ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2017
Is there an optimum level of diversity in utilization of genetic resources?
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed.
- Genetic architecture and functional consequences of lateral root length in maize.Journal of experimental botany · 2026Article
- Genomic loci associated with Fusarium stalk rot resistance and related agronomic traits in maize.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Native alleles at lhcb6 shape photosynthetic efficiency and early growth in maize.Scientific reports · 2026Article
- Local Selection Shaped the Diversity of European Maize Landraces.Molecular ecology · 2025Article
- Evolution of population structure in a commercial European hybrid dent maize breeding program and consequences on genetic diversity.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Embracing native diversity to enhance the maximum quantum efficiency of photosystem II in maize.Plant physiology · 2024Article
- Optimizing selection based on BLUPs or BLUEs in multiple sets of genotypes differing in their population parameters.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Consistent prokaryotic community patterns along the radial root axis of twoFrontiers in microbiology · 2024Article
- Influence of the mating design on the additive genetic variance in plant breeding populations.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Improving Yield and Yield Stability in Winter Rye by Hybrid Breeding.Plants (Basel, Switzerland) · 2022Review
- Genetic diversity of European maize landraces: Dataset on the molecular and phenotypic variation of derived doubled-haploid populations.Data in brief · 2022Article
- Theoretical and experimental assessment of genome-based prediction in landraces of allogamous crops.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- High-resolution association mapping with libraries of immortalized lines from ancestral landraces.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- How imputation can mitigate SNP ascertainment Bias.BMC genomics · 2021Article
- Exploiting genetic diversity in two European maize landraces for improving Gibberella ear rot resistance using genomic tools.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- How array design creates SNP ascertainment bias.PloS one · 2021Article
- Intercontinental trials reveal stable QTL for Northern corn leaf blight resistance in Europe and in Brazil.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- Discovery of beneficial haplotypes for complex traits in maize landraces.Nature communications · 2020Article
- European maize genomes highlight intraspecies variation in repeat and gene content.Nature genetics · 2020Article
- Selective Loss of Diversity in Doubled-Haploid Lines from European Maize Landraces.G3 (Bethesda, Md.) · 2020Article
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Authors and funding
6 authors.
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Abstract
key messageCapitalizing upon the genomic characteristics of long-term random mating populations, sampling from pre-selected landraces is a promising approach for broadening the genetic base of elite germplasm for quantitative traits. Genome-enabled strategies for harnessing untapped allelic variation of landraces are currently evolving. The success of such approaches depends on the choice of source material. Thus, the analysis of different strategies for sampling allelic variation from landraces and their impact on population diversity and linkage disequilibrium (LD) is required to ensure the efficient utilization of diversity. We investigated the impact of different sampling strategies on diversity parameters and LD based on high-density genotypic data of 35 European maize landraces each represented by more than 20 individuals. On average, five landraces already captured ~95% of the molecular diversity of the entire dataset. Within landraces, absence of pronounced population structure, consistency of linkage phases and moderate to low LD levels were found. When combining data of up to 10 landraces, LD decay distances decreased to a few kilobases. Genotyping 24 individuals per landrace with 5k SNPs was sufficient for obtaining representative estimates of diversity and LD levels to allow an informed pre-selection of landraces. Integrating results from European with Central and South American landraces revealed that European landraces represent a unique and diverse spectrum of allelic variation. Sampling strategies for harnessing allelic variation from landraces depend on the study objectives. If the focus lies on the improvement of elite germplasm for quantitative traits, we recommend sampling from pre-selected landraces, as it yields a wide range of diversity, allows optimal marker imputation, control for population structure and avoids the confounding effects of strong adaptive alleles.
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