ArticlePloS one2015
Genome wide association study for drought, aflatoxin resistance, and important agronomic traits of maize hybrids in the sub-tropics.
Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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44 citing papers in PubMed, 104 citations in OpenAlex.
- Multienvironment multilocus association mapping reveals genomic regions for drought-related traits in tropical maize.G3 (Bethesda, Md.) · 2026Article
- Genome-wide association identifies and validates genomic region controlling grain yield and agronomic traits in extra-early orange maize inbred lines under drought.Scientific reports · 2026Article
- Agroecological drivers of aflatoxin contamination in maize-based systems: a review.Frontiers in plant science · 2026Review
- SeqSNP-based genic markers reveal genetic architecture and candidate genes for low nitrogen tolerance in tropical maize inbred lines.Frontiers in plant science · 2025Article
- Temporally resolved growth patterns reveal novel information about the polygenic nature of complex quantitative traits.The Plant journal : for cell and molecular biology · 2024Article
- Near-infrared reflectance spectroscopy phenomic prediction can perform similarly to genomic prediction of maize agronomic traits across environments.The plant genome · 2024Article
- QTL mapping for flowering time in a maize-teosinte population under well-watered and water-stressed conditions.Molecular breeding : new strategies in plant improvement · 2023Article
- Genome-wide association study presents insights into the genetic architecture of drought tolerance in maize seedlings under field water-deficit conditions.Frontiers in plant science · 2023Article
- Investigating the genetic basis of maize ear characteristics: a comprehensive genome-wide study utilizing high-throughput phenotypic measurement method and system.Frontiers in plant science · 2023Article
- Comprehensive meta-analysis of QTL and gene expression studies identify candidate genes associated withFrontiers in plant science · 2023Article
- Article
- Genetic Dissection of Phosphorus Use Efficiency and Genotype-by-Environment Interaction in Maize.International journal of molecular sciences · 2022Article
- Article
- Meta-QTL analysis and candidate genes identification for various abiotic stresses in maize (Molecular breeding : new strategies in plant improvement · 2022Article
- Dissection of Maize Drought Tolerance at the Flowering Stage Using Genome-Wide Association Studies.Genes · 2022Article
- Article
- Recent Advances for Drought Stress Tolerance in Maize (Frontiers in plant science · 2022Review
- Improving drought tolerance in maize: Tools and techniques.Frontiers in genetics · 2022Review
- Genome-Wide Association Analyses to Identify SNPs Related to Drought Tolerance.Methods in molecular biology (Clifton, N.J.) · 2022Article
- Identification of Candidate Genes for Drought Tolerance at Maize Seedlings Using Genome-Wide Association.Iranian journal of biotechnology · 2021Article
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The primary maize (Zea mays L.) production areas are in temperate regions throughout the world and this is where most maize breeding is focused. Important but lower yielding maize growing regions such as the sub-tropics experience unique challenges, the greatest of which are drought stress and aflatoxin contamination. Here we used a diversity panel consisting of 346 maize inbred lines originating in temperate, sub-tropical and tropical areas testcrossed to stiff-stalk line Tx714 to investigate these traits. Testcross hybrids were evaluated under irrigated and non-irrigated trials for yield, plant height, ear height, days to anthesis, days to silking and other agronomic traits. Irrigated trials were also inoculated with Aspergillus flavus and evaluated for aflatoxin content. Diverse maize testcrosses out-yielded commercial checks in most trials, which indicated the potential for genetic diversity to improve sub-tropical breeding programs. To identify genomic regions associated with yield, aflatoxin resistance and other important agronomic traits, a genome wide association analysis was performed. Using 60,000 SNPs, this study found 10 quantitative trait variants for grain yield, plant and ear height, and flowering time after stringent multiple test corrections, and after fitting different models. Three of these variants explained 5-10% of the variation in grain yield under both water conditions. Multiple identified SNPs co-localized with previously reported QTL, which narrows the possible location of causal polymorphisms. Novel significant SNPs were also identified. This study demonstrated the potential to use genome wide association studies to identify major variants of quantitative and complex traits such as yield under drought that are still segregating between elite inbred lines.
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