Articles tagged with Ancient Dna
Researchers use ancient DNA to confirm that extinct glyptodonts were indeed enormous armadillos. The study reveals that these prehistoric creatures evolved from medium-sized forms to become true megafauna over millions of years.
Researchers estimate that approximately one-third of British ancestors were Anglo-Saxon immigrants, who mixed with the native population. Genome sequences from ancient skeletons and modern-day DNA data reveal integrated communities and support a long-standing debate among historians and archaeologists.
A new study using ancient DNA and paleoclimate data found that rapid warming events played a greater role in the extinction of megafauna than human activity. The researchers analyzed DNA records over 50,000 years and compared them to climate event records from Greenland ice cores.
A new study based on Kennewick Man's genome sequence shows that he is more closely related to modern Native Americans than to any other population worldwide. This contradicts earlier cranial morphology analyses that suggested a European or Asian ancestry, sparking controversy and legal battles over the skeleton's repatriation.
A new study on Kennewick Man's DNA reveals a close genetic link to Native American populations, particularly the Confederated Tribes of the Colville Reservation in Washington. The findings challenge a previous study that suggested a connection to indigenous Japanese or Polynesian peoples.
A new study has successfully detected epigenetic marks in 29 out of 30 ancient human remains from five North American archaeological sites, spanning over 4,500 years. The findings could provide insights into how past environments affected the physical traits and health of ancient populations.
Scientists successfully extracted DNA from Australia's extinct giant kangaroos, confirming their close relationship with modern macropods. The study also sheds light on the distinct lineage of short-faced kangaroos and highlights the importance of conservation for endangered species like the banded hare-wallaby.
International research confirms King Richard III's identity to 99.999% accuracy using DNA and genealogical study. The study also reveals his likely appearance, including almost certainly blue eyes and probably blond hair, as seen in the Arched-Frame Portrait.
Researchers used supercomputing simulations to analyze ancient DNA from a 24,000-year-old Siberian boy, revealing that modern Europeans are a mixture of three distinct ancestral populations. The study challenges the prevailing view that only two groups mixed in Europe between 7,000 and 8,000 years ago.
Scientists analyzed DNA from ancient European skulls and found that they were intolerant to lactose for 5,000 years after adopting agriculture. Major technological transitions in Central Europe were associated with changes in genetics of these populations.
A new study by Harvard Medical School and University of Tübingen reveals that present-day Europeans descend from three ancestral groups: Ancient North Eurasians, Basal Eurasians, and Near Eastern farmers. Genetic analysis found that Northern Europeans have more hunter-gatherer ancestry while Southern Europeans have more farmer ancestry.
A new study by the University of Adelaide's Australian Centre for Ancient DNA has solved a 150-year-old evolutionary mystery about the origins of giant flightless birds. The research found that the kiwi is most closely related to the extinct Madagascan elephant bird, contrary to previous claims.
A study analyzing ancient chicken DNA found that traits like yellow skin only became widespread in the last 500 years, contradicting previous assumptions about domestication. Researchers compared DNA from 81 ancient chickens to those of modern chickens, revealing significant genetic differences.
A study analyzing ancient DNA from over 250 radiocarbon-dated moa samples reveals that the iconic New Zealand bird was thriving when humans arrived, contradicting previous theories of population collapse before human arrival. The research suggests human activities contributed to the moa's extinction.
Researchers have identified genetic markers of original Polynesian chickens, tracing early movements and trading patterns across the Pacific. The study also found that these lineages survived on isolated Pacific islands despite European introduction.
A new statistical model has been developed to isolate ancient DNA from fossils contaminated with modern-day DNA. This method allows for the recovery of complete mitochondrial genomes from Neandertal and anatomically modern human bones, enabling scientists to study these individuals in detail.
Researchers have discovered a direct ancestral link between ancient human remains and Native American communities, revealing insights into the initial peopling of the Americas. By analyzing genomes of ancient and modern populations, scientists can reconstruct the evolutionary history and adaptations of early Americans.
A recent study reconstructed the first detailed genetic history of modern-day Europeans using ancient DNA from 364 prehistoric skeletons. The research found dramatic population changes with waves of migration from Western and Eastern Europe, contradicting previous assumptions about the Near East's role in shaping European genetics.
A team of researchers from the University of Manchester used next generation sequencing techniques to analyze sub-fossilized insects in copal and found no evidence of ancient DNA. The study suggests that DNA survival in resin inclusions is unlikely, raising doubts about claims of DNA extraction from fossil insects in amber.
