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The Plant Cell
To begin to determine which genes are essential for salt tolerance in higher plants, we identified four salt-hypersensitive mutants of Arabidopsis by using a root-bending assay on NaCI-containing agar plates. These mutants (sosl-7, sosl-2, sosl-3, and sosl-4) are allelic to each other and were caused by single recessive nuclear mutations. The SOSl gene was mapped to chromosome 2 at 29.5 f 6.1 centimorgans. The mutants showed no phenotypic changes except that their growth was >20 times moredoi:10.1105/tpc.8.4.617 pmid:12239394 fatcat:z43cspndijgbfhu4oc7jhj5rza