Genome-wide association analysis unveils novel QTLs for seminal root system architecture traits in Ethiopian durum wheat.

ABSTRACT:

Background

Genetic improvement of root system architecture is essential to improve water and nutrient use efficiency of crops or to boost their productivity under stress or non-optimal soil conditions. One hundred ninety-two Ethiopian durum wheat accessions comprising 167 historical landraces and 25 modern cultivars were assembled for GWAS analysis to identify QTLs for root system architecture (RSA) traits and genotyped with a high-density 90 K wheat SNP array by Illumina.

Results

Using a non-roll, paper-based root phenotyping platform, a total of 2880 seedlings and 14,947 seminal roots were measured at the three-leaf stage to collect data for total root length (TRL), total root number (TRN), root growth angle (RGA), average root length (ARL), bulk root dry weight (RDW), ind

SUBMITTER: Alemu A 

PROVIDER: S-EPMC7789649 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature