Selection of soybean elite cultivars based on phenotypic and genomic characters related to lodging tolerance
文献类型: 外文期刊
作者: Liu, Zhangxiong 1 ; Li, Huihui 1 ; Fan, Xuhong 2 ; Huang, Wen 3 ; Yang, Jiyu 4 ; Zheng, Yuhong 2 ; Wen, Zixiang 5 ; Li, Y 1 ;
作者机构: 1.Chinese Acad Agr Sci, Natl Key Facil Gene Resources & Genet Improvement, Key Lab Crop Germplasm Utilizat, Minist Agr,Inst Crop Sci, Beijing, Peoples R China
2.Jilin Acad Agr Sci, Inst Soybean Res, Changchun, Jilin, Peoples R China
3.Tonghua Acad Agr Sci, Meihekou, Peoples R China
4.Jilin City Acad Agr Sci, Jilin, Jilin, Peoples R China
5.Michigan State Univ, Dept Plant Soil & Microbial Sci, E Lansing, MI
关键词: additive main effects and multiplicative interaction model;genome-wide association analysis;lodging scores;lodging tolerance;soybean
期刊名称:PLANT BREEDING ( 影响因子:1.832; 五年影响因子:1.956 )
ISSN:
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收录情况: SCI
摘要: Soybean lodging can result in serious yield reduction. Detecting the quantitative trait loci (QTL) associated with lodging tolerance for their further application in marker-assisted selection (MAS) has the potential to enhance soybean breeding efficiency. In this study, a genome-wide association analysis (GWAS) was performed to identify soybean accessions that could potentially be used to produce lodging-tolerant varieties, based on the comprehensive evaluation of lodging scores (LS) obtained for the parental cultivar Tokachi nagaha and its 137 derived cultivars. Results showed that genotype, environment and genotypexenvironment interaction significantly influenced LS. Of the 31 significant SNPs identified, 22 were consistently detected in two or more environments and 27 SNPs were located in or close to agronomically important QTL mapped by linkage analysis. Best linear unbiased predictors (BLUPs) of LS tend to decrease with the elite alleles contained by accessions increasing. Some excellent accessions, with lower BLUPs and D-i (stability coefficients) values and more elite alleles, were selected. This study contributed to understand the genetic mechanism of lodging, providing genetic and phenotypic information for MAS.
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