Polyploids exhibit higher potassium uptake and salinity tolerance in Arabidopsis.
basic_science · Level V
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- Record sourced from PubMed, PMID 23887874.
- Also identified by DOI 10.1126/science.1240561 and PMC identifier 4018534.
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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.
Medical subject headings
- Arabidopsis
- Plant Leaves
- Plant Roots
- Potassium
- Salt Tolerance
- Tetraploidy