Figure 2

Functional enrichment of variant genes after KEGG/COG/GO annotation. Picture A: Analysis of functional enrichment. The red and green bars represent LCT-KP214 and LCT-KP289, respectively. The genes containing SNPs or InDels, those located in repeat regions or those unique to each strain were analyzed separately. Each classification square contained three paired bars, indicating the number of enriched functional items, the number of annotated variant genes, and the number of all annotated genes in the strain from left to right. Pictures B, C and D indicate the detailed enrichment results of variant genes after COG, KEGG and GO annotation. In pictures B, C, and D, the annotation axis is classified by functional items. The hollow columns represent the number of all annotated genes in the strain. The solid columns represent the number of annotated variant genes. The arrows in pictures B and C and the asterisk in picture D indicate significantly enriched functional items.