Articles tagged with Ancient Dna
Ancient DNA from two high-coverage genomes reveals continuity with modern Japanese populations, continental ancestry, and starch adaptations in Japan. The study suggests interactions among multiple continental populations shaped Yayoi ancestry.
Ancient human genomes showed differing functional PSPH gene variants, with modern-day phosphoserine phosphatase having the greatest function. The study highlights potential in combining evolution-guided variant prioritization for uncovering functional differences.
Researchers recovered and analyzed ancient viral DNA from a local community in northern Chile, revealing the strongest direct evidence linking European colonization to the introduction of smallpox to the Americas. The study shows that smallpox evolved in a way that allowed it to spread successfully with minimal adaptation.
A study of ancient DNA from over 500 mammoth bones found that Ice Age humans selectively targeted female woolly mammoths, unlike the sex ratio among naturally occurring remains. The research sheds light on how ancient humans and mammoths interacted across the Late Pleistocene.
Researchers analyzed DNA from 142 individuals buried in medieval graves, finding that close biological relatives were rare among those buried together. The study also sheds light on the lives of children in early Christian Scandinavia, suggesting gender identity was recognized early in life.
A study by researchers from the University of Ottawa found that Calling and Non-calling western toads are genetically distinct, behaviourally different, and have ecological variations. This discovery has important implications for conservation and wildlife management in Canada.
A study analyzing ancient DNA from 111 individuals across Sicily's archaeological sites reveals a genetic 'melting pot' where Christians and Muslims coexisted, challenging the idea of large-scale population change.
A new study reveals that ancient bacterial genomes from teeth of human remains found at four hunter-gatherer cemeteries in East Siberia reconstructed the earliest forms of plague. The findings suggest that these early strains were highly lethal and carried a unique superantigen, increasing the severity of infection.
Researchers found that carbon from land was eroded and transported into the ocean, locking some carbon away for long periods. This process may have acted as a stabilising climate feedback, helping to gradually reduce atmospheric carbon levels over thousands to tens of thousands of years.
Scientists mapped the genetic history of ancient grapevines from Tuscany's Cetamura del Chianti settlement, discovering a single, identical variety passed down for centuries. The study found that white grapes were dominant in ancient Chianti, contradicting the region's modern reputation for red wines.
A UAB research team analyzed the genome of 54 newborns to track the genetic history of the Iberians. The study found a great genetic continuity, with little external influence, until the arrival of Romans, who introduced new genetic influences.
Researchers analyzed permafrost samples to recover ancient environmental DNA, revealing genetic diversity among Arctic ground squirrels. The study uncovered previously unknown lineage dating back 700,000 years, challenging previous assumptions about fossil remains.
Researchers analyzed DNA in ancient dental calculus to understand past oral microbiomes, finding differences in composition and phylogenetic relationships across time periods. The study provides new insights into the history of relationships between humans and microorganisms.
A genetic test analyzing over 300 free-roaming canines found that most carry a significant amount of dingo DNA, with levels highest in southeastern Australia. The finding has major implications for species classification and population management.
Scientists found that specific genetic sequences, known as HAQERs, have a significant impact on human language abilities. These regions evolved before humans and Neanderthals diverged and are thought to be responsible for the development of modern human language.
A massive study of ancient DNA from nearly 16,000 people across over 10,000 years in West Eurasia reveals that natural selection has shaped modern human genomes more than previously thought. Many gene variants linked to health and complex traits have been selected since farming began.
Researchers found that dogs were domesticated from grey wolves more than 14,000 years ago and contributed substantially to the genetics of modern dogs. The study analyzed DNA from 216 ancient remains, including a 14,200-year-old dog, confirming that European dogs share ancestry with Asian dogs.
A new study has identified ~2.3 million conserved non-coding DNA sequences across 284 plant species, revealing deep principles of plant genome evolution. These ancient regulatory sequences can be maintained despite repeated genome duplications, opening the door to precise engineering of plant traits.
Researchers discovered temperate trees, including oak, elm, and hazel, in Doggerland over 16,000 years ago, revealing a surprisingly hospitable environment. The study suggests that Doggerland may have supported early Mesolithic communities prior to flooding, shedding light on the region's ecological history and human settlement patterns.
Scientists successfully sequenced a woolly rhinoceros genome from a 14,400-year-old tissue sample found in an ancient wolf's stomach. The study reveals that the species likely died out due to rapid population collapse rather than gradual decline.
A new study suggests that genetic differences passed down from ancient human ancestors and exposure to common chemicals could explain why some women are more likely to develop endometriosis. Researchers identified six genetic variants linked to the condition, which also occur in genes sensitive to modern pollutants.
Scientists have discovered wolf remains, thousands of years old, on a small, isolated island in the Baltic Sea. The study suggests that grey wolves may have been managed or controlled by prehistoric societies, with evidence of complex relations and interactions between humans and wolves.
Researchers have successfully isolated and sequenced RNA molecules from Ice Age woolly mammoths, providing new insights into the biology of extinct species. The study reveals that RNA can be preserved for nearly 40,000 years, offering a glimpse into the final moments of life.
Researchers developed a new DNA analysis technique to study old genetic samples, shedding light on disease evolution and changes in biology over time. The approach has potential for unlocking the root causes underlying shifting landscapes of modern diseases.
Scientists studied Neanderthal DNA to understand how facial features develop and evolve. They found a region of DNA that activates the SOX9 gene, leading to a larger lower jaw in Neanderthals. This discovery sheds light on the genetic mechanisms behind face variation and evolution.
A study led by Göttingen University found that a group of algae, Coleochaetophyceae, gained complex body structures around 65 million years ago. The team analyzed genetic evolution and fossil evidence, revealing that plant-like complexity is an ancient potential that emerged multiple times.
Researchers extracted DNA from Napoleon soldiers' teeth and identified Salmonella enterica and Borrelia recurrentis as causes of enteric fever and relapsing fever. The discovery sheds new light on the factors contributing to the army's downfall.
A recent study found that Baltic diatom populations experienced accelerated genetic changes in response to human activity, but remained stable for millennia. The research team extracted ancient DNA from sediment cores and sequenced the genetic material of two cell organelles to analyze changes over 8,000 years.
Researchers have uncovered microbial DNA in woolly and steppe mammoth remains dating back over 1 million years, identifying bacteria possibly causing disease in mammoths. The findings provide an unprecedented glimpse into the microbiomes of extinct megafauna.
A study by Alfred Wegener Institute revealed that microalgae in the Southern Ocean played a significant role in reducing global atmospheric CO2 levels 14,000 years ago. The findings suggest that changes in sea ice extent had a direct impact on algal productivity and carbon transport to the deep sea.
Researchers discovered that languages from different continents and populations become more similar after contact, with rates of borrowing ranging from 4-9%. The team found that linguistic features are not consistently transferable, challenging long-held assumptions about language learning.
Researchers discovered that ancient Iranian communities, around 11,000 years ago, brought wild boars hunted in dispersed parts of the landscape as gifts for a communal celebration. The findings suggest this practice of offering gifts with geographical symbolism can be traced back to prehistory.
A new study has mapped the history of infectious diseases across millennia, offering insights into how human-animal interactions transformed our health landscape. The research analyzed ancient DNA from over 1,300 prehistoric individuals, revealing that zoonotic diseases became more widespread around 5,000 years ago.
A new study has found that two ancient Ice Age 'puppies' are likely to be wolf cubs, not dogs, based on genetic analysis of their gut contents and other chemical 'fingerprints'. The discovery provides insight into the diet and breeding behaviors of Pleistocene wolves, which lived in a diverse environment with varied ecosystems.
A new study analyzing ancient genomes from seven individuals in present-day Honduras provides insights into the genetic origins of the Classic Maya people and their population expansion or decline during the rise and fall of their civilization. The research contributes to our understanding of human history, population dynamics, and env...
A group of elasmosaur fossils has been formally identified as belonging to a new genus, Traskasaura sandrae. This ancient marine reptile, measuring 12 meters long and having heavy, sharp teeth, likely hunted prey from above using its strong swimming capabilities.
Researchers mapped the evolution of Borrelia recurrentis, a type of bacteria causing relapsing fever, by analyzing ancient DNA. The study found that the species likely diverged from its tick-borne cousin around 6,000 years ago and gained new genes over time, allowing it to spread through human lice.
Researchers have mapped a 7,000-year-old genetic mutation that provides protection against HIV, found in 18-25% of the Danish population. The mutation arose in an individual from the Black Sea region between 6,700 and 9,000 years ago.
The study reveals that Phoenician culture spread primarily through cultural transmission and assimilation, with little direct genetic contribution from Levantine ancestors. Punic sites showcased a highly heterogeneous genetic profile, with individuals having both Sicilian-Aegean and North African ancestry.
Researchers found distinct subpopulations of wild baker's yeast in different regions, coinciding with human activity and migration patterns. The study suggests that humans may have unintentionally influenced the environment by introducing microorganisms thousands of years ago.
