Genes and pathways correlated with heat stress responses and heat tolerance in maize kernels

Global warming leads to frequent extreme weather, especially the heat events, which threating safety of maize production. Here we selected a pair inbred lines, PF5411-1 and LH150, with significant differences in tolerance at kernel development stage. The two lines were treated stress Compared control groups, transcriptomic analysis identified 770 common up- down-regulated genes between LH150 under conditions, 41 putative TFs predicted. Based on interaction term two-factorial design, also 6,744 differentially regulated PF5411-1, 111 up-regulated 141 overlapped genes, respectively. Combined proteins metabolites data, several key pathways including seven highly correlated kernels. first is Kyoto Encyclopedia Genes Genomes (KEGG) pathway ko04141: protein processing endoplasmic reticulum, four small shock (sHSP) enriched this pathway, participating process ER-associated degradation (ERAD). second one myricetin biosynthesis protein, flavonoid 3’,5’-hydroxylase [EC:1.14.14.81], catalyzed synthesis myricetin. third raffinose metabolic gene encoded synthase controlled raffinose, high level enhances And last ethylene signaling pathway. Taken together, our work identifies many responded kernels, finds out