Abstract
The decrease in water resources is a serious threat to food security world-wide. In this regard, a genome-wide association study (GWAS) was conducted to identify grain yield and quality-related genes/loci under normal and water-deficit conditions. Highly significant differences were exhibited among genotypes under both conditions for all studied traits. Water-deficit stress caused a reduction in grains yield and an increase in grains protein contents (GPC) and gluten contents (GLC). Population structure divided the 96 genotypes into four sub-populations. Out of 72 significant marker-trait associations (MTAs), 28 and 44 were observed under normal and water-deficit stress conditions, respectively. Pleiotropic loci (RAC875_s117925_244, BobWhite_c23828_341 and wsnp_CAP8_c334_304253) for yield and quality traits were identified on chromosomes 5A, 6B and 7B, respectively, under normal conditions. Under a water-deficit condition, the pleiotropic loci (Excalibur_c48047_90, Tdurum_contig100702_265 and BobWhite_c19429_95) for grain yield per plant (GYP), GPC and GLC were identified on chromosomes 3A, 4A and 7B, respectively. The pleiotropic loci (BS00063551_51 and RAC875_c28721_290) for GPC and GLC on chromosome 1B and 3A, respectively, were found under both conditions. Besides the validation of previously reported MTAs, some new MTAs were identified for flag leaf area (FLA), thousand grain weight (TGW), GYP, GPC and GLC under normal and water-deficit conditions. Twenty SNPs associated with the traits were mapped in the coding DNA sequence (CDS) of the respective candidate genes. The protein functions of the identified candidate genes were predicted and discussed. Isolation and characterization of the candidate genes, wherein, SNPs were mapped in CDS will result in discovering novel genes underpinning water-deficit tolerance in bread wheat.
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Claims 12
Claim · model-written summary
Genotypes differed significantly for all studied traits under both conditions.
- Taxon
- Bread Wheat
Triticum aestivumt0 - Material
- genotypese0
- Outcome
- all studied traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highly significant differences were exhibited among genotypes under both conditions for all studied traits.”
t0“Bread Wheat”
Claim · model-written summary
Water deficit reduced grain yield.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- Water-deficit stresse0
- Outcome
- grains yielde0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water-deficit stress caused a reduction in grains yield”
t0“Bread Wheat”
Claim · model-written summary
Water deficit increased grain protein content.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- Water-deficit stresse0
- Outcome
- grains protein contentse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water-deficit stress caused a reduction in grains yield and an increase in grains protein contents (GPC) and gluten contents (GLC).”
t0“Bread Wheat”
Claim · model-written summary
Water deficit increased gluten content.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- Water-deficit stresse0
- Outcome
- gluten contentse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water-deficit stress caused a reduction in grains yield and an increase in grains protein contents (GPC) and gluten contents (GLC).”
t0“Bread Wheat”
Claim · model-written summary
The 96 genotypes formed four subpopulations.
- Taxon
- Bread WheatTriticum aestivumt0
- Material
- 96 genotypese0
- Outcome
- four sub-populationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Population structure divided the 96 genotypes into four sub-populations.”
t0“Bread Wheat”
Claim · model-written summary
There were 28 significant marker trait associations under normal conditions.
- Taxon
- Bread WheatTriticum aestivumt0
- Outcome
- marker-trait associationse0
- Value
- 28e0
- Qualifier
- normale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Out of 72 significant marker-trait associations (MTAs), 28 and 44 were observed under normal and water-deficit stress conditions, respectively.”
t0“Bread Wheat”
Claim · model-written summary
There were 44 significant marker trait associations under water deficit.
- Taxon
- Bread WheatTriticum aestivumt0
- Outcome
- marker-trait associationse0
- Value
- 44e0
- Qualifier
- water-deficit stress conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Out of 72 significant marker-trait associations (MTAs), 28 and 44 were observed under normal and water-deficit stress conditions, respectively.”
t0“Bread Wheat”
Claim · model-written summary
Three pleiotropic loci for yield and quality traits were identified under normal conditions.
- Taxon
- Bread WheatTriticum aestivumt0
- Gene
- RAC875_s117925_244, BobWhite_c23828_341 and wsnp_CAP8_c334_304253e0
- Outcome
- yield and quality traitse0
- Qualifier
- under normal conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pleiotropic loci (RAC875_s117925_244, BobWhite_c23828_341 and wsnp_CAP8_c334_304253) for yield and quality traits were identified on chromosomes 5A, 6B and 7B, respectively, under normal conditions.”
t0“Bread Wheat”
Claim · model-written summary
Three pleiotropic loci for yield and quality traits were identified under water deficit.
- Taxon
- Bread WheatTriticum aestivumt0
- Gene
- Excalibur_c48047_90, Tdurum_contig100702_265 and BobWhite_c19429_95e0
- Outcome
- grain yield per plant (GYP), GPC and GLCe0
- Qualifier
- water-deficit conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under a water-deficit condition, the pleiotropic loci (Excalibur_c48047_90, Tdurum_contig100702_265 and BobWhite_c19429_95) for grain yield per plant (GYP), GPC and GLC were identified on chromosomes 3A, 4A and 7B, respectively.”
t0“Bread Wheat”
Claim · model-written summary
Two pleiotropic loci for grain protein and gluten content occurred under both conditions.
- Taxon
- Bread WheatTriticum aestivumt0
- Gene
- BS00063551_51 and RAC875_c28721_290e0
- Outcome
- GPC and GLCe0
- Qualifier
- under both conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pleiotropic loci (BS00063551_51 and RAC875_c28721_290) for GPC and GLC on chromosome 1B and 3A, respectively, were found under both conditions.”
t0“Bread Wheat”
Claim · model-written summary
New marker trait associations were identified for flag leaf area, thousand grain weight, yield, protein and gluten.
- Taxon
- Bread WheatTriticum aestivumt0
- Outcome
- flag leaf area (FLA), thousand grain weight (TGW), GYP, GPC and GLCe0
- Qualifier
- under normal and water-deficit conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“some new MTAs were identified for flag leaf area (FLA), thousand grain weight (TGW), GYP, GPC and GLC under normal and water-deficit conditions.”
t0“Bread Wheat”
Claim · model-written summary
Twenty trait associated SNPs mapped to candidate gene coding sequences.
- Taxon
- Bread WheatTriticum aestivumt0
- Gene
- candidate genese0
- Outcome
- SNPs associated with the traitse0
- Value
- Twenty SNPse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Twenty SNPs associated with the traits were mapped in the coding DNA sequence (CDS) of the respective candidate genes.”
t0“Bread Wheat”
The same questions in other papers
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See all 632 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.