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COLNATOR - Caractérisation de la collection nationale de ressources génétiques d’orge

Abstract : The barley national collection, made of 570 French accessions, was evaluated during three years for ten agro-morphological traits in a multisite network (heading, plant height, loading, spike compactness, spike row number, disease susceptibilities). Furthermore, the whole collection was genotyped for a set of 1056 SNPs. Field evaluation results show a wide diversity for all observed traits. The use of empiric selection index on disease traits (barley leaf rust, powdery mildew, leaf blotch, net blotch, Ramularia leaf spot) makes it possible to define two different panels of 43 accessions (winter and spring types) showing high level of resistance for each studied pathogen. From SNPs genotyping data, clustering analysis of the whole collection exhibits the importance of winter vs spring type and spike row number as factors to explain genetic structure. A first approach of GWAS between markers and traits indicates a total of 1666 significant associations (p<0.001). The whole evaluation dataset of this collection will be soon accessible on internet ( and the national collection will be declared as French contribution to TIRPAA (international treaty on genetic resources for food and agriculture).
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Contributor : Nathalie Bernard <>
Submitted on : Friday, May 28, 2021 - 9:57:27 AM
Last modification on : Saturday, May 29, 2021 - 3:08:12 AM


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  • HAL Id : hal-03230122, version 1


Francois Balfourier, Lionel Bardy, Marion Deloche, Florence Exbrayat, Adrien Luguin, et al.. COLNATOR - Caractérisation de la collection nationale de ressources génétiques d’orge. Innovations Agronomiques, INRAE, 2021, 84, pp.145-154. ⟨hal-03230122⟩



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