Genome-wide association study of kernel moisture content at harvest stage in maize

Kernel moisture content at harvest stage (KMC) is an important factor affecting maize production, especially for mechanical harvesting. We investigated the genetic basis of KMC using an association panel comprising of 144 maize inbred lines that were phenotypically evaluated at two field trial locat...

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Veröffentlicht in:Breeding science. - 1998. - 68(2018), 5 vom: 29. Dez., Seite 622-628
1. Verfasser: Zhou, Guangfei (VerfasserIn)
Weitere Verfasser: Hao, Derong, Xue, Lin, Chen, Guoqing, Lu, Huhua, Zhang, Zhenliang, Shi, Mingliang, Huang, XiaoLan, Mao, Yuxiang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Breeding science
Schlagworte:Journal Article favorable allele genome-wide association study kernel moisture content maize (Zea mays L.) quantitative trait locus
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520 |a Kernel moisture content at harvest stage (KMC) is an important factor affecting maize production, especially for mechanical harvesting. We investigated the genetic basis of KMC using an association panel comprising of 144 maize inbred lines that were phenotypically evaluated at two field trial locations. Significant positive or negative correlations were identified between KMC and a series of other agronomic traits, indicating that KMC is associated with other such traits. Combining phenotypic values and the Maize SNP3K Beadchip to perform a genome-wide association study revealed eight single nucleotide polymorphisms (SNPs) associated with KMC at P ≤ 0.001 using a mixed linear model (PCA+K). These significant SNPs could be converted into five quantitative trait loci (QTLs) distributed on chromosomes 1, 5, 8, and 9. Of these QTLs, three were colocalized with genomic regions previously reported. Based on the phenotypic values of the alleles corresponding to significant SNPs, the favorable alleles were mined. Eight maize inbred lines with low KMC and harboring favorable alleles were identified. These QTLs and elite maize inbred lines with low KMC will be useful in maize breeding 
650 4 |a Journal Article 
650 4 |a favorable allele 
650 4 |a genome-wide association study 
650 4 |a kernel moisture content 
650 4 |a maize (Zea mays L.) 
650 4 |a quantitative trait locus 
700 1 |a Hao, Derong  |e verfasserin  |4 aut 
700 1 |a Xue, Lin  |e verfasserin  |4 aut 
700 1 |a Chen, Guoqing  |e verfasserin  |4 aut 
700 1 |a Lu, Huhua  |e verfasserin  |4 aut 
700 1 |a Zhang, Zhenliang  |e verfasserin  |4 aut 
700 1 |a Shi, Mingliang  |e verfasserin  |4 aut 
700 1 |a Huang, XiaoLan  |e verfasserin  |4 aut 
700 1 |a Mao, Yuxiang  |e verfasserin  |4 aut 
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773 1 8 |g volume:68  |g year:2018  |g number:5  |g day:29  |g month:12  |g pages:622-628 
856 4 0 |u http://dx.doi.org/10.1270/jsbbs.18102  |3 Volltext 
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