Dissection and modelling of abiotic stress tolerance in plants.
Plants have acquired a variety of whole-plant protection mechanisms in response to abiotic stresses, often at the expenses of performance. Hence, a given trait can have positive, negative or no effect depending on the stress scenario. A new approach has emerged that dissects yield and integrative traits that influence stress tolerance into heritable traits (e.g. sensitivity parameters or architectural traits) by using phenotyping platforms with model-assisted methods. The genetic and physiological mechanisms accounting for the variability of these traits and their effects on yield are considered in a second step. Effects of traits on yield are analysed via a combination of modelling and field experiments, which allows identification of the stress scenarios where a given allele has favourable effects.
Tardieu
François
F
INRA, UMR 759 LEPSE, 2 Place Viala F-34000, Montpellier, France. tardieu@supagro.inra.fr
Tuberosa
Roberto
R
D000222:Adaptation, Physiological / Q000235:genetics*; D018556:Crops, Agricultural / Q000235:genetics; D008957:Models, Genetic; D010944:Plants / Q000235:genetics*; D019655:Quantitative Trait, Heritable; D013312:Stress, Physiological / Q000235:genetics*