HOME >> BIOLOGY >> NEWS
Ancient Etruscans unlikely ancestors of modern Tuscans, statistical testing reveals

with the simple inheritance direct lineage model.''

The Stanford researchers used recently developed software called ''Serial SimCoal'' to simulate genetic data based on different population scenarios, such as small (25,000 females) or large (300,000 females) populations of constant size, an expanding population, and scenarios involving migration and selection. Despite the range of scenarios created, the scientists could not find a match between the observed archaeological data and the simulations.

Christian Anderson, a former Stanford undergraduate, developed the software while working with Elizabeth Hadly, associate professor of biological sciences. She has used the approach to analyze the ancient DNA of small mammals. ''I believe it's the first time it has been used to analyze ancient human DNA,'' Mountain said. ''It's computationally intensive and requires DNA data from many individuals.''

The finding is important because it questions the common assumption that residents of a particular place are descendants of its earlier inhabitants, Mountain said. ''Also, it raises a number of other questions-what happened to the Etruscans?'' she said. ''It's stimulating for archaeologists and other social scientists to look into what might have been the causes of this decline in the population. It may have been quite abrupt. Mostly, it's a matter of guessing.''

According to Mountain, the field of anthropological genetics is replete with such educated guesses. ''There's so much storytelling that goes on in our field where people will see a particular genetic sequence and go, 'Aha! That means these people moved here and there,''' she said. ''I tend to be fairly skeptical and say, 'That's a nice story.' Before [this study] you could tell a number of stories consistent with the data. What we've done is narrowed down these stories, which for me is a really great leap forward.''


'"/>

Contact: Lisa Trei
lisatrei@stanford.edu
650-725-0224
Stanford University
25-May-2006


Page: 1 2 3

Related biology news :

1. Ancient retrovirus sheds light on modern pandemic
2. Ancient Etruscans were immigrants from Anatolia, or what is now Turkey
3. Ancient DNA traces the woolly mammoths disappearance
4. Ancient amphibians evolved a bite before migrating to dry land
5. Ancient T. rex and mastodon protein fragments discovered, sequenced
6. Ancient coral reef tells the history of Kenyas soil erosion
7. Ancient genes used to produce salt-tolerant wheat
8. Ancient climate change may portend toasty future
9. Ancient ape ruled out of mans ancestral line
10. Ancient predator had strongest bite of any fish, rivaling bite of large alligators and T. rex
11. Ancient birds flew on all-fours

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/13/2016)... CHICAGO , April 13, 2016  IMPOWER physicians ... are setting a new clinical standard in telehealth ... By leveraging the higi platform, IMPOWER patients can ... weight, pulse and body mass index, and, when they ... quick and convenient visit to a local retail location ...
(Date:3/29/2016)... 29, 2016 LegacyXChange, Inc. (OTC: ... and SelectaDNA/CSI Protect are pleased to announce our successful ... a variety of writing instruments, ensuring athletes signatures against ... collectibles from athletes on LegacyXChange will be assured of ... DNA. Bill Bollander , CEO states, ...
(Date:3/22/2016)... PROVO and SANDY, Utah ... (NSO), which operates the highest sample volume laboratory in ... Tute Genomics and UNIConnect, leaders in clinical sequencing informatics ... the launch of a project to establish the informatics ... NSO has been contracted by the ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... ... 27, 2016 , ... Cambridge Semantics, the leading provider of Smart ... it has been named to The Silicon Review’s “20 Fastest Growing Big Data Companies ... Semantics serves the needs of end users facing some of the most complex data ...
(Date:4/27/2016)... ... 2016 , ... The Pittcon Organizing Committee is pleased to announce that Charles ... member of Committee since 1987. Since then, he has served in a number of ... chairman for both the program and exposition committees. In his professional career, Dr. Gardner ...
(Date:4/27/2016)... April 27, 2016 NanoStruck ... (OTCPink: NSKQB) ( Frankfurt : 8NSK) ... Pressemitteilung vom 13. August 2015 die Genehmigung von ... um zusätzliche 200.000.000 Einheiten auf 400.000.000 Einheiten zu ... bringen. Davon wurden 157.900.000 Einheiten mit dem ersten ...
(Date:4/27/2016)... ... April 27, 2016 , ... The Board of Directors of ... John Tilton as Chief Commercial Officer.  Mr. Tilton joined Biohaven from Alexion Pharmaceuticals, ... leaders responsible for the commercialization of multiple orphan drug indications. Mr. Tilton ...
Breaking Biology Technology:
Cached News: