Population Genomics of Premature Termination Codons in Cavefish With Substantial Trait Loss.

Additionally, chromosome 12 is representative of an overall trend in our data, which is that of PTCs that are present in caves at a high frequency (allele frequency ≥ 0.8) approximately half are putative de novo mutations (not present in any surface populations) and half are likely sourced from standing genetic variation (present in at least one surface populations) ( supplementary table S7 , Supplementary material online).

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