Lewis S, Salmela H, Obbard D. Duplication and Diversification of Dipteran Argonaute Genes, and the Evolutionary Divergence of Piwi and Aubergine. Genome Biol Evol. 2016;8:507-18 pubmed publisher
..This suggests that Argonautes undergo frequent evolutionary expansions that facilitate functional divergence. ..
Lewis S, Webster C, Salmela H, Obbard D. Repeated Duplication of Argonaute2 Is Associated with Strong Selection and Testis Specialization in Drosophila. Genetics. 2016;204:757-769 pubmed
Lewis S, Quarles K, Yang Y, Tanguy M, Frezal L, Smith S, et al. Pan-arthropod analysis reveals somatic piRNAs as an ancestral defence against transposable elements. Nat Ecol Evol. 2018;2:174-181 pubmed publisher