Skip to main content
Premium Trial:

Request an Annual Quote

Perhaps It's a Display of Gratitude for the Hospitality

Over at Small Things Considered, Moselio Schaechter and Merry Youle have a post considering Wolbachia endosymbionts and the jumping genes they deliver to host genomes. Referring to a study published last year, they write, "In the tropical fruit fly, Drosophila ananassae, virtually the entire Wolbachia genome had been transferred." But the host's genome defense is generally good, so transferred genes tend not to be transcribed or used -- which has the bloggers wondering why this happens at all. "Are the Wolbachia squirreling away their genes for safekeeping, or is there some other reason for their massive transfer to the host's nucleus? A mystery," they add.


The Scan

Tens of Millions Saved

The Associated Press writes that vaccines against COVID-19 saved an estimated 20 million lives in their first year.

Supersized Bacterium

NPR reports that researchers have found and characterized a bacterium that is visible to the naked eye.

Also Subvariants

Moderna says its bivalent SARS-CoV-2 vaccine leads to a strong immune response against Omicron subvariants, the Wall Street Journal reports.

Science Papers Present Gene-Edited Mouse Models of Liver Cancer, Hürthle Cell Carcinoma Analysis

In Science this week: a collection of mouse models of primary liver cancer, and more.