A gene-phenotype network based on genetic variability for drought responses reveals key physiological processes in controlled and natural environments.

ABSTRACT: Identifying the connections between molecular and physiological processes underlying the diversity of drought stress responses in plants is key for basic and applied science. Drought stress response involves a large number of molecular pathways and subsequent physiological processes. Therefore, it constitutes an archetypical systems biology model. We first inferred a gene-phenotype network exploiting differences in drought responses of eight sunflower (Helianthus annuus) genotypes to two drought stress scenarios. Large transcriptomic data were obtained with the sunflower Affymetrix microarray, comprising 32423 probesets, and were associated to nine morpho-physiological traits (integrated transpired water, leaf transpiration rate, osmotic potential, relative water content, leaf mass per are

SUBMITTER: Rengel D 

PROVIDER: S-EPMC3466295 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature