Scientists Shocked As They Find Aboriginal Australians Carry DNA Of An Unknown “Human” Species. A group of humans migrating out of Africa some 40,000 to 70,000 years ago mingled with an as-yet unknown branch of humanity, researchers say.
Modern humans originated about 150,000 to 200,000 years ago in Africa. However, scientists have long debated when and how the modern human lineage spread out of Africa to nearly every corner of the globe. Nearly everyone outside Africa descended from an exodus that occurred between 40,000 and 70,000 years ago, but recent archaeological findings and climate models suggest that migrations of modern humans from Africa began at least 100,000 years ago. One way to find out whether, in the past, modern humans dispersed from Africa in one wave or many — and to see if they intermingled with any other human lineages along the way — is to examine the genomes of present-day modern humans.
Among the understudied groups researchers looked at are African populations, which have considerable genetic, linguistic and cultural diversity. Listening to the Genome: Music or Noise? One of the great triumphs of twentieth-century biology was the discovery of how genes make proteins.
Genes are encoded in DNA. To turn the sequence of a gene into a protein, a number of molecules gather around it. Reading its sequence, they produce a single-stranded version of it made of RNA, called a transcript. The transcript gets shipped to a cluster of other molecules, the ribosome, which picks out building blocks to construct a protein that corresponds to the gene. The protein floats off to do its job, whether that job is to catch light, digest food, or help generate a thought. “Ethnicity” Estimates from DNA testing. Last week I received my DNA results from ancestry.com.
This means I’ve now tested with the “Big 3” DNA testing companies, namely Ancestry, FamilyTreeDNA and 23andMe. For fun I thought it would be worth comparing these results. I had been thinking about doing this for a while, and as luck would have it another blogger, Debbie Kennett, recently worked through her British ancestors and also ploughed through the information provided by the testing companies. It’s worth reading her summary in conjunction with this post. Understanding genetic ancestry testing. Cruwys news: Comparing admixture results from AncestryDNA, 23andMe and Family Tree DNA. I have now taken an autosomal DNA cousin-matching test at all three testing companies – 23andMe, AncestryDNA and Family Tree DNA.
The Best and Worst of 2015 – Genetic Genealogy Year in Review. For the past three years I’ve written a year-in-review article.
You can see just how much the landscape has changed in the 2012, 2013 and 2014 versions. This year, I’ve added a few specific “award” categories for people or firms that I feel need to be specially recognized as outstanding in one direction or the other. Genealogy and Ethnicity DNA Testing – 3 Legitimate Companies. As with any industry that has become popular, especially quickly, there are the front runner companies, and then there is an entire cadre of what I am going to call “third tier” companies that spring up and are trying to play off of the success of the front runners and the naivety of the consuming public.
I’m going to avoid the use of the words snake oil here, because some of them aren’t quite that bad, but others clearly are. 23andMe, Ancestry and Selling Your DNA Information. Are you aware that when you purchase a DNA kit for genealogy testing through either 23andMe or Ancestry that you are literally giving these companies carte blanche to your DNA, the rights to your DNA information, including for medical utilization meaning sales to Big Pharm, and there is absolutely no opt-out, meaning they can in essence do anything they want with your anonymized data?
Both companies also have a higher research participation level that you can choose to participate in, or opt out of, that grants them permission to sell or otherwise utilize your non-anonymized data, meaning your identity is attached to that information. However, opting out of his higher level DOES NOT stop the company from utilizing, sharing or selling your anonymized DNA and data. Anonymized data means your identity and what they consider identifying information has been removed. SSGG (Svenska Sällskapet för Genetisk Genealogi) - Nätverket för DNA-släktforskning. Human family tree drawn by gene sequencing effort. Stanford Report, February 27, 2008 By Amy Adams Pam Lowney Researchers have traced genetic diversity in populations around the world in a gene sequencing study that suggests waves of human migration originated from the first humans in sub-Saharan Africa.
The waves of migration are shown above by color. Richard Myers Stanford researchers have created the highest resolution map of human genetic diversity to date, providing insight into how groups of people throughout the world are related and adding weight to previous theories that traced human origins to Africa. The researchers surveyed 650,000 genetic locations in people from 51 populations to derive the map, providing data that will become a valuable tool in the search for disease-related genes.
The data confirm earlier work that the vast majority of genetic variation occurs within populations rather than between populations, suggesting that, genetically speaking, race is only skin deep. Some Pacific Islanders Have DNA Not Linked To Any Known Human Ancestor. Researchers have now uncovered the DNA of a previously unknown group of hominids.
Chris Hyde/Getty ImagesChildren from the village of Hanuabada play cricket in the streets on February 24, 2012 in Port Moresby, Papua New Guinea. Most everyone knows that the islands of the South Pacific are some of the most remote and unique places on Earth, but a new study reveals just how unique they really are. Humans are still evolving but in ways that might surprise you. It’s often said that through our innovations in science, agriculture and medicine humans have become masters of our biological destiny.
That we’ve seized control of our evolution, eliminating most of the causes of death and suffering experienced by our ancient and not too distant ancestors. We’ve wiped out hunger and famine and eliminated food shortages in most parts of the world. Today, we have access to a wide variety of high quality foods. Items once only available to us seasonally can now be eaten all year round. Humans have tamed many deadly diseases with antibiotics and even wiped some out completely through vaccination.
As we age and our body parts break or wear out we’re increasingly able to repair or even replace them with artificial ones. We can control our fertility and decide whether to have children or not, even while maintaining active sex lives. We’ve dramatically extended our lifespan: more people are living much longer than ever before. DNA Study Finds Aboriginal Australians World’s Oldest Civilization - History in the Headlines. According to a new study published this week in the journal Nature, researchers conducting the first-ever genomic study of indigenous Australians have found evidence of a single “out of Africa” migration for modern humans and confirmed a long-standing claim that Australia’s Aboriginal civilization is the oldest on the planet, dating back some 50,000 years.
The newly published paper is the first extensive DNA study of Aboriginal Australians, according to the University of Cambridge. Working in close collaboration with indigenous Australian elders and leaders, an international team of researchers obtained permission to extract DNA from the saliva of 83 Aboriginal Australians and 25 Papuans from New Guinea and sequence their complete genetic information. DNA Study Finds Aboriginal Australians World’s Oldest Civilization - History in the Headlines.
Pacific Islanders appear to be carrying the DNA of an unknown human species. Paying a heavy price for loving the Neanderthals. One of the biggest surprises about our evolution revealed over just the last decade is the extent to which our ancestors engaged in amorous congress with the evolutionary cousins. Bonking the Neanderthals, it seems, was a bit of a pastime for the distant relatives. It happened many times in Siberia, East Asia, the Middle East and Europe, and across a long period between 100,000 and 40,000 years ago.
DNA from ancient Phoenician stuns scientists. A study of the first DNA obtained from an ancient Phoenician reveals that the man had European ancestry. The research team, which was co-led by Professor Lisa Matisoo-Smith of the University of Otago in New Zealand, sequenced the first complete mitochondrial genome of 2,500-year-old Phoenician buried in North Africa. Experts studied a man dubbed the “Young Man of Byrsa” or “Ariche,” whose remains were taken from a sarcophagus in the ancient city of Carthage, just outside Tunis, the Tunisian capital. Carthage was the center of the Phoenician civilization. Analysis shows that the man belonged to a rare European haplogroup – a genetic group with a common ancestor – indicating that his maternal ancestry is linked to locations on the North Mediterranean coast, probably on the Iberian Peninsula.
DNA Test for Ancestry from National Geographic. Home. Online Resources and Genealogical Tools to Find Your Roots. Online databases make it easier than ever to trace your own family history, and DNA testing allows for the type of deep research conducted for Finding Your Roots with Henry Louis Gates, Jr. These links can help you get started. Trace Your Family History 23andMe Offers DNA testing and resources to learn ancestry and personal health information.
Tracing Your Ancestry. Advances in DNA testing are allowing people to uncover information about their genetic ancestry and find out where some of their ancestors came from. As an African American, I don’t know where my African ancestors originated from. Home - DNA Ancestry Project. African Ancestry – Trace Your DNA. Find Your Roots. Today. DNA solves mysteries of ancient Ireland. She’s a brown-eyed, brown-haired woman, with a face that would be right at home in the Mediterranean or the Middle East.
"Great Surprise"—Native Americans Have West Eurasian Origins. Nearly one-third of Native American genes come from west Eurasian people linked to the Middle East and Europe, rather than entirely from East Asians as previously thought, according to a newly sequenced genome. Forbes Welcome. For $999, Veritas Genetics Will Put Your Genome on a Smartphone App. 10 Breakthrough Technologies 2016: DNA App Store. An online store for information about your genes will make it cheap and easy to learn more about your health risks and predispositions. Own Your DNA.
Having your genome sequenced doesn’t always mean you have full access to the data.