Fig 1.
Percent reduction in grain yield under stress and non stress conditions.
R_D is reduction in grain yield under drought stress R_H percent reduction in grain yield under heat stress and R_HD percent reduction in grain yield under combined drought and heat stress.
Fig 2.
The reduction in performance induced by exposure to abiotic stress.
Each column represents a treatment regime while bars at top of column represents the standard error bar.
Fig 3.
STRUCTURE analysis used to define genetic relationships in the AM panel.
Δk plot, with k ranging from 1–10.
Fig 4.
STRUCTURE analysis used to define genetic relationships in the AM panel.
Each horizontal entry represents one AM panel entry. The existence of five sub-populations was inferred.
Fig 5.
MTAs derived from the AM analysis.
The number of MTAs significant at P<0.001 and FDR < 0.05 under each stress regime. Sig MTAs: Marker trait associations significant at P<0.001. Sig at FDR: Marker trait associations significant at FDR<0.05. C: Control, D: Drought, H: Heat HD: Combined Heat and Drought stress.
Table 1.
Loci contributing variation in yield traits and yield related traits in the AM panel plants grown under four treatment regimes: Non-stressed ([C]), high temperature ([H]), drought ([D]) and combined high temperature and drought ([H+D]).
Fig 6.
Percentage of genotypes containing major and minor alleles under all stress treatment M_1 and M_2 were same markers significantly associated under [HD] and [H] treatments while M_3 was associated with GY under [D] treatment.
Fig 7.
Phenotypic value of grain yield for genotypes carrying favorable (Major) allele in different stress treatments.
Major: favorable allele Minor: Unfavorable allele, H: Heat, D, Drought and HD: Combined heat and drought stress.
Fig 8.
Shared and unique marker trait associations among different stress treatments.
Number represent number of associations common between two or more than two treatments.
Table 2.
Summary of pleiotropic QTL detected in the spring wheat association mapping population exposed to independent and combined heat and drought stress.