Researchers have discovered a direct genetic link between ancient Native American remains and their living descendants using mitochondrial DNA analysis. The study, published in PLOS ONE, found three maternal lineages from ancient times to the present, providing a unique connection between oral traditions and genetic evidence.
Ancient DNA analysis confirms Yersinia pestis as the cause of the Justinianic Plague. The results provide insights into the phylogeny and origin of this plague, contradicting previous theories. This breakthrough sheds new light on a major pandemic in European history.
Researchers used ancient DNA to reconstruct past plankton communities in the Black Sea, shedding light on climate-driven changes and human impact. The study found that marine ecosystems are highly sensitive to climate change and human disturbances.
Researchers from the University of Adelaide's Australian Centre for Ancient DNA extracted ancient DNA from two specimens and compared it to extinct relatives. They found that the Falkland Islands wolf diverged from its closest living relative around 16,000 years ago, revealing a 16,000-year-old island colonization process.
Researchers sequenced complete mitochondrial genomes from ancient Polynesian samples, revealing three individuals with no recent maternal ancestor in common. This suggests a diverse founding population and challenges previous theories about the pathways of great migration across the Pacific to New Zealand.
A novel genetic study led by CU-Boulder postdoctoral researcher Jessica Metcalf has clarified the native diversity and distribution of cutthroat trout in Colorado, revealing a single surviving population outside its native range. The study also confirmed the extinction of two previously unknown cutthroat strains, including one from the...
A study using ancient DNA from archaeological sites found that gray whales had a substantially larger population before whaling and experienced a sharp recent decrease, consistent with whaling as the cause. The research suggests a pre-whaling decrease in population size of about 78,000 to 116,000 individuals.
Scientists have discovered that antibiotic-resistant genes existed in ancient DNA from 30,000-year-old permafrost. This finding suggests that resistance is a natural phenomenon that predates modern clinical antibiotic use.
A Washington State University student's research has challenged a widely held assumption on the best way to analyze ancient DNA in anthropological and forensic investigations. Direct sequencing was found to be as effective as cloning in analyzing degraded DNA, with potential cost savings and time efficiency benefits.
A recent genetic study has overturned current thinking on the origins of European farming populations. The research, published in PLOS Biology, found that these early farmers were more closely related to populations living in modern-day Turkey, Iraq, and other parts of the Ancient Near East than to local hunter-gatherers.
Researchers have successfully recreated mammoth haemoglobin using ancient DNA from Siberian specimens. The team's findings reveal unique physiological adaptations that allowed mammoths to survive in harsh Arctic conditions, enabling them to cool their extremities and minimize heat loss.
Researchers found a surprising connection between ancient caribou bones and a massive volcanic eruption that blanketed the region with ash 1,000 years ago. The study suggests that changes in local wildlife may have been linked to environmental changes caused by the eruption.
Researchers overcome DNA contamination hurdle to analyze 30,000-year-old human DNA using modern sequencing techniques, providing insights into the evolution and prehistory of our species. The study allows scientists to directly glimpse into the genetic makeup of ancient humans who lived tens of thousands of years ago.
Researchers uncovered genetic fossils of woolly mammoths and ancient American horses in permafrost samples dated to between 7,600 and 10,500 years. The study challenges the conventional view that these species disappeared from the Americas about 12,000 years ago.
Researchers discovered ancient DNA samples in permafrost soil, dating back to between 10,500 and 7,500 years ago, indicating that mammoths and prehistoric horses roamed the area for 2,600-5,600 years longer than previously assumed. This finding sheds new light on the extinction of these species.
Researchers used DNA samples from frozen dirt to revise the history of woolly mammoths and ancient horses in North America. The analysis shows that these animals survived until at least 10,000 years ago, contradicting previous extinction theories based on fossil bones.
Ancient DNA analysis reveals new horse species in Eurasia and South America, with the Cape zebra found to be a large variant of the modern Plains zebra, while a small hippidion horse was discovered in South America. A new ass species also appears related to European fossils dating back 1.5 million years.
Researchers at the University of Warwick discovered that an ancient form of barley could survive water stress better than modern varieties. The study found that a mutation in six-rowed barley led to its transformation into two-rowed barley, which was cultivated for over three millennia.
