New genetic research in BMC Evolutionary Biology found telltale mutations in modern-day Indian populations that are exclusively shared by Aborigines. The new study indicates that Australian Aborigines initially arrived via south Asia.
Dr Raghavendra Rao worked with a team of researchers from the Anthropological Survey of India to sequence 966 complete mitochondrial DNA genomes from Indian 'relic populations'. He said, "Mitochondrial DNA is inherited only from the mother and so allows us to accurately trace ancestry. We found certain mutations in the DNA sequences of the Indian tribes we sampled that are specific to Australian Aborigines. This shared ancestry suggests that the Aborigine population migrated to Australia via the so-called 'Southern Route'."
The 'Southern Route' dispersal of modern humans suggests movement of a group of hunter-gatherers from the Horn of Africa, across the mouth of the Red Sea into Arabia and southern Asia at least 50 thousand years ago. Subsequently, the modern human populations expanded rapidly along the coastlines of southern Asia, southeastern Asia and Indonesia to arrive in Australia at least 45 thousand years ago. The genetic evidence of this dispersal from the work of Rao and his colleagues is supported by archeological evidence of human occupation in the Lake Mungo area of Australia dated to approximately the same time period.
Discussing the implications of the research, Rao said, "Human evolution is usually understood in terms of millions of years. This direct DNA evidence indicates that the emergence of 'anatomically modern' humans in Africa and the spread of these humans to other parts of the world happened only fifty thousand or so years ago. In this respect, populations in the Indian subcontinent harbor DNA footprints of the earliest expansion out of Africa. Understanding human evolution helps us to understand the biological and cultural expressions of these people, with far reaching implications for human welfare."
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- Lettuces Now, What Next - Could Astronauts Get All Their Oxygen And Food From Algae Or Plants?
- Spiky Filaments For Egg Fusion: Sperm Wield Tiny Harpoons
- Innate GMO Potato Deregulated By USDA
- Fetal Attraction: How Baby Cells Impact Maternal Health During Pregnancy
- A Historical Moment For Diabetes
- Science And Technology Adviser To Condoleezza Rice: GMOs "Critical" To Feeding The World
- School Lunch: How To Teach Kids To Be Casual Criminals
- "This originated as my answer to the Quora question: Why doesn't NASA have plants inside space..."
- "I mean both type of diabetes, because:Klahr and Bricker: Energetics of Anaerobic Sodium Transport..."
- "Monsanto can buy nearly anyone it seems. SHAME!..."
- "Sorry, I don't speak Russian. I tried Google translate, and see that your comment is to do with..."
- " Инерциоид либрация 4 Предлагаю вашему вниманию, инерциоид..."
- Where bread began: Ancient tools used to reconstruct (and eat) prehistoric cuisine
- Study links air pollution to children's low GPAs
- Fetal attraction: The alien within influences maternal health during pregnancy
- Can eagles be saved from wind turbines?
- Is failure to reproduce psychology papers a sign they are invalid?