Content overview: “Ancient Virus in Chimpanzee DNA Silences Gene Active in Human Brains, Lund Study Finds”. A new study from Lund University in Sweden reveals that an ancient viral pandemic, which struck millions of years ago, may help explain why human and chimpanzee brains develop differently. Researchers found that a retrovirus embedded in chimpanzee DNA switches off a gene that remains active in humans. This gene is thought to play a role in brain development, and its silencing in chimps could be a key factor in the divergent evolution of our two species.
The findings shed light on how viral infections have shaped the genetic makeup of primates over evolutionary time. By comparing human and chimpanzee genomes, scientists can pinpoint such viral insertions and their effects on gene expression. This discovery underscores the lasting impact of ancient pathogens on modern biology and may offer new insights into human brain evolution. For the complete material, the listing points back to the source inside the network.