Figure 2

Extraction and CNV of differential genes. (a) Heat map of differential gene expression in normal and tumor tissues, heat map of prognosis related genes between normal (N, bright blue) and tumor tissues (T, red) (blue: low expression level; red: high expression level); (b) volcano map shows the regulation of differential genes in lung adenocarcinoma(LUAD) and normal tissues in The Cancer Genome Atlas (TCGA) cohort (green: down regulation; red: up regulation); (c) the forest map of genes related to prognosis was screened by univariate Cox analysis; (d) copy number variation (CNV) frequencies of prognosis related genes in the TCGA cohort. The height of the column represents the change frequency. The green dot represents the missing frequency. The red dot represents the amplification frequency. (e) Location of CNV changes in genes on 23 chromosomes.