2011
DOI: 10.1038/ng.746
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Genome-wide association study of leaf architecture in the maize nested association mapping population

Abstract: US maize yield has increased eight-fold in the past 80 years, with half of the gain attributed to selection by breeders. During this time, changes in maize leaf angle and size have altered plant architecture, allowing more efficient light capture as planting density has increased. Through a genome-wide association study (GWAS) of the maize nested association mapping panel, we determined the genetic basis of important leaf architecture traits and identified some of the key genes. Overall, we demonstrate that th… Show more

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Cited by 897 publications
(838 citation statements)
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“…Through deep RNA-seq, we obtained an average of 70 million reads for each inbred line, which resulted in the recovery of 1.03 million high-quality SNPs in the maize genome. The identified SNPs are of significance to the maize research community, especially in exploring the genetic architecture of quantitative traits in maize using GWAS, as genomic SNPs were often used in previous GWASs in maize, including leaf architecture 33 , leaf metabolites 34 and disease resistance 35,36 . Most of the newly identified SNPs were mapped to gene regions with an average of 40.3 SNPs per gene, which substantially complemented the maize SNP polymorphisms discovered by genome resequencing 13,14 .…”
Section: Discussionmentioning
confidence: 99%
“…Through deep RNA-seq, we obtained an average of 70 million reads for each inbred line, which resulted in the recovery of 1.03 million high-quality SNPs in the maize genome. The identified SNPs are of significance to the maize research community, especially in exploring the genetic architecture of quantitative traits in maize using GWAS, as genomic SNPs were often used in previous GWASs in maize, including leaf architecture 33 , leaf metabolites 34 and disease resistance 35,36 . Most of the newly identified SNPs were mapped to gene regions with an average of 40.3 SNPs per gene, which substantially complemented the maize SNP polymorphisms discovered by genome resequencing 13,14 .…”
Section: Discussionmentioning
confidence: 99%
“…In each trial, the 866 BC 2 S 3 RILs were grown in a single replicate employing an augmented incomplete randomized blocks design widely used to phenotype large populations (Buckler et al ., 2009; Kump et al ., 2011; Tian et al ., 2011; Huang et al ., 2015). Two maize inbred lines W22 and Mo17 were randomly inserted in each incomplete block as checks.…”
Section: Methodsmentioning
confidence: 99%
“…One example of an automated SNP panel is KASPar from KBioScience (Hertfordshire, UK), which relies on competitive allele-specific PCR, with fluorescent resonance energy transfer detection. This has been used for a range of genetic studies (for example, Tian et al, 2011). An alternative for SNP typing is the Sequenom MassARRAY platform (Hamburg, Germany), which uses single termination mix multiplexed PCR and identifies different SNPs based on their different masses (applied by Thompson et al, 2009).…”
Section: How Can Ngs Technologies Help Us To Get Around These Limitatmentioning
confidence: 99%