title: Polyploids exhibit higher potassium uptake and salinity tolerance in Arabidopsis.
abstract: Genome duplication (or polyploidization) has occurred throughout plant evolutionary history and is thought to have driven the adaptive radiation of plants. We found that the cytotype of the root, and not the genotype, determined the majority of heritable natural variation in leaf potassium (K) concentration in Arabidopsis thaliana. Autopolyploidy also provided resistance to salinity and may represent an adaptive outcome of the enhanced K accumulation of plants with higher ploidy.
authors.affiliation: Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen, AB24 3UU, UK.
authors.forename: Dai-Yin
authors.initials: DY
authors.lastname: Chao
authors.forename: Brian
authors.initials: B
authors.lastname: Dilkes
authors.forename: Hongbing
authors.initials: H
authors.lastname: Luo
authors.forename: Alex
authors.initials: A
authors.lastname: Douglas
authors.forename: Elena
authors.initials: E
authors.lastname: Yakubova
authors.forename: Brett
authors.initials: B
authors.lastname: Lahner
authors.forename: David E
authors.initials: DE
authors.lastname: Salt
mesh_terms: D017360:Arabidopsis / Q000235:genetics* / Q000502:physiology*; D018515:Plant Leaves / Q000737:chemistry / Q000166:cytology / Q000378:metabolism*; D018517:Plant Roots / Q000737:chemistry / Q000166:cytology / Q000378:metabolism*; D011188:Potassium / Q000032:analysis / Q000378:metabolism*; D055049:Salt Tolerance / Q000235:genetics*; D057891:Tetraploidy
chemical_list: D011188:Potassium