Journal article
Genome-wide association study of salinity tolerance during germination in barley (Hordeum vulgare L.)
Frontiers in Plant Science, Vol.11, Article 118
2020
Abstract
Barley seeds need to be able to germinate and establish seedlings in saline soils in Mediterranean-type climates. Despite being a major cereal crop, barley has few reported quantitative trait loci (QTL) and candidate genes underlying salt tolerance at the germination stage. Breeding programs targeting salinity tolerance at germination require an understanding of genetic loci and alleles in the current germplasm. In this study, we investigated seed-germination-related traits under control and salt stress conditions in 350 diverse barley accessions. A genome-wide association study, using ~24,000 genetic markers, was undertaken to detect marker-trait associations (MTA) and the underlying candidate genes for salinity tolerance during germination. We detected 19 loci containing 52 significant salt-tolerance-associated markers across all chromosomes, and 4 genes belonging to 4 family functions underlying the predicted MTAs. Our results provide new genetic resources and information to improve salt tolerance at germination in future barley varieties via genomic and marker-assisted selection and to open up avenues for further functional characterization of the identified candidate genes.
Details
- Title
- Genome-wide association study of salinity tolerance during germination in barley (Hordeum vulgare L.)
- Authors/Creators
- E. Mwando (Author/Creator) - Murdoch UniversityY. Han (Author/Creator) - Murdoch UniversityT.T. Angessa (Author/Creator) - Government of Western AustraliaG. Zhou (Author/Creator) - Government of Western AustraliaC.B. Hill (Author/Creator) - Murdoch UniversityX-Q Zhang (Author/Creator) - Murdoch UniversityC. Li (Author/Creator) - Government of Western Australia
- Publication Details
- Frontiers in Plant Science, Vol.11, Article 118
- Publisher
- Frontiers
- Identifiers
- 991005540221807891
- Copyright
- © 2020 The Author(s).
- Murdoch Affiliation
- College of Science, Health, Engineering and Education; State Agricultural Biotechnology Centre; Western Barley Genetics Alliance
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Metrics
91 File views/ downloads
80 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.49 Plant Stress Responses
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science