Transcriptomic responses to submergence in elongating and non-elongating leaves of rice with and without SUB1A

This study evaluated transcriptomic responses to submergence in elongating and non-elongating leaves of rice near-isogenic lines with and without SUB1A using RNA-Seq. SUB1A is an ERF transcription factor gene and the key regulator of submergence tolerance in rice, restricting underwater elongation and avoiding starvation under the stress. Submergence induces mRNA accumulation of SUB1A similarly in elongating and non-elongating leaves. This study uncovered SUB1A-dependent and independent regulation of adaptive responses to submergence in the two functionally distinct leaves at the global level. mRNAs extracted from elongating and non-elongating leaves of rice plants [M202 and M202(Sub1)] submerged for 0, 1, 3, and 6 days. Three independent biological replicates.