ArticleThe New phytologist2022
From cultivar mixtures to allelic mixtures: opposite effects of allelic richness between genotypes and genotype richness in wheat.
Article in The New phytologist, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- A Simplified and Integrated View of Disease Control in Varietal Mixtures Using the Phytobiome Framework.Plant, cell & environment · 2025Review
- The Genetics of Plant-Plant Interactions and Their Cascading Effects on Agroecosystems-from Model Plants to Applications.Plant & cell physiology · 2025Review
- Building microbial synthetic communities: get inspired by the design of synthetic plant communities.The New phytologist · 2025Article
- Breeding in winter wheat (Frontiers in plant science · 2025Article
- Optimizing Clubroot Management and the Role of Canola Cultivar Mixtures.Pathogens (Basel, Switzerland) · 2024Review
- The genetic identity of neighboring plants in intraspecific mixtures modulates disease susceptibility of both wheat and rice.PLoS biology · 2023Article
- Single-gene resolution of diversity-driven overyielding in plant genotype mixtures.Nature communications · 2023Article
- Exploring the future of GM technology in sustainable local food systems in Colombia.Frontiers in genome editing · 2023Article
- Increasing plant group productivity through latent genetic variation for cooperation.PLoS biology · 2022Article
- Nitrogen availability and plant-plant interactions drive leaf silicon concentration in wheat genotypes.Functional ecology · 2022Article
- Shift in beneficial interactions during crop evolution.Evolutionary applications · 2022Review
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11 authors.
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Abstract
Agroecosystem diversification through increased crop genetic diversity could provide multiple services such as improved disease control or increased productivity. However, we still poorly understand how genetic diversity affects agronomic performance. We grew 179 inbred lines of durum wheat in pure stands and in 202 binary mixtures in field conditions. We then tested the effect of allelic richness between genotypes and genotype richness on grain yield and Septoria tritici blotch disease. Allelic richness was tested at 19K single nucleotide polymorphisms distributed along the durum wheat genome. Both genotype richness and allelic richness could be equal to 1 or 2. Mixtures were overall more productive and less diseased than their pure stand components. Yet, we identified one locus at which allelic richness between genotypes was associated with increased disease severity and decreased grain yield. The effect of allelic richness at this locus was stronger than the effect of genotype richness on grain yield (-7.6% vs +5.7%). Our results suggest that positive effects of crop diversity can be reversed by unfavourable allelic associations. This highlights the need to integrate genomic data into crop diversification strategies. More generally, investigating plant-plant interactions at the genomic level is promising to better understand biodiversity-ecosystem functioning relationships.
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