Association mapping by aerial drone reveals 213 genetic associations for Sorghum bicolor biomass traits under drought.

ABSTRACT:

Background

Sorghum bicolor is the fifth most commonly grown cereal worldwide and is remarkable for its drought and abiotic stress tolerance. For these reasons and the large size of biomass varieties, it has been proposed as a bioenergy crop. However, little is known about the genes underlying sorghum's abiotic stress tolerance and biomass yield.

Results

To uncover the genetic basis of drought tolerance in sorghum at a genome-wide level, we undertook a high-density phenomics genome wide association study (GWAS) in which 648 diverse sorghum lines were phenotyped at two locations in California once per week by drone over the course of a growing season. Biomass, height, and leaf area were measured by drone for individual field plots, subjected to two drought treatments and a wel

SUBMITTER: Spindel JE 

PROVIDER: S-EPMC6142696 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature