Natural variation in growth and leaf ion homeostasis in response to salinity stress in Panicum hallii.

ABSTRACT: Soil salinity can negatively impact plants growth, development and fitness. Natural plant populations restricted to coastal environments may evolve in response to saline habitats and therefore provide insights into the process of salinity adaptation. We investigated the growth and physiological responses of coastal and inland populations of Panicum hallii to experimental salinity treatments. Coastal genotypes demonstrated less growth reduction and superior ion homeostasis compared to the inland genotypes in response to saline conditions, supporting a hypothesis of local adaptation. We identified several QTL associated with the plasticity of belowground biomass, leaf sodium and potassium content, and their ratio which underscores the genetic variation present in this species for sali

SUBMITTER: Haque T 

PROVIDER: S-EPMC9586453 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature