Scientists present evidence for a billion-years arms race between viruses and their hosts

Researchers have proposed a new evolutionary model for the origin of a kingdom of viruses called Bamfordvirae, suggesting a billion-years evolutionary arms race between two groups within this kingdom and their hosts.

Phys.org

They are huge (for a virus) and there are probably MANY more of them out there.

Great new review about GIANT  viruses   by Frederik Schulz, Chantal Abergel, Tanja Woyke

https://www.nature.com/articles/s41579-022-00754-5

#JGI #BerkeleyLab #virus #giantvirus #NCLDV #NatureReviewsMicrobiology

Giant virus biology and diversity in the era of genome-resolved metagenomics - Nature Reviews Microbiology

The discovery of giant viruses, with virions as large as some bacteria and eukaryotes, megabase-range genomes, and a variety of traits typically found only in cellular organisms, was one of the most remarkable breakthroughs in biology. In this Review, Schulz, Abergel and Woyke explore insights into the biology, diversity, biogeography and ecology of giant viruses provided by culture and genomic technologies.

Nature