The mean expression level of PDGFRA mRNA in the CC group was 27.101 (range: 0.000-97.353), while the mean value was 5.068 (range: 0.000-59.542) in the CT+TT group (P < 0.001; Figure 3B, C), demonstrating that the PDGFRA mRNA expression level was significantly reduced in melanoma tissues with the rs2228230:T genotype. Here, PDGFRA is linked to melanoma.