Caractérisation phénotypique et moléculaire de la collection nationale de ressources génétiques de blé tendre
| Autor: | Balfourier, François |
|---|---|
| Přispěvatelé: | Génétique Diversité et Ecophysiologie des Céréales (GDEC), Institut National de la Recherche Agronomique (INRA)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de la Recherche Agronomique (INRA) |
| Jazyk: | francouzština |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Innovations Agronomiques Innovations Agronomiques, INRA, 2014, 35, pp.181-191 Innovations Agronomiques, INRAE, 2014, 35, pp.181-191 |
| ISSN: | 1958-5853 |
| Popis: | The bread wheat national collection, gathering 1783 French accessions, was evaluated during threeyears for ten agro-morphological traits in a multisite network of private breeders. Furthermore, the wholecollection was genotyped for a set of 42 microsatellite loci. Field evaluation results show a wide diversityfor all observed traits. ANOVA performed on heading date, plant height, spike density and lodgingsusceptibility indicates both high significant genotype and year effect, without interaction. The use ofempiric selection index on disease traits (yellow and brown rusts, septoria, fusarium and powderymildew) makes it possible to define different panels of accessions showing high level of resistance foreach specific pathogen.Molecular analysis also reveals a large diversity at neutral level. From genotyping data, clusteringanalysis of the whole collection exhibits the importance of registration year effect on structure of thewhole collection. A first approach of association genetics between markers and traits indicates a total of130 significant associations (p |
| Databáze: | OpenAIRE |
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