Chiropterans Are a Hotspot for Horizontal Transfer of DNA Transposons in Mammalia.

Paulat NS, Storer JM, Moreno-Santillán DD, Osmanski AB, Sullivan KAM, Grimshaw JR, Korstian J, Halsey M, Garcia CJ, Crookshanks C, Roberts J, Smit AFA, Hubley R, Rosen J, Teeling EC, Vernes SC, Myers E, Pippel M, Brown T, Hiller M, Zoonomia Consortium , Rojas D, Dávalos LM, Lindblad-Toh K, Karlsson EK, Ray DA

Mol. Biol. Evol. 40 (5) - [2023-05-02; online 2023-04-18]

Horizontal transfer of transposable elements (TEs) is an important mechanism contributing to genetic diversity and innovation. Bats (order Chiroptera) have repeatedly been shown to experience horizontal transfer of TEs at what appears to be a high rate compared with other mammals. We investigated the occurrence of horizontally transferred (HT) DNA transposons involving bats. We found over 200 putative HT elements within bats; 16 transposons were shared across distantly related mammalian clades, and 2 other elements were shared with a fish and two lizard species. Our results indicate that bats are a hotspot for horizontal transfer of DNA transposons. These events broadly coincide with the diversification of several bat clades, supporting the hypothesis that DNA transposon invasions have contributed to genetic diversification of bats.

PubMed 37071810

DOI 10.1093/molbev/msad092

Crossref 10.1093/molbev/msad092

pmc: PMC10162687
pii: 7128099


Publications 9.5.1