Dynamics and Impacts of Transposable Element Proliferation in the Drosophila nasuta Species Group Radiation.

ABSTRACT: Transposable element (TE) mobilization is a constant threat to genome integrity. Eukaryotic organisms have evolved robust defensive mechanisms to suppress their activity, yet TEs can escape suppression and proliferate, creating strong selective pressure for host defense to adapt. This genomic conflict fuels a never-ending arms race that drives the rapid evolution of TEs and recurrent positive selection of genes involved in host defense; the latter has been shown to contribute to postzygotic hybrid incompatibility. However, how TE proliferation impacts genome and regulatory divergence remains poorly understood. Here, we report the highly complete and contiguous (N50 = 33.8-38.0 Mb) genome assemblies of seven closely related Drosophila species that belong to the nasuta species group-a poorly

SUBMITTER: Wei KH 

PROVIDER: S-EPMC9075770 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature