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Genetic determinants of indirect genetic effects: GWAS in a bread wheat MAGIC population

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Abstract

For the agroecological transition, intra-plot diversification is a major agroecological lever, and we focused here on varietal mixtures. For wheat, such mixed stands are known to provide a slightly higher yield (overyielding) than the mean of their pure stands but with a large variance (Borg et al, 2018). However, little is known about the underlying genetic determinism of overyielding. We mobilized here a quantitative genetics framework that takes into account not only the effects of genes of a genotype on its own phenotype, the ”direct” genetic effects, DGEs, but also the effects of genes of the other genotypes with which it is mixed, the so-called ”indirect” genetic effects, IGEs (Bijma, 2014).
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Dates and versions

hal-03795170 , version 1 (03-10-2022)

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  • HAL Id : hal-03795170 , version 1

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Maxence Remérand, Jérôme Enjalbert, Timothée Flutre. Genetic determinants of indirect genetic effects: GWAS in a bread wheat MAGIC population. XVIIIth Eucarpia Biometrics in Plant Breeding Conference, Sep 2022, Gif-sur-Yvette, France. . ⟨hal-03795170⟩
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