Protein content and HvNAM alleles in Nordic barley (Hordeum vulgare) during a century of breeding.

ABSTRACT:

Background

Barley has been bred for more than a century in the Nordic countries, with dramatic improvements of yield traits. In this study we investigate if this has come at the cost of lower grain protein and micronutrient (iron, zinc) content, by analysing 80 accessions representing four different improvement stages. We further re-sequenced the two grain protein content associated genes HvNAM-1 and HvNAM-2 in full and performed expression analyses of the same genes to search for genetic associations with nutrient content.

Results

We found higher thousand grain weight in barley landraces and in accessions from the late improvement group compared to accessions from the mid of the twentieth century. Straw length was much reduced in late stage accessions. No significant tempor

SUBMITTER: Hagenblad J 

PROVIDER: S-EPMC8802435 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature