[NEWS]
Studying DNA fragments left by ancient viruses in their host's genome has shown even non-autonomous viruses could prosper by helping each other. By analysing ancient viral footprints in the rice genome, Hokkaido University researchers have discovered different virus species infecting the same plant helped each other by exchanging DNA. Many viruses including “pararetroviruses (PRVs)” have the ability to insert their DNA into their host's genome. I…