Sentences with phrase «ancient samples from»

We generated a reduced data set covering North - West Europe by excluding ancient samples from Turkey, Greece, and Morocco, resulting in 42 ancient samples for TSHR locus and 30 ancient samples for BCDO2 locus (supplementary fig.

We present whole - genome sequences of 10 ancient samples from archaeological excavations in East England, which date to the late Iron Age and to the early and middle Anglo - Saxon periods and hence let us directly observe and quantify the genetic impact of the Anglo - Saxon migrations in England.

However, the slightly displaced position of the ancient samples from the European cluster in the PCAs (particularly for CTC) suggests a complex history.

Fats are a good target, adds George Cody, acting director of the Geophysical Laboratory of the Carnegie Institution for Science in Washington, D.C. — tough, plentiful, and known to survive in ancient samples from Earth.

The next step will be to gather more ancient samples from before and after a major environmental change — the end of a glaciation, for example, or the arrival of humans in the New World — to see whether any epigenetic changes correlate with the environmental transition.

Not exact matches

Yes... along with representative samples of the many, varied creation stories from around the world - Hindu, American Indian, Mesoamerican, Asian, ancient Egyptian, Greek & Roman, Maori, etc..

From curdling goat milk to sampling sun - dried goat and the world's oldest cookie, Andrew savors the island's ancient edible legacy.

From Ancient India, through Persia, Babylon, Mesopotamia, Egypt, and the glory of Greece, the descriptions of each civilization's rise and decline are full of pictures and biographies that illuminate the times in colorful examples and poetic samplings.

Their work on ancient DNA from Viking Age horses is more promising: Kool and Boessenkool have collected about 100 samples, in different states of preservation, from which they hope to build a detailed picture of how equine populations moved and changed.

At the outset of their multiyear project, Kool and Boessenkool planned to base their research exclusively on ancient flora and fauna DNA samples from museum collections and some fresh excavations.

«It's almost as if we had traveled back in time and sampled the same plant that gave rise to cultivated peanuts from the gardens of these ancient people,» said David Bertioli, an International Peanut Genome Initiative, or IPGI, plant geneticist of the Universidade de Brasília, who is working at UGA.

The researchers found 14 new ancient mitogenome sequences from pre-Phoenician (~ 1800 BCE) and Phoenician (~ 700 - 400 BCE) samples from Lebanon and Sardinia and then compared these with 87 new complete mitogenomes from modern Lebanese and 21 recently published pre-Phoenician ancient mitogenomes from Sardinia.

«We can now obtain meaningful human, pathogen and dietary DNA from a single sample, which minimizes the amount of ancient material required for analysis,» said Warinner.

Ancient DNA could potentially reveal much more: When compared to other Bronze Age samples from around Europe at this time, it could point to the homelands of the warriors as well as such traits as eye and hair color.

It had been a different story at RAS's zoological museum a few days earlier, where she wasn't allowed to sample the bones she had come for because they were already covered with drill marks from other researchers who, like her, hoped to mine the relatively small number of ancient polar bear samples to reveal their evolutionary history.

But that study extracted ancient DNA from liver and intestinal samples using a method susceptible to contamination with modern human and bacterial DNA, Drosou's team argues.

The samples are frequently degraded and prone to contamination by DNA from other sources, and coaxing data out of the ancient material is costly and painstaking work.

On a trip to collect DNA samples from ancient horse bones in Mongolia, Orlando got a whole new perspective on domestication.

They can also pull out the 5 per cent from a fossil sample that actually belongs to an ancient species, rather than subsequent bacterial contamination, by matching it up with DNA from a related, extant species.

Reassured by his nondestructive technique, curators at the Smithsonian and several other museums agreed to let a team led by Moini sample silk objects spanning over 2000 years of history, from ancient Chinese silks and French Renaissance tapestries to a U.S. Civil War flag and silk spun last year.

In some of the e-mail messages, Dr. Mann refers to his assembly of data from a number of different sources, including ancient tree rings and earth core samples, as a «trick.»

Among the team's samples were nine ancient individuals — six males, two females, and a child of undetermined sex — from the Yamnaya culture north of the Black Sea in today's Russia.

The mtDNA sequence the researchers claimed to have obtained from the fossil is quite common in Europe today, making it difficult to rule out the possibility that someone not on the team touched the sample or the lab equipment used in the analysis, says evolutionary geneticist and ancient DNA expert Hendrik Poinar of McMaster University in Hamilton, Canada.

Researchers in Dublin and York used the latest scientific techniques to extract ancient DNA and protein from tiny samples of parchment from documents from the late 17th and late 18th centuries.

Completed last June, the Ancient Biomolecules Centre keeps a computer registry of all its employees» DNA, drawn from hair samples.

The concrete sample examined at the Advanced Light Source by Berkeley researchers, BAI.06.03, is from the harbor of Baiae, one of many ancient underwater sites in the region.

Samples of ancient carbon deposits from this era show a marked increase in concentrations of carbon - 12 relative to its heavier isotope carbon - 13, indicating a lot of lighter carbon might have been suddenly released at the time.

Since the late 1990s, Poinar and his colleagues have analyzed everything from ancient human to extinct ground sloth samples.

Analysis of short DNA fragments from a pair of samples collected in India and Bhutan matched that of an ancient polar bear bone.

In addition to collecting DNA from hundreds of modern wolves as well as mutts and purebred dogs, the dual - origin researchers extracted DNA from dozens of ancient dogs, including a particularly high - value sample from a 4,800 - year - old animal unearthed in Newgrange, Ireland.

«For example, we identify distinct events happening at different times among groups sampled within Pakistan, with some inheriting DNA from sub-Saharan Africa, perhaps related to the Arab Slave Trade, others from East Asia, and yet another from ancient Europe.

MIXED ANCESTRY Tiny samples taken from ancient European skulls, in a process shown here, yielded enough DNA for researchers to determine that farmers and foragers interbred in three different regions from 8,000 to nearly 4,000 years ago.

New diagnostic techniques revealed traces of blood (inset, in blue) in microscopic samples from ancient African artifacts such as this one.

Previously, ancient genome analysis has been limited to samples from northern and arctic regions.

Evolutionary biologist David Lambert of Griffith University in Australia and his team analyzed DNA samples taken from ancient tuatara bones and from living specimens.

Sediment core samples drawn from Lake Titicaca, South America's largest freshwater lake, have revealed a 25,000 - year precipitation record that may rewrite the books on ancient climate.

It is illegal to remove archaeological samples from Egypt, so the researchers dated items from museum collections in Europe and North America, as well as freshly excavated seed samples from Tell es - Sakan on the Gaza Strip, which was an outpost of ancient Egypt.

Their prediction is based on a new method of interpreting data from magnetic traces found in ancient rock samples.

While visiting France a few years back, geologist John Spray of the University of New Brunswick in Canada chiseled some rock samples from the ancient Rochechouart crater in west - central France.

The team also took core samples of mud from 1 to 2 meters below the seafloor and analyzed ancient pollen to determine the age of the samples.

The team collected samples of methane from settings such as lakes, swamps, natural gas reservoirs, the digestive tracts of cows, and deep ancient groundwater, as well as methane made by microbes in the lab.

By employing a technique they developed that involves collecting methane from roughly ten thousand gallons of seawater per sample, they made a surprising discovery: ancient - sourced methane is indeed being released into the ocean; but very little survives to be emitted to the atmosphere, even at surprisingly shallow depths.

Daniel Bradley and Ceiridwen Edwards, geneticists at Trinity College Dublin, obtained samples from 23 ancient Irish bear fossils found in caves in Ireland as well.

Warming and the seas — both on the rise Those ancient samples of sediment from 10 coastal wetlands in North Carolina provide some of the best evidence that sea - level rise closely follows warmer temperatures, Rahmstorf says.

Samples from this Ancient Roman pier, Portus Cosanus in Orbetello, Italy, were studied with X-rays at Berkeley Lab.

These ancient rice samples were compared to a database collected from 216 modern cultivated and wild rice DNA samples from around the world.

Evidence based on ancient DNA samples and historical climate patterns has suggested that the recurrent outbreaks of the second pandemic were caused by multiple reintroductions of Yersinia pestis into Europe, most likely from Asia.

Allaby's team took four core samples of sediments from a section of the site littered with burnt hazelnut shells apparently left by the hunter - gatherers and subjected the samples to both radiocarbon dating and ancient DNA analysis.

Three are present - day people from Peru and Bolivia, whereas another sample comes from an individual from the ancient Wari Empire, which flourished from 600 to 1000 C.E. and predated the Inca in Peru.

The team, which included other geochemists, palaeoecologists and geologists from UCL and the universities of Edinburgh, Leeds and Cambridge, as well as the Geological Survey of Namibia, analysed the chemical elemental composition of rock samples from the ancient seafloor in the Nama Group - a group of extremely well - preserved rocks in Namibia that are abundant with fossils of early Cloudina, Namacalathus and Namapoikia animals.