Articles tagged with Genetic Anthropology
African pastoralists, specifically the Himba community, exhibit a remarkably high rate of extra-pair paternity, with 48% of children fathered by non-marital partners. The study highlights how social norms support this practice, unlike in many Western societies where it is stigmatized.
A study analyzing ancient DNA samples from Rome and adjacent regions found at least two major migrations into the city, with influences from North Africa, Europe, and the Near East. The population's ancestry shifted significantly over time, reflecting Rome's shifting alliances and cultural exchange.
The study reveals at least two major migrations into Rome, as well as several smaller but significant population shifts, over the last few thousand years. The genetic data show that immigrants from the Near East, Europe, and North Africa pulled up their roots and moved to Rome, significantly changing its face.
Researchers have confirmed genetic ties among three individuals buried together after a 13th-century massacre by the Mongol army, shedding new light on the tragic event. The DNA analysis reveals a grandmother, daughter, and grandson were part of the same family.
A new study explores genetic roots of 26 populations from diverse regions and cultures of western South America and Mexico, revealing long-distance connections between speakers of the same language. Genetic analysis also found a distinct ancestry component in Amazonia present at high frequency in populations from Ecuador and Colombia.
Researchers from University of Kansas will analyze genomic data from ancient and contemporary Aleutian Islanders to understand their evolutionary and cultural history. The study aims to uncover the genetic influence of Russian colonization and how the unique environment prompted biological adaptations.
The American Society of Human Genetics has issued a position statement outlining the responsibility to recontact research participants with new genetic findings. The statement recommends that researchers make reasonable attempts to recontact participants if the reinterpretation is expected to affect medical management, but not strongly...
The study analyzed 271 genomes from the Iberian Peninsula and found that a group of steppe descendants replaced almost all men 4,000 years ago. The research team also discovered that Basque genetics have hardly changed since the Iron Age, with a high frequency of the Y chromosome R1b.
A large-scale ancient DNA study reveals that local Y chromosomes were almost completely replaced during the Bronze Age in the Iberian Peninsula. Genetic variation among hunter-gatherers and intermingling with people from North Africa and the Mediterranean provide new insights into the region's history.
A recent genetic study published in Nature Communications analyzed genome-wide data from 45 individuals in the North Caucasus region, revealing a complex interaction between populations from the Eurasian steppe and the Caucasus Mountains during the Bronze Age. The study shows that despite harsh mountain terrain, groups living throughou...
Traces of cocoa dating back 5,300 years have been discovered in the Santa Ana-La Florida archaeological site in Ecuador. The study suggests that the Mayo Chinchipe civilization consumed cocoa almost continuously from 5,300 to 2100 years before present.
Two ancient populations that diverged later 'reconverged' in the Americas, according to a new genetic study. The study challenges previous research suggesting a single ancestral branch for Native Americans.
Researchers at Texas A&M University found that early settlers in interior western Canada used the Pacific coastal route to reach temperate North America, contradicting traditional theories of migration. The fluted spear points provide evidence supporting new genetic models explaining how humans colonized the New World.
Researchers from ANU have created a comprehensive study on the origins of people in Vanuatu, using DNA analyses and archaeological evidence. The results confirm that Vanuatu's first people arrived 3,000 years ago from South East Asia, with Papuan arrivals following shortly after.
A new study using ancient and modern genome-wide data found that Papuan ancestry replaced early Austronesian-Lapita population in Vanuatu, yet the original Austronesian languages persisted. This provides a unique case of demographic history where genetic ancestry but not language was replaced.
A Penn State research group used genetic and genealogical studies to develop a curriculum that connects students with their heritage, increasing interest in science among minorities. The program showed promising results, empowering middle school students to explore science through personalized genetics and genealogy.
Researchers found that Noir Marron communities in French Guiana and Suriname have remarkably preserved their African genetic heritage, unlike African-descendants from Brazil and Colombia. The study sheds new light on the history of enslaved Africans in greater detail.
A large-scale genetic study of Papuan New Guinean people found strong genetic differences between groups, reflecting linguistic and cultural diversity. The study suggests that the country's isolated highlands region has remained genetically independent for thousands of years.
A recent genetic study has challenged long-held assumptions about the relationship between extinct and living elephant species. The research found that a species of giant elephant, Palaeoloxodon antiquus, is more closely related to African forest elephants than previously thought.
A recent study has successfully recovered and analyzed ancient DNA from Egyptian mummies, providing new insights into the genetic history of ancient Egyptians. The research found that modern Egyptians share more ancestry with Sub-Saharan Africans than ancient Egyptians did, and were most closely related to ancient populations in the Ne...
