Journal article
Characterization of a Thermo-Inducible Chlorophyll-deficient mutant in barley
Frontiers in Plant Science, Vol.8
2017
Abstract
Leaf color is an important trait for not only controlling crop yield but also monitoring plant status under temperature stress. In this study, a thermo-inducible chlorophyll-deficient mutant, named V-V-Y, was identified from a gamma-radiated population of the barley variety Vlamingh. The leaves of the mutant were green under normal growing temperature but turned yellowish under high temperature in the glasshouse experiment. The ratio of chlorophyll a and chlorophyll b in the mutant declined much faster in the first 7–9 days under heat treatment. The leaves of V-V-Y turned yellowish but took longer to senesce under heat stress in the field experiment. Genetic analysis indicated that a single nuclear gene controlled the mutant trait. The mutant gene (vvy) was mapped to the long arm of chromosome 4H between SNP markers 1_0269 and 1_1531 with a genetic distance of 2.2 cM and a physical interval of 9.85 Mb. A QTL for grain yield was mapped to the same interval and explained 10.4% of the yield variation with a LOD score of 4. This QTL is coincident with the vvy gene interval that is responsible for the thermo-inducible chlorophyll-deficient trait. Fine mapping, based on the barley reference genome sequence, further narrowed the vvy gene to a physical interval of 0.428 Mb with 11 annotated genes. This is the first report of fine mapping a thermo-inducible chlorophyll-deficient gene in barley.
Details
- Title
- Characterization of a Thermo-Inducible Chlorophyll-deficient mutant in barley
- Authors/Creators
- R. Wang (Author/Creator) - Yangtze UniversityF. Yang (Author/Creator) - Yangtze UniversityX-Q Zhang (Author/Creator) - Murdoch UniversityD. Wu (Author/Creator) - Zhejiang UniversityC. Tan (Author/Creator) - Murdoch UniversityS. Westcott (Author/Creator) - Murdoch UniversityS. Broughton (Author/Creator) - Department of Primary Industries and Regional DevelopmentC. Li (Author/Creator) - Murdoch UniversityW. Zhang (Author/Creator) - Yangtze UniversityY. Xu (Author/Creator) - Yangtze University
- Publication Details
- Frontiers in Plant Science, Vol.8
- Publisher
- Frontiers
- Identifiers
- 991005541747307891
- Copyright
- © 2017 Wang, Yang, Zhang, Wu, Tan, Westcott, Broughton, Li, Zhang and Xu.
- Murdoch Affiliation
- State Agricultural Biotechnology Centre; 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
- 3.171 Photoproductivity
- 3.171.129 Photosynthesis Mechanisms
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science