Genome-wide association study exposed the pleiotropic genes for yield-related and oil quality traits in Brassica napus L.OACSCD
Oilseed rape(Brassica napus L.) is an allotetraploid(AACC,2n=38) crop,valued for its edible oil and protein content.seed yield and nutritional composition of rapeseed are influenced by its yield and oil quality traits.However,the genetic basis of yield-related and oil-quality traits remain ambiguous.A panel of 266 diversified oilseed rape accessions was genotyped using 223 simple sequence repeat(SSR) markers covering all 19 chromosomes to identify significant markers associated with yield and quality traits.Twelve yield-related and six quality traits were investigated in two consecutive years(2014 and 2015),with three replications in two environments(Changshun,CS;and Qinghe,QH).Using the model GLM with population structure and kinship(Q+K),a total of 25 significant SSR markers(P <0.001) were detected to be associated with these twelve yield-related and six quality traits,explaining 4.56%-19.17% of the phenotypic variation for each trait.Based on these markers,BnaA03g23490D, BnaC09g46370D,BnaA07g37150D,BnaA01g32590D, and BnaC09g37280D were identified as pleiotropic genes controlling multiple traits.These candidate genes illustrated the potential for the genetic understanding of yield and oil quality traits.Most importantly,these significant markers can be used for marker-assisted breeding of oilseed rape in different environments.
Yang Xiang;M.M.U.Helal;Longbing Liang;Minqin Zhang;Hongshi Han;Xianglai Dai;Jixian Zhao;Dalun Chen;Xianping Wang;Min Li;Chuanji Zhao
Guizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaOil Crops Research Institute of the Chinese Academy of Agricultural Sciences/The Key Laboratory of Biology and Genetic Improvement of Oil Crops,The Ministry of Agriculture and Rural Affairs,Wuhan,430062,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR ChinaGuizhou Rapeseed Institute,Guizhou Academy of Agricultural Sciences,Guiyang,550008,PR China
农业科学
Brassica napusGWASYield-related and oil quality traitsSSR markers
《Oil Crop Science-中国油料作物学报英文版》 2023 (3)
P.156-164,9
supported by National Natural Science Foundation of China(No.32070217)Subsidy project from NSFC of Guizhou Academy of Agricultural Sciences(No.[2021]50)The Scientific and Technological Key Program of Guizhou province(No.Qiankehezhicheng[2022]Key 031,025and 026)The Agricultural Scientific and Technological Research Projects of Guizhou province(No.Qiankehezhicheng[2020]1Y109 and 1Y106Youth Foundation of Guizhou Academy of Agricultural Sciences(No.[2021]07).
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