Proteomic Responses to Drought Vary Widely Among Eight Diverse Genotypes of Rice ( Oryza sativa )

Rice is a critically important food source but yields worldwide are vulnerable to periods of drought. We exposed eight genotypes of upland and lowland rice ( L. ssp. and ) to drought stress at the late vegetative stage, and harvested leaves for label-free shotgun proteomics. Gene ontology analysis w...

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Bibliographic Details
Published in:International journal of molecular sciences 2020-01, Vol.21 (1), p.363
Main Authors: Hamzelou, Sara, Pascovici, Dana, Kamath, Karthik Shantharam, Amirkhani, Ardeshir, McKay, Matthew, Mirzaei, Mehdi, Atwell, Brian J, Haynes, Paul A
Format: Article
Language:English
Subjects:
Drought
Drought resistance
Food sources
Functional analysis
Genotype & phenotype
Genotypes
Heat
Heat shock proteins
Metabolic response
Oryza sativa
Oxidative stress
Peptides
Photosynthesis
Proteomics
Rice
Shotguns
Water shortages
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Summary:Rice is a critically important food source but yields worldwide are vulnerable to periods of drought. We exposed eight genotypes of upland and lowland rice ( L. ssp. and ) to drought stress at the late vegetative stage, and harvested leaves for label-free shotgun proteomics. Gene ontology analysis was used to identify common drought-responsive proteins in vegetative tissues, and leaf proteins that are unique to individual genotypes, suggesting diversity in the metabolic responses to drought. Eight proteins were found to be induced in response to drought stress in all eight genotypes. A total of 213 proteins were identified in a single genotype, 83 of which were increased in abundance in response to drought stress. In total, 10 of these 83 proteins were of a largely uncharacterized function, making them candidates for functional analysis and potential biomarkers for drought tolerance.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms21010363