ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2014
A first step toward the development of a barley NAM population and its utilization to detect QTLs conferring leaf rust seedling resistance.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 47 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
- Discovering common and population-specific QTLs for leaf rust resistance in different Barley populations.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Korean Soybean Nested Association Mapping (K-SoyNAM) population: genetic linkage map, genetic mapping, and genotype imputation.BMC genomics · 2026Article
- Identification of Quantitative Trait Loci Associated with Plant Adaptation Traits Using Nested Association Mapping Population.Plants (Basel, Switzerland) · 2024Article
- Genetic dissection of maize plant architecture using a novel nested association mapping population.The plant genome · 2022Article
- Identification of QTLs conferring resistance to scald (Rhynchosporium commune) in the barley nested association mapping population HEB-25.BMC genomics · 2020Article
- Ten Years of the Maize Nested Association Mapping Population: Impact, Limitations, and Future Directions.The Plant cell · 2020Review
- QTL mapping for yield-related traits in wheat based on four RIL populations.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Exploration of the Yield Potential of Mesoamerican Wild Common Beans From Contrasting Eco-Geographic Regions by Nested Recombinant Inbred Populations.Frontiers in plant science · 2020Article
- Genetic dissection of quantitative and qualitative traits using a minimum set of barley Recombinant Chromosome Substitution Lines.BMC plant biology · 2018Article
- Genome-wide association of yield traits in a nested association mapping population of barley reveals new gene diversity for future breeding.Journal of experimental botany · 2018Article
- Contrasting genetic regulation of plant development in wild barley grown in two European environments revealed by nested association mapping.Journal of experimental botany · 2018Article
- Article
- Detecting the QTL-allele system conferring flowering date in a nested association mapping population of soybean using a novel procedure.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2017Article
- Investigating successive Australian barley breeding populations for stable resistance to leaf rust.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2017Article
- Quantitative trait loci from identification to exploitation for crop improvement.Plant cell reports · 2017Review
- Article
- MAGIC populations in crops: current status and future prospects.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2015Review
- Modelling the genetic architecture of flowering time control in barley through nested association mapping.BMC genomics · 2015Article
- Article
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageWe suggest multi-parental nested association mapping as a valuable innovation in barley genetics, which increases the power to map quantitative trait loci and assists in extending genetic diversity of the elite barley gene pool. Plant genetic resources are a key asset to further improve crop species. The nested association mapping (NAM) approach was introduced to identify favorable genes in multi-parental populations. Here, we report toward the development of the first explorative barley NAM population and demonstrate its usefulness in a study on mapping quantitative trait loci (QTLs) for leaf rust resistance. The NAM population HEB-5 was developed from crossing and backcrossing five exotic barley donors with the elite barley cultivar 'Barke,' resulting in 295 NAM lines in generation BC1S1. HEB-5 was genetically characterized with 1,536 barley SNPs. Across HEB-5 and within the NAM families, no deviation from the expected genotype and allele frequencies was detected. Genetic similarity between 'Barke' and the NAM families ranged from 78.6 to 83.1 %, confirming the backcrossing step during population development. To explore its usefulness, a screen for leaf rust (Puccinia hordei) seedling resistance was conducted. Resistance QTLs were mapped to six barley chromosomes, applying a mixed model genome-wide association study. In total, four leaf rust QTLs were detected across HEB-5 and four QTLs within family HEB-F23. Favorable exotic QTL alleles reduced leaf rust symptoms on two chromosomes by 33.3 and 36.2 %, respectively. The located QTLs may represent new resistance loci or correspond to new alleles of known resistance genes. We conclude that the exploratory population HEB-5 can be applied to mapping and utilizing exotic QTL alleles of agronomic importance. The NAM concept will foster the evaluation of the genetic diversity, which is present in our primary barley gene pool.
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