Research Article

Positive Selection and Centrality in the Yeast and Fly Protein-Protein Interaction Networks

Figure 4

Differences in mRNA abundance, expression breadth, protein abundance, protein length, and number of publications between positively selected genes (in red) and genes without signatures of positive selection (in gray) in D. melanogaster. Genes were considered to be under positive selection if they exhibited and . values represented in the figure correspond to the Mann-Whitney test.