The double round-robin population unravels the genetic architecture of grain size in barley.

ABSTRACT: Grain number, size and weight primarily determine the yield of barley. Although the genes regulating grain number are well studied in barley, the genetic loci and the causal gene for sink capacity are poorly understood. Therefore, the primary objective of our work was to dissect the genetic architecture of grain size and weight in barley. We used a multi-parent population developed from a genetic cross between 23 diverse barley inbreds in a double round-robin design. Seed size-related parameters such as grain length, grain width, grain area and thousand-grain weight were evaluated in the HvDRR population comprising 45 recombinant inbred line sub-populations. We found significant genotypic variation for all seed size characteristics, and observed 84% or higher heritability across four envir

SUBMITTER: Shrestha A 

PROVIDER: S-EPMC9730814 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature