Spoink, a LTR retrotransposon, invaded D. melanogaster populations in the 1990s.

Autor: Pianezza R; Institut für Populationsgenetik, Vetmeduni Vienna, Vienna, Austria.; Vienna Graduate School of Population Genetics, Vetmeduni Vienna, Vienna, Austria., Scarpa A; Institut für Populationsgenetik, Vetmeduni Vienna, Vienna, Austria.; Vienna Graduate School of Population Genetics, Vetmeduni Vienna, Vienna, Austria., Narayanan P; Biological Sciences, North Dakota State University, Fargo, North Dakota, United States of America., Signor S; Biological Sciences, North Dakota State University, Fargo, North Dakota, United States of America., Kofler R; Institut für Populationsgenetik, Vetmeduni Vienna, Vienna, Austria.
Jazyk: angličtina
Zdroj: PLoS genetics [PLoS Genet] 2024 Mar 26; Vol. 20 (3), pp. e1011201. Date of Electronic Publication: 2024 Mar 26 (Print Publication: 2024).
DOI: 10.1371/journal.pgen.1011201
Abstrakt: During the last few centuries D. melanogaster populations were invaded by several transposable elements, the most recent of which was thought to be the P-element between 1950 and 1980. Here we describe a novel TE, which we named Spoink, that has invaded D. melanogaster. It is a 5216nt LTR retrotransposon of the Ty3/gypsy superfamily. Relying on strains sampled at different times during the last century we show that Spoink invaded worldwide D. melanogaster populations after the P-element between 1983 and 1993. This invasion was likely triggered by a horizontal transfer from the D. willistoni group, much as the P-element. Spoink is probably silenced by the piRNA pathway in natural populations and about 1/3 of the examined strains have an insertion into a canonical piRNA cluster such as 42AB. Given the degree of genetic investigation of D. melanogaster it is perhaps surprising that Spoink was able to invade unnoticed.
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2024 Pianezza et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
Databáze: MEDLINE
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