Figure 5.

Bar chart showing genes undergoing positive selection or purifying/neutral selection across Sulcia and Nasuia genomes from Hawaiian leafhoppers (Nesophrosyne)

Genes are binned into their Clusters of Orthologous Groups (COGs) functional categories (Tatusov et al., 2000). Bars are color coded according to their genome (i.e., Sulcia or Nasuia) and selection (i.e., Positive or Neutral/Purifying). We used two nested models, M1a-M2a and M7-M8, to determine overall support for selection among genes (See section methods for further explanation; Anisimova et al., 2001). The likelihood scores were compared within paired models (chi-squared test; p ≤ 0.05) to indicate significant positive selection for genes.