MAPK protein kinase plays an important role in the response of abiotic stresses.In the present study,we isolated a MAPK gene designated TaMAPK2 from wheat.TaMAPK2 ORF is 1 110 bp,which encodes 369 amino acids.Comparison of amino acid sequences indicated that TaMAPK2 shared high similarity with MAPKs from other species,such as Aegilops tauschii (99%),Oryza sativa (94%) and Setaria italica (94%).Phylogenetic analysis showed that TaMAPK2 is closely related with OsMAPK2.Real-time quantitative polymerase chain reaction (QPCR) assay revealed that TaMAPK2 expression is induced after osmotic stress,low temperature,salt stress,ethylene and H₂O₂ treatments and inhibited after ABA treatment.These results suggested that TaMAPK2 participates in the response of abiotic stresses and related signaling molecules.