植物遗传资源学报2025，Vol.26Issue(3)：507-518,12.DOI:10.13430/j.cnki.jpgr.20240621001
高粱BZR基因的鉴定及与籽粒性状关联分析
Identification of BZR Genes and Its Association with Grain Traits in Sorghum
摘要
Abstract
Brassinosteroids(BRs)are class of important hormones in plants,which play a role in regulating plant growth and development and resisting various environmental stresses.BZR transcription factors are key regulatory factors in the BRs signaling pathway and transmit BRs signals by regulating the expression of target genes.To further study the biological characteristics and functions of BZR genes in sorghum,this study identified 10 BZR genes from the sorghum genome.The tissue-specific expression analysis showed that SbBZR3,SbBZR4,and SbBZR10 are highly expressed in multiple tissues as well as have high expression levels during the grain development process.Meanwhile,based on the resequencing results and grain phenotype data of 340 sorghum germplasm resources,the superior alleles of SbBZRs were identified.The results showed that the superior alleles SbBZR3-SNP404(T)was significantly associated with grain length,and SbBZR10-SNP660(A)was significantly associated with grain length,grain width and 1000-grain weight.Both SbBZR3-SNP404(T)and SbBZR1 0-SNP660(A)were artificially selected during the evolutionary process.This study not only lays a foundation for revealing the action mechanism of BZR genes in sorghum,but also provides a reference for using excellent alleles to improve grain size and promote the creation of new sorghum seeds with high yield.关键词
高粱/BZR基因/籽粒性状/等位变异Key words
sorghum/BZR genes/grain trait/allelic variation引用本文复制引用
赵娟莹,张一中,李金彪,李皓翔,王绘艳,张晓娟,范昕琦,梁笃,郭琦,柳青山..高粱BZR基因的鉴定及与籽粒性状关联分析[J].植物遗传资源学报,2025,26(3):507-518,12.基金项目
国家自然科学基金(32241042) （32241042）
山西省博士毕业生、博士后研究人员来晋工作奖励经费科研项目(SXBYKY2023022) （SXBYKY2023022）
山西省科技重大专项计划"揭榜挂帅"项目(202101140601027) （202101140601027）
山西农业大学高粱研究所国家基金培育项目(GLS-gp-202402)National Natural Science Foundation of China(32241042) （GLS-gp-202402）
The Scientific Research Project of Shanxi Province Outstanding Doctoral and Postdoctoral Researchers Work Award Fund(SXBYKY2023022) （SXBYKY2023022）
The Major Special Science and Technology Projects in Shanxi Province(202101140601027) （202101140601027）
National Fund Cultivation Project of Sorghum Research Institute,Shanxi Agricultural University(GLS-gp-202402) （GLS-gp-202402）
