Genetic architecture and temporal patterns of biomass accumulation in spring barley revealed by image analysis.

ABSTRACT:

Background

Genetic mapping of phenotypic traits generally focuses on a single time point, but biomass accumulates continuously during plant development. Resolution of the temporal dynamics that affect biomass recently became feasible using non-destructive imaging.

Results

With the aim to identify key genetic factors for vegetative biomass formation from the seedling stage to flowering, we explored growth over time in a diverse collection of two-rowed spring barley accessions. High heritabilities facilitated the temporal analysis of trait relationships and identification of quantitative trait loci (QTL). Biomass QTL tended to persist only a short period during early growth. More persistent QTL were detected around the booting stage. We identified seven major biomass QTL, whic

SUBMITTER: Neumann K 

PROVIDER: S-EPMC5554006 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature