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Detection of NAM-A1 natural variants in bread wheat reveals differences in haplotype distribution between a worldwide core collection and european elite germplasm

Cormier Fabien, Throude Mickaël, Ravel Catherine, Le Gouis Jacques, Leveugle Magalie, Lafarge Stéphane, Exbrayat Florence, Duranton Nadine, Praud Sébastien. 2015. Detection of NAM-A1 natural variants in bread wheat reveals differences in haplotype distribution between a worldwide core collection and european elite germplasm. Agronomy (Basel), 5 (4) : pp. 143-151.

Journal article ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total
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Abstract : In wheat, remobilization of nitrogen absorbed before anthesis and regulation of monocarpic senescence is a major issue in breeding for nutrient use efficiency. We identified natural variants of NAM-A1, a gene having the same role as its well-characterized homoeolog NAM-B1, a NAC transcription factor associated with senescence kinetics and nutrient remobilization to the grain. Differences in haplotype frequencies between a worldwide core collection and a panel of European elite varieties were assessed and discussed. Moreover, hypotheses for the loss of function of the most common haplotype in elite European germplasm are discussed. (Résumé d'auteur)

Classification Agris : F30 - Plant genetics and breeding

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

  • Cormier Fabien, Biogemma (FRA) ORCID: 0000-0002-7283-4616
  • Throude Mickaël, Biogemma (FRA)
  • Ravel Catherine, INRA (FRA)
  • Le Gouis Jacques, INRA (FRA)
  • Leveugle Magalie, Biogemma (FRA)
  • Lafarge Stéphane, Biogemma (FRA)
  • Exbrayat Florence, INRA (FRA)
  • Duranton Nadine, Biogemma (FRA)
  • Praud Sébastien, Biogemma (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/587090/)

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