inst, Guiyang 550006, Peoples R China

关键词: Brassica napus; determinate inflorescence; BnaAP1; BnaTFL1

期刊名称:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES ( 影响因子:5.6; 五年影响因子:6.2 )

ISSN: 1661-6596

年卷期: 2023 年 24 卷 16 期

页码:

收录情况: SCI

摘要: Brassica napus is a globally important vegetable and oil crop. The research is meaningful for the yield and plant architecture of B. napus. In this study, one natural mutant line with determinate and capitulum-like inflorescence was chosen for further study. Genetic analysis indicated that the segregation patterns of inflorescences in the F2 populations supported a digenic inheritance model, which was further approved via the BSA-Seq technique. The BSA-Seq method detected two QTL regions on C02 (14.27-18.41 Mb) and C06 (32.98-33.68 Mb) for the genetic control of determinate inflorescences in MT plants. In addition, the expression profile in MT compared with WT was analyzed, and a total of 133 candidate genes for regulating the flower development (75 genes, 56.4%), shoot meristem development (29 genes, 21.8%), and inflorescence meristem development (13 genes, 9.8%) were identified. Then one joint analysis combing BSA-Seq and RNA-Seq identified two candidate genes of BnaTFL1 and BnaAP1 for regulating the MT phenotype. Furthermore, the potential utilization of the MT plants was also discussed.

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