Genome-wide association analysis of plant height and ear height related traits in maize

Suitable plant height（PH） and ear height（EH） can improve the efficiency of nutrient utilization and lodging resistance,which is of great significance for stable and high yield in maize. In this study, an association panel including 854 maize inbred lines used to analyze the PH, EH, and the ratio of...

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Published inZuo wu xue bao Vol. 49; no. 3; p. 647
Main Authors Ma, Ya-Jie, Bao, Jian-Xi, Gao, Yue-Xin, Li, Ya-Nan, Qin, Wen-Xuan, Wang, Yan-Bo, Long, Yan, Li, Jin-Ping, Dong, Zhen-Ying, Wan, Xiang-Yuan
Format Journal Article
LanguageChinese
Published Beijing Chinese Academy of Agricultural Sciences (CAAS) 01.01.2023
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Association analysis
Biomarkers
Carbohydrate metabolism
Carbohydrates
Cell division
Cloning
Corn
Crop yield
Gene loci
Gene mapping
Genes
Genome-wide association studies
Genomes
Inbreeding
Lodging
Marker-assisted selection
Nucleotides
Nutrient utilization
Phenotypic variations
Plant breeding
Polymorphism
Quantitative trait loci
Signal transduction
Single-nucleotide polymorphism
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Summary:Suitable plant height（PH） and ear height（EH） can improve the efficiency of nutrient utilization and lodging resistance,which is of great significance for stable and high yield in maize. In this study, an association panel including 854 maize inbred lines used to analyze the PH, EH, and the ratio of EH to PH（EH/PH） in four environments, and genome-wide association study（GWAS） was then conducted using 2795 single nucleotide polymorphism（SNP） markers distributed uniformly throughout maize genome. A total of 81 SNP loci（P < 0.0001） were identified by using FarmCPU model, among which 35 SNPs were significantly associated with PH, with phenotypic variation explained（PVE） ranging from 0.020% to 6.225%; 31 SNPs were significantly associated with ear height, and PVE was from 0.026% to 3.060%; 24 SNPs were significantly associated with EH/PH, and the PVE ranged from 0.032% to 6.636%. 15 stable SNPs that were repeatedly detected in multiple environments for specific trait were further identified, among which six loci we
ISSN:0496-3490