Treatment of OsFes1 by different stress conditions. A, A schematic illustration of domain organization of OsFes1C. It contains a Fes1 domain. B, Phylogenetic tree of OsFes1C with homologs in other species. HPBP1 is the homolog of Fes1 in human. The neighbor-joining method was used for constructing the phylogenetic tree. The bootstrap probability values were shown on the nodes of the phylogenic tree. C, Expression of OsFes1A under different stress conditions. OsFes1A is significantly increased under heat stress. D, Expression of OsFes1B under different stress conditions. OsFes1B is significantly increased under heat stress. E, Expression of OsFes1C under different stress conditions. OsFes1C is significantly increased under ER and salt stresses. The expression of the OsFes1 isoforms in (C–E) has been normalized to ACTIN, then the mRNA level under different stress conditions was relative to the control as 1.0. All data are averages of three independent experiments, and error bars represent sem. *P < 0.05, **P < 0.01, and ***P < 0.001 (Student’s t test).