Full-length LINE-1s with functional ORFs are favoured by host-level selection in human genomes
Dohna, H.; Zhou, B.; Zhu, X.; Urban, A. E.
Show abstract
The effects of transposable elements, such as LINE-1, on host fitness are still poorly understood. Our analysis of the site frequency spectrum of LINE-1s and SNPs within LINE1s in human genomes shows that selection coefficients are higher for full-length than for fragment LINE-1s and on full-length LINE-1s, SNPs are significantly depleted on ORFs and non-synonymous sites within ORFs. These results suggest that host-level selection maintains transposition competent LINE-1s.
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