Genome-wide association study and genomic selection for yield and related traits in soybean
文献类型： 外文期刊
作者： Ravelombola, Waltram 2 ; Qin, Jun 1 ; Shi, Ainong 2 ; Song, Qijian 3 ; Yuan, Jin 1 ; Wang, Fengmin 1 ; Chen, Pengyin 4 ;
作者机构： 1.Hebei Acad Agr & Forestry Sci, Key Lab Crop Genet & Breeding Hebei Prov,Minist A, Natl Soybean Improvement Ctr Shijiazhuang Sub Ctr, North China Key Lab Biol & Genet Improvement Soyb, Shijiazhuang, Hebei, Peoples R China
2.Univ Arkansas, Dept Hort, Fayetteville, AR 72701 USA
3.USDA ARS, Soybean Genom & Improvement Lab, Beltsville Agr Res Ctr, Beltsville, MD USA
4.Univ Missouri, Fisher Delta Res Ctr, Columbia, MO 65211 USA
期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）
ISSN： 1932-6203
年卷期： 2021 年 16 卷 8 期
页码：
收录情况： SCI
摘要： Soybean [Glycine max (L.) Merr.] is a crop of great interest worldwide. Exploring molecular approaches to increase yield genetic gain has been one of the main challenges for soybean breeders and geneticists. Agronomic traits such as maturity, plant height, and seed weight have been found to contribute to yield. In this study, a total of 250 soybean accessions were genotyped with 10,259 high-quality SNPs postulated from genotyping by sequencing (GBS) and evaluated for grain yield, maturity, plant height, and seed weight over three years. A genome-wide association study (GWAS) was performed using a Bayesian Information and Linkage Disequilibrium Iteratively Nested Keyway (BLINK) model. Genomic selection (GS) was evaluated using a ridge regression best linear unbiased predictor (rrBLUP) model. The results revealed that 20, 31, 37, and 23 SNPs were significantly associated with maturity, plant height, seed weight, and yield, respectively; Many SNPs were mapped to previously described maturity and plant height loci (E2, E4, and Dt1) and a new plant height locus was mapped to chromosome 20. Candidate genes were found in the vicinity of the two SNPs with the highest significant levels associated with yield, maturity, plant height, seed weight, respectively. A 11.5-Mb region of chromosome 10 was associated with both yield and seed weight. Overall, the accuracy of GS was dependent on the trait, year, and population structure, and high accuracy indicates that these agronomic traits can be selected in molecular breeding through GS. The SNP markers identified in this study can be used to improve yield and agronomic traits through the marker-assisted selection and GS in breeding programs.
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