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Natural Variation in Arabidopsis thaliana as a Tool for Highlighting Differential Drought Responses
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Natural Variation in Arabidopsis thaliana as a Tool for Highlighting Differential Drought Responses
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Journal Article
Natural Variation in Arabidopsis thaliana as a Tool for Highlighting Differential Drought Responses
2008
Overview
To test whether natural variation in Arabidopsis could be used to dissect out the genetic basis of responses to drought stress, we characterised a number of accessions. Most of the accessions belong to a core collection that was shown to maximise the genetic diversity captured for a given number of individual accessions in Arabidopsis thaliana. We measured total leaf area (TLA), Electrolyte Leakage (EL), Relative Water Content (RWC), and Cut Rosette Water Loss (CRWL) in control and mild water deficit conditions. A Principal Component Analysis revealed which traits explain most of the variation and showed that some accessions behave differently compared to the others in drought conditions, these included Ita-0, Cvi-0 and Shahdara. This study relied on genetic variation found naturally within the species, in which populations are assumed to be adapted to their environment. Overall, Arabidopsis thaliana showed interesting phenotypic variations in response to mild water deficit that can be exploited to identify genes and alleles important for this complex trait.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
/ Alleles
/ Biotechnology/Plant Biotechnology
/ Cell Biology/Plant Cell Biology
/ Cell Biology/Plant Genetics and Gene Expression
/ Cloning
/ Drought
/ Genetics and Genomics/Comparative Genomics
/ Genomics
/ Plant Biology/Agricultural Biotechnology
/ Plant Biology/Plant Biochemistry and Physiology
/ Plant Biology/Plant Cell Biology
/ Plant Biology/Plant Genetics and Gene Expression
/ Plant Biology/Plant Genomes and Evolution
/ Plant Biology/Plant Growth and Development
/ Plant Biology/Plant-Environment Interactions
/ Principal components analysis
/ Rosette
/ Trends
