Selection for seed size has uneven effects on specialized metabolite abundance in oat (Avena sativa L.).

ABSTRACT: Plant breeding strategies to optimize metabolite profiles are necessary to develop health-promoting food crops. In oats (Avena sativa L.), seed metabolites are of interest for their antioxidant properties, yet have not been a direct target of selection in breeding. In a diverse oat germplasm panel spanning a century of breeding, we investigated the degree of variation of these specialized metabolites and how it has been molded by selection for other traits, like yield components. We also ask if these patterns of variation persist in modern breeding pools. Integrating genomic, transcriptomic, metabolomic, and phenotypic analyses for three types of seed specialized metabolites-avenanthramides, avenacins, and avenacosides-we found reduced heritable genetic variation in modern germplasm compar

SUBMITTER: Brzozowski LJ 

PROVIDER: S-EPMC9210299 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature