Expression analysis of TaCAT genes in different tissues of different developmental stages and stress treatments. (a) hierarchical clustering of expression profiles of wheat CAT genes in different tissues at seedling, vegetative, reproductive phase, and 10, 20, 30 dpa. S, seedling phase; V, vegetative phase; R, reproductive phase; dpa, day post-anthesis; (b) hierarchical clustering of expression profiles of TaCAT genes in different tissues at a milk grain stage; (c) hierarchical clustering of expression profiles of TaCAT genes under different abiotic stress treatments. D + H, drought and heat stress; P, phosphorus stress; (d) hierarchical clustering of expression profiles of TaCAT genes under different biotic stress treatments. CR, crown rot; F, fusarium hormones; PM, powdery mildew; SR, stripe rust; S, septoria.