Novel QTLs for salinity tolerance revealed by genome-wide association studies of biomass, chlorophyll and tissue ion content in 176 rice landraces from Bangladesh

Autor: Zeba I. Seraj, G. M. Nurnabi Azad Jewel, Nafis Ul Alam, Tomalika Azim
Rok vydání: 2021
Předmět:
Chlorophyll
Pigments
Salinity
Leaves
Multifactorial Inheritance
Candidate gene
Chloroplasts
Physiology
Genome-wide association study
Plant Science
Physical Chemistry
Plant Resistance to Abiotic Stress
Additive genetic effects
Biomass
Materials
Abiotic component
Bangladesh
Multidisciplinary
Ecology
Plant Anatomy
food and beverages
Salt-Tolerant Plants
Genomics
Salt Tolerance
Chemistry
Phenotypes
Phenotype
Plant Physiology
Physical Sciences
Trait
Medicine
Cellular Structures and Organelles
Cellular Types
Research Article
Crops
Agricultural
Farms
Genotype
Science
Plant Cell Biology
Materials Science
Quantitative Trait Loci
Bioengineering
Biology
Crop
Stress
Physiological
Plant-Environment Interactions
Plant Cells
Genetics
Genome-Wide Association Studies
Plant Defenses
Genetic Testing
Organic Pigments
business.industry
Plant Ecology
Crop yield
Ecology and Environmental Sciences
Biology and Life Sciences
Computational Biology
Human Genetics
Oryza
Cell Biology
Plant Pathology
Genome Analysis
Biotechnology
Chemical Properties
Genetic Loci
Polygene
business
Genome-Wide Association Study
Zdroj: PLoS ONE
PLoS ONE, Vol 16, Iss 11 (2021)
PLoS ONE, Vol 16, Iss 11, p e0259456 (2021)
ISSN: 1932-6203
Popis: Farmland is on the decline and worldwide food security is at risk. Rice is the staple of choice for over half the Earth’s people. To sustain current demands and ascertain a food secure future, substandard farmland affected by abiotic stresses must be utilized. For rapid crop improvement, a broader understanding of polygenic traits like stress tolerance and crop yield is indispensable. To this end, the hidden diversity of resilient and neglected wild varieties must be traced back to their genetic roots. In this study, we separately assayed 11 phenotypes in a panel of 176 diverse accessions predominantly comprised of local landraces from Bangladesh. We compiled high resolution sequence data for these accessions. We collectively studied the ties between the observed phenotypic differences and the examined additive genetic effects underlying these variations. We applied a fixed effect model to associate phenotypes with genotypes on a genomic scale. Discovered QTLs were mapped to known genes. Our explorations yielded 13 QTLs related to various traits in multiple trait classes. 10 identified QTLs were equivalent to findings from previous studies. Integrative analysis assumes potential novel functionality for a number of candidate genes. These findings will usher novel avenues for the bioengineering of high yielding crops of the future fortified with genetic defenses against abiotic stressors.
Databáze: OpenAIRE
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