Fig. 6
Expression of significant differentially expressed genes (SDEGs) related to ethylene biosynthesis and signaling pathway in Chrysanthemum morifolium infected with the Chinese isolate of chrysanthemum virus B (CVB-CN). a Expression profiles of the SDEGs related to ethylene biosynthesis and signaling pathway are illustrated using a heatmap. All the ethylene-related SDEGs were grouped into eight gene ontology (GO) terms. b Significance analysis of the eight ethylene-related GO terms under infection with the Chinese isolate of chrysanthemum virus B (CVB-CN). The red box shows significant GO terms. c The number of upregulated genes and downregulated SDEGs assigned to GO:0009873 or GO:0009723 terms. Red indicates upregulated genes and blue indicates downregulated genes. d A schematic representation of the SDEGs implicated in the ethylene pathway established based on the Kyoto Encyclopedia of Genes and Genomes (KEGG) database and previous studies on the model plant species Arabidopsis. Pentagrams () indicate the SDEGs identified during CVB-CN infection. Heat maps represent Log2 ratios of (CVB-CN/Cont) from three biological replicates. Arrows indicate activation of the pathway, and T-bars indicate the repression. SAM, S-adenosylmethionine; SAS, SAM synthase; ACC, 1-aminocyclopropane-1 -carboxylic acid; ACS, ACC synthase; ACO, ACC oxidase; ETR1, ethylene response 1; CTR1, constitutive triple response 1; EIN2, ethylene insensitive 2; EIN3, ethylene insensitive 3; EBF1/2, EIN3 binding F-box 1/2; ERF1, ethylene response factor 1; ERFs, ethylene-responsive transcription factors