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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.

SUBMITTER: Chao DY 

PROVIDER: S-EPMC4018534 | biostudies-literature | 2013 Aug

REPOSITORIES: biostudies-literature

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Polyploids exhibit higher potassium uptake and salinity tolerance in Arabidopsis.

Chao Dai-Yin DY   Dilkes Brian B   Luo Hongbing H   Douglas Alex A   Yakubova Elena E   Lahner Brett B   Salt David E DE  

Science (New York, N.Y.) 20130725 6146


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. ...[more]

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