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. 2017 Jul 19;2(4):e00158-17. doi: 10.1128/mSphere.00158-17

FIG 3 .

FIG 3 

The fraction of isolates with polymorphism present at specific sites within 100 CF isolates (black) and 77 environmental isolates (gray). Shown are the proportions of isolates with variation at the specific base positions found to be mutated in our laboratory selection experiment. We surveyed for variation at the specific base position but have shown codon changes along the x axis for ease of interpretation and comparison with other figures presented.