Phenotypic and physiological responses to salt exposure in Sorghum reveal diversity among domesticated landraces.

We identified significant variation in salinity tolerance among Sorghum accessions that may be a result of the domestication history of Sorghum. When we compared our results with known phylogenetic relationships within sorghum, the most parsimonious explanation for our findings is that salinity tolerance was acquired early during domestication and subsequently lost in accessions growing in areas varying in soil salinity.