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illustration of neurons in blue and microglia in orange
Ancient Viral DNA Helps Mouse Brains Fight Infection
Mammals that give birth to live young may have evolved to make use of the remnants of viruses in their genomes to ward off pathogens, a study suggests. 
Ancient Viral DNA Helps Mouse Brains Fight Infection
Ancient Viral DNA Helps Mouse Brains Fight Infection

Mammals that give birth to live young may have evolved to make use of the remnants of viruses in their genomes to ward off pathogens, a study suggests. 

Mammals that give birth to live young may have evolved to make use of the remnants of viruses in their genomes to ward off pathogens, a study suggests. 

genome evolution
a Hawaiian bobtail squid (Euprymna scolopes) resting on a reflective surface
Reshuffled Genomes May Explain Cephalopods’ Smarts
Sophie Fessl, PhD | May 13, 2022 | 4 min read
In two related studies, researchers describe huge chromosomal rearrangements and about 500 novel gene clusters in the octopus, squid, and cuttlefish genomes, which they say could help explain how they evolved their extraordinary brains.
a microscope image of a rotifer
Bacterial Enzyme Keeps Rotifers’ Transposable Elements in Check
Christie Wilcox, PhD | Mar 3, 2022 | 5 min read
Jumping genes in bdelloid rotifers are tamped down by DNA methylation performed by an enzyme pilfered from bacteria roughly 60 million years ago, a study finds.
5 images related to stories highlighted in the article, including DNA strand, insect, and dog
Our Favorite Genetics Stories of 2021
Christie Wilcox, PhD | Dec 23, 2021 | 4 min read
Studies The Scientist covered this year illustrate the expanding importance of genetic and genomic research in all aspects of life science, from ecology to medicine.
the molecular structure of interferon-alpha
Lots of Rapid Evolution in Interferon-Stimulated Genes: Study
Christie Wilcox, PhD | Jul 1, 2021 | 2 min read
A comparison of interferon-related genes across 20 primate genomes reveals differences in the speed at which they evolve and new targets for antiviral discovery efforts.
green algae, phytoplankton, giant virus, genetics & genomics, endogenization, evolution, diversity, eukaryote
Giant Viruses Can Integrate into the Genomes of Their Hosts
Amanda Heidt | Nov 19, 2020 | 4 min read
Rather than introducing small chunks of DNA as other viruses do, some giant viruses can contribute more than 1 million base pairs to a host’s genome, broadening the ways in which viruses may shape eukaryote evolution.
Image of the Day: Minions of the Cicada 
The Scientist Staff and The Scientist Staff | Jan 9, 2018 | 1 min read
Scientists study the unusual genome evolution of the bacteria that live within a genus of cicadas. 
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