Association mapping for root architectural traits in durum wheat seedlings as related to agronomic performance.

ABSTRACT: Association mapping provides useful insights on the genetic architecture of quantitative traits across a large number of unrelated genotypes, which in turn allows an informed choice of the lines to be crossed for a more accurate characterization of major QTLs in a biparental genetic background. In this study, seedlings of 183 durum wheat elite accessions were evaluated in order to identify QTLs for root system architecture (RSA). The QTLs identified were compared with QTLs detected for grain yield and its component traits, plant height and peduncle length measured in a previous study where the same accessions were evaluated in 15 field trials with a broad range of soil moisture availability and productivity (Maccaferri et al. in J Exp Bot 62:409-438, 2011). The following RSA features were

SUBMITTER: Cane MA 

PROVIDER: S-EPMC4257993 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature