Common genes of lineage 3 and lineage 4 with average dn/ds values (ω) ≥0.25 and results of the CodeML analysis.

aLikelihood ratio test (LRT) statistics for model M2a versus model M1a, percentage of sites under positive selection (%>1) and estimated dn/ds value are shown, if model M2a (PositiveSelection) fitted data significantly better than model M1a (NearlyNeutral) (* pbno clear ortholog assignment possible between the genes of lineage 3 and lineage 4. Gene indicates locus tag number of the analyzed gene of Bc (BARCL_XXXX) for lineage 3 or Bq (BQXXXX) for lineage 4. aa means analyzed gene length in amino acids. ω represents the average dn/ds value calculated over the entire gene length (see also Figure 2).