Penghu 1, discovered on the seabed of the Penghu Channel in Taiwan, is revealed to be a Denisovan mandible dating back to 10,000 years ago. The fossil's molecular identification sheds light on the mysterious distribution and appearance of Denisovans in eastern Asia.
A new study deciphers ancient DNA from the Green Sahara, providing critical insights into the African Humid Period and its impact on human migration. The research reveals a unique genetic lineage that remained isolated for thousands of years, highlighting North Africa's heritage.
The Cuban blue-headed quail dove is an enigmatic bird species with a perplexing evolutionary history. Its DNA analysis reveals it to be more distinct from other doves than previously thought, dating back at least 50 million years.
A new study found that Neanderthals experienced a drastic loss of genetic variation approximately 110,000 years ago, leading to their eventual extinction. The research measured the morphological diversity in semicircular canals, which revealed lower diversity in classic Neanderthals compared to pre-Neanderthals and early Neanderthals.
A groundbreaking study finds evidence of female political and social empowerment in ancient Britain, where land was inherited through the female line. This system, known as matrilocality, was found to be widespread across Iron Age Britain, with dominant matrilines established before 400 BC.
Researchers used a new data analysis method called Twigstats to analyze over 1500 European genomes from the first millennium AD, revealing waves of migration across Europe. The study found that Germanic-speaking people moved south into southern Germany, Italy, and Britain, while also showing northward waves of migration into Scandinavi...
Researchers have analyzed ancient DNA from Mexico, Chile, Peru, and Argentina to determine the origin of syphilis. The study found that syphilis-like infections occurred in the Americas for millennia and supports an American origin for the disease.
Researchers used a century-old grapevine cutting to reconstruct the history of Pierce's disease in California, finding that the pathogen arrived in the US nearly 150 years earlier than previously thought. The study suggests multiple introductions of the pathogen and potential genetic variations may impact disease management.
A new analysis of DNA from ancient modern humans in Europe and Asia has determined that Neanderthals interbred with modern humans from approximately 50,500 to 43,500 years ago. This period of interbreeding left Eurasians with many genes inherited from their Neanderthal ancestors.
Researchers have unraveled the precise timing and functional legacy of Neandertal gene flow into early modern humans. The study suggests that most non-African individuals harbor one to two percent Neandertal ancestry, with the majority tracing back to a single shared period between 50,000 and 57,000 years ago.
A genetic study of the beaked hazelnut reveals that ancient Indigenous peoples cultivated and traded this plant across British Columbia. The research challenges settler-colonial narratives by establishing a large-scale cultivation network dating back 7,000 years.
Researchers reconstruct genomes of 1,000-year-old maize cobs to reveal close genetic link with Northern Flint varieties, showing the selection process that shaped this globally important food crop. The study provides valuable information for crop breeders to reintroduce lost genetic diversity and develop new varieties.
Researchers reconstructed the journey of maize into eastern North America, tracing its dispersal routes and history of selection. Ancient genomes reveal a genetic link between Northern Flints and 1,000-year-old Ozark maize, highlighting early adaptations for local climates and culinary preferences.
Scientists have developed a novel enzyme, SUPer RNA EcoGII Methyltransferase (SUPREM), which can selectively modify RNA and has high methylation activity. This tool can be used to investigate RNA modifications in various diseases, providing new insights into their role in cell health.
A novel method has been developed to infer DNA methylation patterns in non-skeletal tissues from ancient specimens, providing new insights into human evolution. The study found over 1,850 sites of differential methylation specifically in prefrontal cortex neurons, linked to genes crucial for brain development.
Researchers used ancient DNA to uncover novel signatures of adaptation in early Europeans, tracing genetic changes in response to lifestyle shifts. The study identified 14 regions of the genome that underwent significant natural selection, including traits related to vitamin D production and dairy digestion.
Ancient DNA from Pompeii's body casts reveals diverse genomic backgrounds and cosmopolitan ancestry, contradicting long-held assumptions about sex and family relationships. The findings highlight the importance of integrating genetic data with archaeological and historical information to avoid misinterpretations.
A study analyzing DNA from skeletal remains in Pompeii casts reveals the cosmopolitan origin of the city's inhabitants, contradicting previous physical appearance-based assumptions. Genetic data also sheds light on ancestry, sex, and familial relationships, challenging traditional notions.
Geneticists deciphered aurochs prehistory by analysing 38 ancient genomes from Siberia to Britain. The study highlights diverse wild forms and the impact of climate change and domestication on their evolution.
Researchers have used ancient DNA to corroborate a 800-year-old Norse saga about King Sverre Sigurdsson's military raid. The study reveals details about the 'Well-man,' including his likely blue eyes, blond hair, and ancestral origins in southern Norway.