Figure 3 | Scientific Reports

Figure 3

From: Differential degeneration of the ACTAGT sequence among Salmonella: a reflection of distinct nucleotide amelioration patterns during bacterial divergence

Figure 3

Prediction of secondary structures for intergenic sequences with different levels of evolutionary conservation. (A) The pyrH-frr intergenic sequence conserved across different Salmonella lineages (subgroups I, IIIa and V); (B) The eda-edd intergenic sequence conserved in Salmonella subgroup I but not in Salmonella subgroup IIIa or V. Both formed stable stem-loop structures but one-base mutation would produce structural modifications leading to one of the modeled degenerated forms in them with the stem-loop structure being disrupted or a thermally unstable stem-loop structure (see details in Supplementary Figures 1 and 2).

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