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© Research
Publication : Nature reviews. Microbiology

Polintons: a hotbed of eukaryotic virus, transposon and plasmid evolution

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Nature reviews. Microbiology - 01 Feb 2015

Krupovic M, Koonin EV

Link to Pubmed [PMID] – 25534808

Nat. Rev. Microbiol. 2015 Feb;13(2):105-15

Polintons (also known as Mavericks) are large DNA transposons that are widespread in the genomes of eukaryotes. We have recently shown that Polintons encode virus capsid proteins, which suggests that these transposons might form virions, at least under some conditions. In this Opinion article, we delineate the evolutionary relationships among bacterial tectiviruses, Polintons, adenoviruses, virophages, large and giant DNA viruses of eukaryotes of the proposed order ‘Megavirales’, and linear mitochondrial and cytoplasmic plasmids. We hypothesize that Polintons were the first group of eukaryotic double-stranded DNA viruses to evolve from bacteriophages and that they gave rise to most large DNA viruses of eukaryotes and various other selfish genetic elements.

http://www.ncbi.nlm.nih.gov/pubmed/25534808