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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1111/nph.17915
|2 doi
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|a pubmed24n1120.xml
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|e rakwb
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|a eng
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| 100 |
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|a Montazeaud, Germain
|e verfasserin
|4 aut
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| 245 |
1 |
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|a From cultivar mixtures to allelic mixtures
|b opposite effects of allelic richness between genotypes and genotype richness in wheat
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 31.03.2022
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|a Date Revised 31.07.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.
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|a 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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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Septoria tritici blotch
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| 650 |
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|a allelic richness
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| 650 |
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|a crop
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|a diversity
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|a genome-wide analysis
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| 650 |
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|a plant-plant interactions
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| 650 |
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4 |
|a varietal mixtures
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|a Flutre, Timothée
|e verfasserin
|4 aut
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|a Ballini, Elsa
|e verfasserin
|4 aut
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|a Morel, Jean-Benoit
|e verfasserin
|4 aut
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|a David, Jacques
|e verfasserin
|4 aut
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|a Girodolle, Johanna
|e verfasserin
|4 aut
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|a Rocher, Aline
|e verfasserin
|4 aut
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|a Ducasse, Aurélie
|e verfasserin
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|a Violle, Cyrille
|e verfasserin
|4 aut
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|a Fort, Florian
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|a Fréville, Hélène
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 233(2022), 6 vom: 20. März, Seite 2573-2584
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|x 1469-8137
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|g volume:233
|g year:2022
|g number:6
|g day:20
|g month:03
|g pages:2573-2584
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|u http://dx.doi.org/10.1111/nph.17915
|3 Volltext
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