Genome-wide association mapping of growth dynamics detects time-specific and general quantitative trait loci.

ABSTRACT: Growth is a complex trait determined by the interplay between many genes, some of which play a role at a specific moment during development whereas others play a more general role. To identify the genetic basis of growth, natural variation in Arabidopsis rosette growth was followed in 324 accessions by a combination of top-view imaging, high-throughput image analysis, modelling of growth dynamics, and end-point fresh weight determination. Genome-wide association (GWA) mapping of the temporal growth data resulted in the detection of time-specific quantitative trait loci (QTLs), whereas mapping of model parameters resulted in another set of QTLs related to the whole growth curve. The positive correlation between projected leaf area (PLA) at different time points during the course of the expe

SUBMITTER: Bac-Molenaar JA 

PROVIDER: S-EPMC4585414 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature