Sentences with phrase «eurasian populations»

Nearly all of the Indian subcontinent's ethnic and linguistic groups are the product of three ancient Eurasian populations who met and mixed: local hunter - gatherers, Middle Eastern farmers, and Central Asian herders.

It is widely acknowledged that during this time, anatomically modern humans started to move out of Africa and assimilate coeval Eurasian populations, including Neanderthals, through interbreeding.

Not exact matches

Then while one branch headed east toward Melanesia and Australia, another branch of this founder population (sometimes called «basal Eurasians») spread north and west into Europe and central Asia.

The second was the hypothesized presence of a «basal Eurasian» population — a population of Western Asians that never interbred with Neanderthals.

Our findings reveal the timing of divergence of western Eurasians and East Asians to be more than 36,200 years ago and that European genomic structure today dates back to the Upper Paleolithic and derives from a meta - population that at times stretched from Europe to central Asia.

So the study has not only made it possible to confirm the Eurasian origin of the U6 lineage but also to support the hypothesis that some populations embarked on a back - migration to Africa from Eurasia at the start of the Upper Palaeolithic, about 40 - 45,000 years ago.

That woman was part of the first population of our species that inhabited Europe following the Eurasian expansion of Homo sapiens from Africa, and the lineage she belongs to reinforces the hypothesis of a back - migration to Africa during the Upper Palaeolithic, say investigators.

With hindsight, it seems obvious that there might be Eurasian genes in populations in the south of Africa once thought...

But, he says, «a western Eurasian migration into every population they study in Africa — into the Mbuti pygmies and the Khoisan?

«There is no longer any West Eurasian ancestry inferred in West and Central African populations,» says Harvard population geneticist Pontus Skoglund, who alerted Manica to the problem.

Co-author Andrea Manica, a population geneticist at the University of Cambridge in the United Kingdom, has posted a note online explaining that incompatibility between two software packages used to compare Mota's genome with the reference human genome led the software program to simply drop certain DNA variants, with the result that all living Africans seemed to have inherited more «Eurasian» DNA than they actually did.

«Roughly speaking, the wave of West Eurasian migration back into the Horn of Africa could have been as much as 30 % of the population that already lived there — and that, to me, is mind - blowing.

By comparing the ancient genome to DNA from modern Africans, the team have been able to show that not only do East African populations today have as much as 25 % Eurasian ancestry from this event, but that African populations in all corners of the continent — from the far West to the South — have at least 5 % of their genome traceable to the Eurasian migration.

Previously, ancient Eurasian genomes had revealed three ancestral populations that contributed to contemporary Europeans in varying degrees, says Manica.

Populations of big carnivores such as brown bears, Eurasian lynx, grey wolves and wolverines are stable or increasing in a substantial part of Europe.

Globally, the swine influenza virus population is spatially separated into the North American and Eurasian lineages, although both lineages co-circulate in Asia, which imports swine from North America and Europe.

That woman was part of the first population of our species that inhabited Europe following the Eurasian expansion of Homo sapiens from Africa, and the lineage she belongs to reinforces the hypothesis of a back - migration to Africa during the Upper Palaeolithic.

First Americans descended from the meeting and admixture of at least two populations of which one is related to contemporary East Asians and the other to present - day western Eurasians.

Both models suggest some levels of genetic structure among Eurasian horse populations during the Late Pleistocene, which was not apparent in the temporal and geographic distribution of mitochondrial haplotypes (31).

By comparing the ancient genome to DNA from modern Africans, the team have been able to show that East African populations today have as much as 25 % Eurasian ancestry from this event.

DNA from 4,500 - year - old Ethiopian skull reveals a large migratory wave of West Eurasians into the Horn of Africa around 3,000 years ago had a genetic impact on modern populations across East Africa.

«Regardless of whether scenario one or two is correct, there was a single population of ancestral Native Americans, and they at least migrated to an area where they were genetically isolated from ancestral East Asians and ancestral North Eurasians,» Potter said.

Analyses of genome - wide data from 51 Eurasians from 7,000 — 45,000 years ago reveal two big changes in prehistoric human populations that are closely...

To evaluate these options, the manuscript contrasts sequence information from Egyptian and Ethiopian genomes and with a panel of Eurasians, showing that Egyptians are the modern Africa population harboring the strongest signal of that past migration and, hence, favoring a northern exit as the most likely route out of Africa.

Despite the evidence of hybridisation among Eurasian grey wolves, the wolf populations have remained genetically distinct from dogs, suggesting that such cross-breeding does not diminish distinctiveness of the wolf gene pool if it occurs at low levels.

Stefania Casagrande, Giacomo Dell «Omo, David Costantini & James Tagliavini — 2006 (6)([email protected]) Keywords: clutch size, Eurasian kestrel, genetic differentiation, laying date, microsatellites, population genetics, timing of breeding

The comparison suggests that the ancestors of Ancient Beringians and those of other Native Americans descended from a single founding population that first split from East Asians around 36,000 years ago, although gene flow with North Eurasians — possibly centered around Lake Baikal in southern Siberia — continued until about 25,000 years ago.

Studies utilising autosomal, Y chromosomal and mitochondrial DNA markers in selected Pakistani populations revealed a mixture of Western Eurasian -, South - and East Asian - specific lineages, some of which were unequivocally associated with past migrations.

Nearly 50,000 years ago, Eurasians separated from Africans, experienced a bottleneck period during which their population was very low, and then splintered into regional populations throughout Eurasia — the so - called out - of - Africa theory of human migration.

Conquered in turn by the Portuguese, Dutch and British, Malacca (or Melacca / Melaka) is known for its multicultural population, including Portuguese Eurasians and Peranakans (Chinese - Malay mix).

Its ability to consume and damage M. spicatum stems allows the weevil to be a successful biocontrol agent for Eurasian watermilfoil, curbing populations when introduced into infested lakes.