Document of bibliographic reference 295010

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Horizontal transfer of retrotransposons between bivalves and other aquatic species of multiple phyla

Abstract

The LTR retrotransposon Steamer is a selfish endogenous element in the soft-shell clam genome that was first detected because of its dramatic amplification in bivalve transmissible neoplasia afflicting the species. We amplified and sequenced related retrotransposons from the genomic DNA of many other bivalve species, finding evidence of horizontal transfer of retrotransposons from the genome of one species to another. First, the phylogenetic tree of the Steamer-like elements from 19 bivalve species is markedly discordant with host phylogeny, suggesting frequent cross-species transfer throughout bivalve evolution. Second, sequences nearly identical to Steamer were identified in the genomes of Atlantic razor clams and Baltic clams, indicating recent transfer. Finally, a search of the National Center for Biotechnology Information sequence database revealed that Steamer-like elements are present in the genomes of completely unrelated organisms, including zebrafish, sea urchin, acorn worms, and coral. Phylogenetic incongruity, a patchy distribution, and a higher similarity than would be expected by vertical inheritance all provide evidence for multiple long-distance cross-phyla horizontal transfer events. These data suggest that over both short- and long-term evolutionary timescales, Steamer-like retrotransposons, much like retroviruses, can move between organisms and integrate new copies into new host genomes.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000431119600013

Bibliographic citation

Metzger, M.J.; Paynter, A.N.; Siddall, M.E.; Goff, S.P. (2018). Horizontal transfer of retrotransposons between bivalves and other aquatic species of multiple phyla. Proc. Natl. Acad. Sci. U.S.A. 115(18): E4227-E4235. https://dx.doi.org/10.1073/pnas.1717227115

Is peer reviewed

true