At 1 dpi, eight of the proteins coded by DEGs were up-regulated in Pahang, and most proteins were involved in defending against pathogens such as PR1, POD, PPO and CHIT, whereas no DEG was identified in Brazilian, implying that Pahang exhibited inducible defense responses prior to Brazilian at the initial Foc TR4 infection stage. This evidence concerns the gene CHIT1 and infection.