The recent invasion of natural Drosophila simulans populations by the P-element

摘要: The P-element is one of the best understood eukaryotic transposable elements. It invaded Drosophila melanogaster populations within a few decades but was thought to be absent from close relatives, including simulans. Five after spread in D. melanogaster, we provide evidence that has also P-elements simulans appear have been acquired recently probably via single horizontal transfer event. Expression data indicate processed germ line simulans, and genomic show an enrichment insertions putative origins replication, similar seen melanogaster. This ongoing natural provides unique opportunity understand dynamics element associated piwi-interacting RNAs defense mechanisms.