A new genomic study on southern Mediterranean populations from Sicily and Southern Italy reveals a shared genetic background extending to Cyprus, Crete, Anatolia, and the Aegean islands. This shared Mediterranean ancestry may have originated in prehistoric times as a result of multiple migration waves.
A new analysis reveals that people with indigenous backgrounds are less likely to be identified after death due to inadequate family involvement and trust issues with government institutions. Non-governmental organizations can serve as bridges between families and authorities to improve identification rates.
Researchers analyzed cranial traits to determine Scythian gene pool formation. Results suggest both hypotheses of Scythian ethnogenesis are partially correct, indicating a mix of Central Asian migrants and local Srubnaya culture populations.
A study found that chimpanzees are more likely to reproduce with mates whose genetic makeup differs from their own, suggesting a unique mating strategy. This preference may help reduce inbreeding depression and increase infant survival rates among chimps.
A study by Dr. Francois-Xavier Ricaut reveals Malagasy genetic diversity is primarily African and Asian, with Austronesian migration dating back around 1,000 years. The Banjar population from Southeast Borneo is thought to be the key driver of this migration.
A new study highlights the potential consequences of reintroducing genetically distinct subspecies into wild populations, particularly in endangered species. Researchers found that hybridization between non-native and local orangutan subspecies can lead to health problems and reduced reproductive success in offspring.
Detailed genetic analysis reveals mitochondrial DNA was present in Island Southeast Asia 11,500 years ago, challenging the 'Out of Taiwan' theory. The linguistic spread of Austronesian languages is attributed to elite groups and cultural exchange, rather than mass migration.
Research reveals that human activities, particularly deforestation and fires, are driving genetic differentiation among the Udzungwa red colobus monkey in Tanzania. The study's findings suggest that these changes are threatening the species' survival, as smaller populations become isolated and more susceptible to extinction.
A study found a significant decrease in male genetic diversity around 4-8 thousand years ago during global growth, suggesting that wealth and power played a stronger role than natural selection. This decline is linked to sedentary farming and the accumulation of material wealth.
The university's forensic geneticist will use the grant to develop and improve 'DNA intelligence' tools that can predict eye, hair, or skin color from genetic material. This technology will aid investigators in identifying unknown suspects and solving cold cases.
Researchers found that the pygmy phenotype in Africa and Southeast Asia is a result of multi-gene adaptation, making individuals better suited for their challenging environments. The study suggests that this adaptation may have occurred independently in different regions.
A genetic study has identified an ancient girl as part of a genetic lineage shared by modern Native Americans, resolving years of speculation about the Americas' first inhabitants. The study, published in Science, used mitochondrial DNA from her tooth to confirm that she came from the same source population as living Native Americans.
A team of University of Missouri researchers completed the genetic history of 134 cattle breeds worldwide, revealing that ancient domesticated African cattle originated in the Fertile Crescent region. This finding proves that cattle were brought to Africa as farmers migrated south and interbred with wild aurochs.
A team of researchers found that ancient domesticated African cattle originated in the Fertile Crescent region nearly 10,000 years ago. The genetic history of 134 cattle breeds worldwide reveals mixing and admixture between native and imported breeds.
Research suggests that natural selection has altered European appearance over the past 5,000 years, with ancient DNA revealing darker skin, hair, and eye pigmentation. This phenomenon is comparable to other examples of adaptive evolution, such as malaria resistance and lactase persistence.
Researchers created a global map detailing the genetic histories of 95 populations across Europe, Africa, Asia, and South America. The study found evidence of previously unrecorded genetic mixing, including European DNA in modern-day China and Mongol DNA in Pakistan.
Researchers found that ancient hunter-gatherers in Central Europe coexisted with immigrant farmers for over 2,000 years. Genetic analysis reveals a specialized diet of fish and other seafood among the hunter-gatherers until their way of life died out around 5,000 years ago.
The Uros populations of Peru and Bolivia possess a unique genetic ancestry that predates the arrival of Spanish conquistadors, potentially dating back to 3,700 years ago. Their divergent genetic lineage is distinct from surrounding Andean populations.
Researchers at Tel Aviv University found a clear genetic connection between fat and bone mass, which can impact body composition and overall health. The discovery highlights the importance of considering both factors in treatment plans to avoid negative side effects.
