Новости за 06.11.2022

Researchers have compiled the first genome sequences of desert pupfish from the American Southwest, including the unique Devils Hole pupfish. The genomes of the 8 Devils Hole pupfish sequenced contained an amazing number of identical stretches of DNA, amounting to 58% of the genome -- among the most inbred of any known vertebrate. Paradoxically, of 15 gene deletions, five involved adaptation to hypoxia, or low oxygen levels, which are characteristic of the pupfish's habitat.

Astronomers have identified the oldest star in our galaxy that is accreting debris from orbiting planetesimals, making it one of the oldest rocky and icy planetary systems discovered in the Milky Way.

A new study finds that the most commonly prescribed class of anti-depressants does not help reduce the severity of illness or even death for people who get COVID, as once thought.