Figure 5
From: Gene duplications in prokaryotes can be associated with environmental adaptation
Within-cluster GO similarities for alternative background models. The distribution of within-cluster similarity scores for GO terms computed over all clusters from DAVID using three different background models: individual proteomes, all paralogs, and all proteomes. A higher score implies a more similar or unambiguous cluster with respect to GO terms, which is what we try to achieve to facilitate the subsequent analysis of clusters. The average for all paralogs is significantly different from the average for individual proteomes and all proteomes (p = 2.01 × 10-47 and p = 1.95 × 10-65 respectively using a two-sided t-test).