Strong temporal dynamics of QTL action on plant growth progression revealed through high-throughput phenotyping in canola.

ABSTRACT: A major challenge of plant biology is to unravel the genetic basis of complex traits. We took advantage of recent technical advances in high-throughput phenotyping in conjunction with genome-wide association studies to elucidate genotype-phenotype relationships at high temporal resolution. A diverse Brassica napus population from a commercial breeding programme was analysed by automated non-invasive phenotyping. Time-resolved data for early growth-related traits, including estimated biovolume, projected leaf area, early plant height and colour uniformity, were established and complemented by fresh and dry weight biomass. Genome-wide SNP array data provided the framework for genome-wide association analyses. Using time point data and relative growth rates, multiple robust main effect marker

SUBMITTER: Knoch D 

PROVIDER: S-EPMC6920335 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature