Phenotypic characterization and genetic dissection of nine agronomic traits in Tokachi nagaha and its derived cultivars in soybean (Glycine max (L.) Merr.)
文献类型: 外文期刊
作者: Liu, Zhangxiong 1 ; Li, Huihui 1 ; Fan, Xuhong; Huang, Wen; Yang, Jiyu; Wen, Zixiang; Li, Yinghui 1 ; Guan, R 1 ;
作者机构: 1.Chinese Acad Agr Sci, Key Lab Crop Germplasm Utilizat, Natl Key Facil Gene Resources & Genet Improvement, Inst Crop Sci,Minist Agr, Beijing 100081, Peoples R China
2.Chinese Acad Agr Sci, Key Lab Crop
关键词: Soybean;Genome-wide association mapping;Agronomic traits;Cultivars
期刊名称:PLANT SCIENCE ( 影响因子:4.729; 五年影响因子:5.132 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: By using the soybean founder parent Tokachi nagaha and its 137 derived cultivars as materials, a genome-wide association analysis was performed to identify the single nucleotide polymorphisms (SNPs) underlying soybean yield and quality related traits at two planting densities. Results of ANOVA showed that genotype, environment, and genotype by environment interaction effects were all significant for each trait. The Tokachi nagaha-derived soybean population could be divided into two subpopulations based on molecular data, and accessions in each subpopulation were almost all from the same Chinese province. Relatedness was detected between pair -wise accessions within the population. Linkage disequilibrium was obvious and the level of intra-chromosome linkage disequilibrium was about 8370 kb. A total of 40 SNPs with significant signal were detected and distributed across 18 chromosomes. Some SNP markers were located in or near regions where QTLs have been previously mapped by linkage analysis. Nineteen SNPs were identified both in low- and high- density planting treatments, indicating those loci were common and sTable Sixteen SNPs were co -associated with two or more different traits, suggesting that some of the QTLs/genes underlying those identified SNPs were likely to be pleiotropic. (c)2016 Elsevier Ireland Ltd. All rights reserved.
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