Figure 3.

Genetic diversity in functional classes (Gene Ontology). Alignments containing genes annotated with GO terms (2,158 alignments) were grouped into higher-level classes based on the GO ontology of terms using GOSlim, and also based on nucleotide diversity ([0–0.008); [0.008–0.016); [0.016–0.024); [0.024–0.032); >= 0.032). Differences between categories were observed and are marked in the figure (Kruskal-Wallis test, P < 0.0001; a posteriori test, P < 0.05). Different letters indicate significant differences.

Ackermann et al. BMC Genomics 2012 13:736   doi:10.1186/1471-2164-13-736
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