Genome-wide association study reveals genomic regions controlling root and shoot traits at late growth stages in wheat.

ABSTRACT:

Background and aims

Root system morphology is important for sustainable agriculture, but the genetic basis of root traits and their relationship to shoot traits remain to be elucidated. The aim of the present study was to dissect the genetic basis of root traits at late growth stages and its implications on shoot traits in wheat.

Methods

Among 323 wheat accessions, we investigated phenotypic differences in root traits at booting and mid-grain fill stages in PVC tubes, shoot traits including plant height (PH), canopy temperature (CT) and grain yield per plant (YPP) in a field experiment, and performed a genome-wide association study with a Wheat 660K SNP Array.

Key results

Deep-rooted accessions had lower CT and higher YPP than those with shallow roots, but no signific

SUBMITTER: Li L 

PROVIDER: S-EPMC6881226 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature