Title: Extinct Gorilla Population’s Genetic Legacy Discovered in Eastern Gorillas
In a groundbreaking study led by scientists from the University of Vienna and the Institute of Evolutionary Biology, it has been revealed that genes from an extinct gorilla population have been passed down to modern-day eastern gorillas. Through the analysis of gorilla genomes using cutting-edge statistical methods and neural networks, researchers have shed light on the process of gene flow and its impact on these majestic creatures.
Gene flow, characterized by the intermingling of DNA during evolution through mating with individuals from extinct groups, has resulted in the introgression of genes from one gorilla group to another. This recent study explored the genomes of western and eastern gorillas, including their sub-species such as western lowland gorillas, cross-river gorillas, eastern lowland gorillas, and mountain gorillas.
The findings indicate that approximately 40,000 years ago, genes were exchanged between an extinct gorilla population and the common ancestor of eastern lowland gorillas and mountain gorillas. Astonishingly, up to 3% of the genome in today’s eastern gorillas is comprised of genes from this extinct population. Conversely, no trace of such DNA segments was identified in western gorillas.
The introduction of genes from their extinct ancestors has had notable functional effects on present-day eastern gorillas. One striking example is the inclusion of a bitter taste receptor gene from the ghost population, which is present in both eastern lowland gorillas and mountain gorillas. This discovery suggests that the genetic input from these extinct ancestors has influenced the preferred tastes of these gorillas.
Moreover, researchers identified a small amount of DNA from the ghost population on the X chromosome of eastern gorillas. This particular genetic material may be subjected to negative selection, indicating potential challenges that this species may face in maintaining the integrity of their genetic diversity.
This ground-breaking research not only provides valuable insights into the evolutionary history of gorillas but also highlights how gene flows from extinct populations can impact current populations. Understanding the intricacies of evolutionary genetics is crucial in comprehending the distinctions between humans and other apes, deepening our understanding of the natural world.
By unraveling the intricate genetic tapestry of these magnificent creatures, scientists have contributed to our knowledge of the history and genetic diversity of gorillas. The implications of this research extend beyond the realm of academia, offering a glimmer of hope for the preservation and conservation of these awe-inspiring animals.
