Horizontal gene transfer in metazoans has been documented in only a few species and is
usually associated with endosymbiosis or parasitism. By contrast, in bdelloid rotifers we found …

The evolutionary origin of telomerases, enzymes that maintain the ends of linear chromosomes
in most eukaryotes, is a subject of debate. Penelope-like elements (PLEs) are a recently …

In recent years, much attention has been paid to comparative genomic studies of transposable
elements (TEs) and the ensuing problems of their identification, classification, and …

We report that two structurally similar transposable elements containing reverse transcriptase
(RT), Penelope in Drosophila virilis and Athena in bdelloid rotifers, have proliferated as …

DNA modifications are used to regulate gene expression and defend against invading
genetic elements. In eukaryotes, modifications predominantly involve C5-methylcytosine (5mC) …

… Irina R Arkhipova Irina R Arkhipova … CDS, % genome covered by coding sequences (including
introns); R, regulatory regions; TE, transposable element sequences; S, high-copy …

Reverse transcriptases (RTs) polymerize DNA on RNA templates. They fall into several
structurally related but distinct classes and form an assemblage of RT-like enzymes that, in …

Transposable elements inhabiting eukaryotic genomes are generally regarded either as
selfish DNA, which is selectively neutral to the host organism, or as parasitic DNA, deleterious …

Transposable elements (TEs) are ubiquitous in both prokaryotes and eukaryotes, and the
dynamic character of their interaction with host genomes brings about numerous evolutionary …

Sexual reproduction is almost ubiquitous among extant eukaryotes. As most asexual lineages
are short-lived, abandoning sex is commonly regarded as an evolutionary dead end. Still, …