ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2022
Nested association mapping-based GWAS for grain yield and related traits in wheat grown under diverse Australian environments.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 40 citations in OpenAlex.
- An IRAT109 NAM population: Genetic characterization and mapping utility for trait dissection in japonica rice (Oryza sativa L.).The plant genome · 2026Article
- Genetic dissection of cold stress tolerance and yield potential under cold stress in nested synthetic wheat (Triticum aestivum L.) introgression libraries using multi-locus genome-wide association and haplotype analysis.Functional & integrative genomics · 2026Article
- Uncovering yield-related traits loci in Chinese wheat landraces using GWAS.Frontiers in plant science · 2026Article
- A genome-wide association study reveals the genetic architecture of 19 agronomic traits in broomcorn millet (Panicum miliaceum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Identification of Quantitative Trait Loci Associated with Plant Adaptation Traits Using Nested Association Mapping Population.Plants (Basel, Switzerland) · 2024Article
- GWAS elucidated grain yield genetics in Indian spring wheat under diverse water conditions.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Envirotyping within a multi-environment trial allowed identifying genetic determinants of winter oilseed rape yield stability.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- GWAS in a Collection of Bulgarian Old and Modern Bread Wheat Accessions Uncovers Novel Genomic Loci for Grain Protein Content and Thousand Kernel Weight.Plants (Basel, Switzerland) · 2024Article
- Genome-wide association study and development of molecular markers for yield and quality traits in peanut (Arachis hypogaea L.).BMC plant biology · 2024Article
- Identification of novel putative alleles related to important agronomic traits of wheat using robust strategies in GWAS.Scientific reports · 2023Article
- Genomic regions involved in the control of 1,000-kernel weight in wild relative-derived populations of durum wheat.Frontiers in plant science · 2023Article
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageUtilising a nested association mapping (NAM) population-based GWAS, 98 stable marker-trait associations with 127 alleles unique to the exotic parents were detected for grain yield and related traits in wheat. Grain yield, thousand-grain weight, screenings and hectolitre weight are important wheat yield traits. An understanding of their genetic basis is crucial for improving grain yield in breeding programmes. Nested association mapping (NAM) populations are useful resources for the dissection of the genetic basis of complex traits such as grain yield and related traits in wheat. Coupled with phenotypic data collected from multiple environments, NAM populations have the power to detect quantitative trait loci and their multiple alleles, providing germplasm that can be incorporated into breeding programmes. In this study, we evaluated a large-scale wheat NAM population with two recurrent parents in unbalanced trials in nine diverse Australian field environments over three years. By applying a single-stage factor analytical linear mixed model (FALMM) to the NAM multi-environment trials (MET) data and conducting a genome-wide association study (GWAS), we detected 98 stable marker-trait associations (MTAs) with their multiple alleles. 74 MTAs had 127 alleles that were derived from the exotic parents and were absent in either of the two recurrent parents. The exotic alleles had favourable effects on 46 MTAs of the 74 MTAs, for grain yield, thousand-grain weight, screenings and hectolitre weight. Two NAM RILs with consistently high yield in multiple environments were also identified, highlighting the potential of the NAM population in supporting plant breeding through provision of germplasm that can be readily incorporated into breeding programmes. The identified beneficial exotic alleles introgressed into the NAM population provide potential target alleles for the genetic improvement of wheat and further studies aimed at pinpointing the underlying genes.
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