Fig. 2
From: The MC4R SNPs, their haplotypes and gene-environment interactions on the risk of obesity
Different types of interaction dendrogram for SNP-environment (a) and haplotype-environment (b) interactions on the risk of obesity. Blue color, strong redundancy interaction; green color, weak redundancy interaction; orange color, synergy. The elements with strong interaction are close to each other at the leaves of tree, and the elements with weak interaction are far away from each other