Skip to Main content Skip to Navigation
Journal articles

Multi-environment analysis and improved mapping of a yield-related QTL on chromosome 3B of wheat

Abstract : Improved mapping, multi-environment quantitative trait loci (QTL) analysis and dissection of allelic effects were used to define a QTL associated with grain yield, thousand grain weight and early vigour on chromosome 3BL of bread wheat (Triticum aestivum L.) under abiotic stresses. The QTL had pleiotropic effects and showed QTL x environment interactions across 21 diverse environments in Australia and Mexico. The occurrence and the severity of water deficit combined with high temperatures during the growing season affected the responsiveness of this QTL, resulting in a reversal in the direction of allelic effects. The influence of this QTL can be substantial, with the allele from one parent (RAC875) increasing grain yield by up to 12.5 % (particularly in environments where both heat and drought stress occurred) and the allele from the other parent (Kukri) increasing grain yield by up to 9 % in favourable environments. With the application of additional markers and the genotyping of additional recombinant inbred lines, the genetic map in the QTL region was refined to provide a basis for future positional cloning.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-00964319
Contributor : Archive Ouverte Prodinra <>
Submitted on : Monday, March 24, 2014 - 10:46:46 AM
Last modification on : Wednesday, February 24, 2021 - 3:30:12 AM

Links full text

Identifiers

Collections

Citation

Julien Bonneau, Julian Taylor, Boris Parent, Dion Bennett, Matthew Reynolds, et al.. Multi-environment analysis and improved mapping of a yield-related QTL on chromosome 3B of wheat. Theoretical and Applied Genetics, SpringerLink, 2013, 126 (3), pp.747 - 761. ⟨10.1007/s00122-012-2015-3⟩. ⟨hal-00964319⟩

Share

Metrics

Record views

171