A University of Toronto Scarborough researcher helped create a family tree of placental mammals, placing humans in the tree of life. The study used genetic and physical traits to conclude that placental mammals diversified much later than previously thought, with all major groups alive today originating after the dinosaurs' extinction.
A University of Michigan-led study found that individuals of mixed ancestry among hybrid howler monkeys are physically indistinguishable from pure individuals of each species. The findings suggest that the role of interbreeding in human evolution may have been underestimated due to limitations in the fossil record.
A new Stanford analysis integrates genetic and anthropological data to provide a comprehensive understanding of human expansion out of Africa. The study reveals that this event had a significant impact on human genetic diversity, which persists in present-day populations.
Researchers found that young male orangutans migrate across the island to increase breeding chances and preserve genetic diversity. The study suggests protecting mountainous regions with no viable populations to maintain genetic exchange and promote species survival.
Two studies led by University of Pennsylvania scientists uncover new information about Native American and First Nations migration patterns, genetic impact of cultural practices and historical relationships among groups. The research provides the first clear evidence of shared markers in DNA of people living in the circumarctic region.
Researchers found a genetic connection between Native Americans and southern Altaians, suggesting the Altai region as the potential source of the earliest Native Americans. The study analyzed mitochondrial DNA and Y chromosome DNA markers to define the founding lineages of Native American populations.
A University of Pennsylvania team has made significant inroads into understanding how Ethiopian populations adapt to high-altitude environments. Their genome-wide study reveals that different genetic mutations, known as convergent evolution, are responsible for their unique physiological traits.
A new study using genetic information explores the effects of continental axes and climates on human migration and adaptation in the Americas. The research suggests that the north-south orientation of the American continents slowed the spread of populations and technology, compared to the east-west axis of Eurasia.
Research from Tel Aviv University finds that genetics play a key role in lower back pain and disc degeneration, with different genetic factors causing both conditions. The study suggests that identifying these genetic factors could lead to more effective treatment options.
A new study by Washington University in St. Louis anthropologist Glenn Stone suggests that genetically modified Bt cotton seeds may have overemphasized crop yield gains, potentially harming sustainable farm management. The research found a modest rise in crop yields despite decreased pesticide sprayings.
A new study found that female mandrills reproduce with males whose genes complement theirs, increasing the chances of their offspring resisting disease. The researchers believe this may be due to smell or selective fertilization, and the discovery supports the idea humans may also choose genetically compatible mates.
A new study by the University of Florida combines socio-cultural and genetic data to reveal health disparities between different groups. The research suggests that social classification is a better predictor of disease status than genetic ancestry.
A recent study by University of Oklahoma's Cecil Lewis explores genetic ancestry influences on health and population genetics. The research finds that eastern South America has more genetic diversity than previously expected, contradicting the widely accepted peopling timeline.
Sharing personal genetic information online raises ethical questions about privacy and consent. Stanford researchers say we need more data on who's giving out information and how it's being used to fully understand its implications.
A study using African Americans with West African and European ancestry found a strong statistical correlation between genetic admixture and facial traits. The researchers measured distances between specific face landmarks to compare genetically determined admixture with facial feature differences.
A new study reveals that up to one in 17 men in the Mediterranean basin may have a Phoenician ancestor, with a genetic signature distinct from other trading and settlement expansions. The analysis of Y-chromosomal lineages suggests that the Phoenicians contributed at least 6 percent to modern populations.
A genetic study of native North Americans offers new insights into the migration of Athapaskan natives from subarctic northwest America to the southwestern United States. The study found that a small group of Athapaskans successfully assimilated with native groups, leaving a lasting legacy in their language and genes.
A study of ancient Danish burial grounds found a man with Arabian origin, contradicting the myth of a pure Scandinavian race. The discovery indicates greater mobility among iron age populations and suggests that people from distant lands were absorbed into Danish communities.
A new statistical approach has been developed to study genetic variation, allowing for a finer detail of human migration history. The technique analyzes shared parts of chromosomes across the entire human genome, identifying smaller genetic contributions and surprising findings such as Mongolian ancestry in Native American Pima people.
A team of researchers, led by Ted Goebel and Michael R. Waters, revises the timeline of early American arrival, proposing a 15,000-year-old migration from Alaska. New data synthesizes genetic, archaeological, and skeletal evidence to explain the complex process of peopling America.
A comprehensive genetic study of Pacific Islanders has found that Polynesians and Micronesians have almost no genetic relation to Melanesians. Instead, they share a strong genetic connection with Taiwan Aborigines and East Asians, suggesting a rapid migration through Island Melanesia with minimal intermingling.