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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