Natural variation in stomata size contributes to the local adaptation of water-use efficiency in Arabidopsis thaliana.

ABSTRACT: Stomata control gas exchanges between the plant and the atmosphere. How natural variation in stomata size and density contributes to resolve trade-offs between carbon uptake and water loss in response to local climatic variation is not yet understood. We developed an automated confocal microscopy approach to characterize natural genetic variation in stomatal patterning in 330 fully sequenced Arabidopsis thaliana accessions collected throughout the European range of the species. We compared this to variation in water-use efficiency, measured as carbon isotope discrimination (δ¹³ C). We detect substantial genetic variation for stomata size and density segregating within Arabidopsis thaliana. A positive correlation between stomata size and δ¹³ C further suggests that thi

SUBMITTER: Dittberner H 

PROVIDER: S-EPMC7611081 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature