Genome-wide association study identifies QTL for eight fruit traits in cultivated tomato (Solanum lycopersicum L.)
作者机构：Department of Bioresources EngineeringSejong UniversitySeoulRepublic of Korea Asia Seed R&D centerIcheonRepublic of Korea Plant Engineering Research InstituteSejong UniversitySeoulRepublic of Korea
出 版 物：《Horticulture Research》 (园艺研究（英文）)
年 卷 期：2021年第8卷第1期
页 面：2698-2707页
核心收录：
学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 1001[医学-基础医学(可授医学、理学学位)] 09[农学] 0901[农学-作物学] 0703[理学-化学] 0836[工学-生物工程] 0902[农学-园艺学] 0834[工学-风景园林学（可授工学、农学学位）] 090202[农学-蔬菜学]
基 金：This work was carried out with the support of Cooperative Research Program for Agriculture Science and Technology Development(Project No.PJ0158982021) the Next-Generation BioGreen21 Program(Project No.PJ0131142020) Rural Development Administration,Republic of Korea
主 题：breeding traits membership
摘 要：Genome-wide association study(GWAS)is effective in identifying favorable alleles for traits of interest with high mapping resolution in crop *** this study,we conducted GWAS to explore quantitative trait loci(QTL)for eight fruit traits using 162 tomato accessions with diverse genetic *** eight traits included fruit weight,fruit width,fruit height,fruit shape index,pericarp thickness,locule number,fruit firmness,and *** variations of these traits in the tomato collection were evaluated with three replicates in field trials over three *** filtered 34,550 confident SNPs from the 51K Axiom®tomato array based on5%of minor allele frequency for association *** 162 tomato accessions were divided into seven clusters and their membership coefficients were used to account for population structure along with a kinship *** identify marker-trait associations(MTAs),four phenotypic data sets representing each of three years and combined were independently analyzed in the multilocus mixed model(MLMM).A total of 30 significant MTAs was detected over data sets for eight fruit traits at P*** number of MTA per trait ranged from one(brix)to seven(fruit weight and fruit width).Two SNP markers on chromosomes 1 and 2 were significantly associated with multiple traits,suggesting pleiotropic effects of ***,16 of 30 MTAs suggest potential novel QTL for eight fruit *** results facilitate genetic dissection of tomato fruit traits and provide a useful resource to develop molecular tools for improving fruit traits via marker-assisted selection and genomic selection in tomato breeding programs.
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