ICTV Virus Taxonomy Profile: Belpaoviridae 2021

The family Belpaoviridae comprises metazoan-infecting reverse-transcribing viruses with long terminal repeats, commonly known as Bel/Pao LTR retrotransposons. These viruses share evolutionary history and genes involved in genome replication and virion formation with reverse-transcribing viruses of the families Metaviridae, Pseudoviridae, Retroviridae and Caulimoviridae. These five families form the order Ortervirales. This is a summary of the ICTV Report on the family Belpaoviridae, which is available at ictv.global/report/belpaoviridae.

Population-genetic structure of the eastern sand lizard Lacerta agilis exigua (Reptiilia, Lacertidae), assessed by ISSR-PCR and IRAP-PCR markers

Впервые описано присутствие участков гомологии в геномах восточной прыткой ящерицы к длинным концевым повторам эндогенных ретровирусов Sabrina и SIRE-1 и выполнен сравнительный анализ спектров продуктов амплификации фрагментов геномной ДНК ящерицы Lacerta agilis exigua, полученных с использованием двух типов ДНК маркеров - фрагментов геномной ДНК, ящериц, фланкированных инвертированными повторами микросателлитных локусов и длинными концевыми повторами эндогенных ретровирусов The presence of homology regions in the long terminal repeats of the endogenous retroviruses Sabrina and SIRE - 1 in the genomes of the eastern sand lizard was described for the first time. A comparative analysis of the spectra of amplification products of genomic DNA fragments of the mentioned lizard species obtained using two types of DNA markers - fragments of genomic DNA, flanked by inverted repeats of microsatellite loci and long terminal repeats of endogenous retroviruses, was performed.

ICTV Virus Taxonomy Profile: Pseudoviridae

Pseudoviridae is a family of reverse-transcribing viruses with long terminal repeats (LTRs) belonging to the order Ortervirales. Pseudoviruses are commonly found integrated in the genomes of diverse plants, fungi and animals and are broadly known as Ty1/Copia LTR retrotransposons. Inside the cell, they form icosahedral virus particles, but unlike most other viruses, do not have an extracellular phase. This is a summary of the ICTV Report on the family Pseudoviridae, which is available at ictv.global/report/pseudoviridae.

ICTV Virus Taxonomy Profile: Metaviridae

Metaviridae is a family of retrotransposons and reverse-transcribing viruses with long terminal repeats belonging to the order Ortervirales. Members of the genera Errantivirus and Metavirus include, respectively, Saccharomyces cerevisiae Ty3 virus and its Gypsy-like relatives in drosophilids. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Metaviridae, which is available at ictv.global/report/metaviridae.

Genome Sequences of Four Potentially Therapeutic Bacteriophages Infecting Shiga Toxin-Producing Escherichia coli

ABSTRACT Four phages infecting Shiga toxin-producing Escherichia coli (STEC) strains of different serotypes were isolated from wastewater samples. Their virion DNAs range from 51 to 170 kbp, are circularly permuted or have defined terminal repeats, and can encode 82 to 279 proteins. Despite their high similarity to other phages, only about 30% of their genes have a predicted function.