Researchers successfully retrieve DNA from ancient macrofossils up to 26,000 years old and dried museum beetle specimens up to 188 years old using a non-destructive DNA extraction method. This breakthrough has significant implications for population genetic studies and reconstruction of ancient biodiversity.
Ancient DNA and palaeontology researchers analyzed coprolites from giant extinct birds to build a detailed picture of an ecosystem dominated by these species. The findings suggest that some moa grazed on tiny herbs, while others are threatened or rare due to their extinction.
The researchers sequenced the mammoth's nuclear genome, yielding information about its evolution and extinction. They found that woolly mammoths separated into two groups around two million years ago and eventually became genetically distinct sub-populations.
A new DNA study from the University of Adelaide has challenged long-held claims of pre-historic Polynesian contact with South America. The study found no evidence to support the idea that chickens were introduced to South America by Polynesians before Spanish arrival.
A new study published in PLOS ONE successfully extracted and analyzed authentic DNA from ancient Viking skeletons, avoiding contamination issues. The analysis revealed that the Vikings were genetically diverse and showed no evidence of extraneous DNA.
A novel method for sequencing ancient DNA has been developed using the Genome Sequencer FLX system, enabling researchers to study extinct animals with unprecedented accuracy. The technique involves extracting DNA from hair shafts, which are more undamaged and uncontaminated than traditional samples.
A research team has found ancient bacteria with active and living DNA, marking the oldest finding of organisms containing life on Earth. The discovery sheds light on cell aging and regeneration processes.
A new DNA sequencing approach allows researchers to analyze ancient ecosystems in just a few hours, providing more accurate and complete information. This breakthrough helps scientists better understand past climates, species decline, and potential causes of extinction.
Recent research using genetic data analysis and simulation software challenges the common assumption that modern residents of a region are direct descendants of their earlier inhabitants. The study suggests that the Etruscan population may have been more diverse or socially elite, leading to little overlap with modern Tuscans.
Researchers used ancient and modern DNA to study the decline of Ctenomys sociabilis, a colonial tuco-tuco species. The analysis suggests that population bottlenecks and environmental changes led to the loss of genetic diversity, but also hints at the evolution of social behavior.
Researchers discover that crystal clusters in fossil bones can preserve ancient DNA, which is better preserved and contains longer fragments than untreated ground bone. This method holds promise for yielding more authentic results in the analysis of ancient DNA.
A recent study using ancient DNA extracted from fossilized bones of extinct American big cats has shed new light on their evolutionary history. The research reveals that the saber-toothed cats were a sister group to modern felines and diverged early on from their ancestors.
A recent study using ancient DNA has confirmed that all living lemurs on the island of Madagascar descended from a single primate ancestor. The researchers analyzed DNA from nine subfossil individuals and found that they are closely related to living indriids, but not to other extinct species.
Researchers at Oxford University extracted DNA from fossil eagle bones to study the extinct Haast's eagle, which was related to a small Australian wedge-tailed eagle. The eagle grew to be massive due to abundant prey and lack of predators.
A team of researchers analyzed ancient DNA from Joseph Merrick, aka the Elephant Man, to uncover the cause of his severe deformities. The study revealed that Merrick likely suffered from Proteus syndrome, while some experts suggest he may have had both Proteus syndrome and neurofibromatosis.
A team of scientists has discovered a group of enzymes capable of duplicating damaged genetic material, allowing cells to 'compromise' and replicate with a certain 'sloppiness'. This mechanism increases genetic diversity and enables natural selection, driving the evolutionary process.
Researchers at the Weizmann Institute of Science have revealed the molecular repair mechanism known as S.O.S. repair, which fixes DNA damage and introduces random genetic material to create a beneficial mutation. This discovery provides new insights into diseases like cancer and bacterial resistance to antibiotics.
Researchers have identified the binding structure of DNA and protein in ancient hyperthermophilic archaeons, revealing a more complex and interesting mechanism than previously thought. The study sheds light on how proteins attach to DNA to stabilize and protect it in extreme conditions.
A research team has discovered a key gene in the human telomerase enzyme, which could aid in diagnosing cancer. The discovery also provides opportunities for developing new treatments by inhibiting the enzyme.
A team of researchers found that Neandertal mitochondrial DNA falls outside normal human variation, indicating they did not contribute to the genetic makeup of modern humans. The study also confirms the origins of modern humans in Africa and suggests a divergence of 500,000 to 600,000 years ago.