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Published (Version of Record)CC BY-ND V4.0, Open Access
Journal article
Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population
PLoS ONE, Vol.12(6), e0179715
2017
Abstract
A doubled haploid (DH) population of barley (Hordeum vulgare L.) generated from salinity tolerant genotype CM72 and salinity sensitive variety Gairdner was studied for salinity stress tolerance at germination, seedling emergence and first leaf full expansion growth stages. Germination study was conducted with deionized water, 150 mM and 300 mM NaCl treatments. Seedling stage salinity tolerance was conducted with three treatments: control, 150 mM NaCl added at seedling emergence and first leaf full expansion growth stages. Results from this study revealed transgressive phenotypic segregations for germination percentage and biomass at seedling stage. Twelve QTL were identified on chromosomes 2H–6H each explaining 10–25% of the phenotypic variations. A QTL located at 176.5 cM on chromosome 3H was linked with fresh weight per plant and dry weight per plant in salinity stress induced at first leaf full expansion growth stage, and dry weight per plant in salinity stress induced at seedling emergence. A stable QTL for germination at both 150 and 300 mM salinity stress was mapped on chromosome 2H but distantly located from a QTL linked with seedling stage salinity stress tolerance. QTL, associated markers and genotypes identified in this study play important roles in developing salinity stress tolerant barley varieties.
Details
- Title
- Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population
- Authors/Creators
- T.T. Angessa (Author/Creator) - Murdoch UniversityX-Q Zhang (Author/Creator) - Murdoch UniversityG. Zhou (Author/Creator) - Murdoch UniversityS. Broughton (Author/Creator) - Agriculture and FoodW. Zhang (Author/Creator) - Yangtze UniversityC. Li (Author/Creator) - Murdoch University
- Publication Details
- PLoS ONE, Vol.12(6), e0179715
- Publisher
- Public Library of Science
- Identifiers
- 991005540849007891
- Copyright
- © 2017 Angessa et al.
- Murdoch Affiliation
- School of Veterinary and Life Sciences; Western Barley Genetics Alliance
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- 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