Accéder directement au contenu Accéder directement à la navigation
Pré-publication, Document de travail

Variation in expression of the HECT E3 ligase UPL3 modulates LEC2 levels, gene expression, seed size and crop yields in Brassica napus

Abstract : Identifying genetic variation that increases crop yields is a primary objective in plant breeding. We have used association analyses of Brassica napus (oilseed rape/canola) accessions to identify variation in the expression of a HECT E3 ligase gene, BnaUPL3.C03, that influences seed size and final yield. We establish a mechanism in which UPL3 mediates the proteasomal degradation of LEC2, a master regulator of seed maturation. Reduced UPL3 expression increases LEC2 protein levels and prolongs expression of lipid biosynthetic genes and seed maturation. Natural variation in BnaUPL3.C03 expression has not yet been exploited in current Brassica napus breeding lines and can therefore be used as a new approach to maximize future yields in this important oil crop.
Liste complète des métadonnées

https://hal.inrae.fr/hal-02790105
Déposant : Migration Prodinra <>
Soumis le : vendredi 5 juin 2020 - 06:00:07
Dernière modification le : mardi 25 août 2020 - 15:20:05

Lien texte intégral

Identifiants

Collections

Citation

Charlotte Miller, Rachel Wells, Neil Mckenzie, Martin Trick, Joshua Ball, et al.. Variation in expression of the HECT E3 ligase UPL3 modulates LEC2 levels, gene expression, seed size and crop yields in Brassica napus. 2018. ⟨hal-02790105⟩

Partager

Métriques

Consultations de la notice

11