FAIRE-seq of the first leaf of two maize lines of contrasting cold-sensitivity.

High-throughput sequencing of genomic regions isolated using FAIRE (Formaldehyde-assisted isolation of regulatory elements) from two maize lines of contrasting cold-sensitivity, S68911 (tolerant) and B73 (sensitive) grown in cold and control conditions. Three growth stages were examined: coleoptile (VE), seedling with the tip of the second leaf visible (called here “VE/V1 stage”), first leaf fully developed (V1, ligular region present). Results suggest both efficient metabolism and active defense mechanisms as a basis of S68911 maize cold-tolerance.