HOME >> BIOLOGY >> NEWS
Toward more effective paleolgenetic analysis

DNA preserved in bones undergoing fossilization deteriorates up to 50 times faster when stored in a museum than when the bones are buried in the ground. This has just been shown by a paleogenetics team led by Eva-Maria Geigl (Institut Jacques Mono / CNRS Paris). This study, which was published in the Proceedings of the US National Academy of Sciences 8 January 2007, shows that in order to improve the quality of paleogenetic analyses, archeological and paleontological remains should be treated like biological samples both during and after excavation. The findings show the need for a new methodology for the excavation, treatment and preservation of fossils. They also open up new prospects for paleogenetic research into freshly excavated fossils.

In paleogenetic research, it is essential to have well-preserved archeological material in order to obtain reliable results. At present, such research is only too rarely the result of close collaboration between the various disciplines involved: molecular biologists, archeologists, paleontologists and curators. Moreover, biologists mostly carry out such studies on samples stored in collections or in museums. However, there was no reason to suppose that the treatment carried out by fieldworkers (archeologists, paleontologists and curators), as well as storage conditions, were compatible with a paleogenetic approach. In fact, such analyses were often subject to a high failure rate, due partly to a lack of any ancient DNA detected by PCR , or to contamination by modern DNA.

An extensive study of around 250 fossil bones from 600 to 50 000 year old herbivores was carried out thanks to international cooperation between the Institut Jacques Monod at CNRS, the Museum of Natural Sciences in Madrid and a number of European, Turkish and Japanese paleontologists and archeologists. The work showed that mitochondrial DNA from freshly excavated, untreated fossil bones was amplified with a success rate of 46%. How
'"/>

Contact: Monica McCarthy
monica.mccarthy@cnrs-dir.fr
33-144-965-191
CNRS
17-Jan-2007


Page: 1 2 3

Related biology news :

1. Toward improved forms of a time-tested cholesterol-fighter
2. Dengue and other hemorrhagic fevers: Towards a first potential treatment
3. Towards predicting late-stage radiation toxicity
4. Toward a less expensive, more convenient treatment of Gauchers disease
5. Towards the mechanism of cell respiration
6. Towards a unified model of transcription termination
7. Towards a cheap and easy way to monitor HIV/AIDS
8. Towards targeted lung cancer treatment
9. Toward a better understanding of taste and smell impairments
10. Smokeless tobacco more effective than cigarettes for delivering dangerous carcinogens into the body
11. Developing a more effective vaccine for tuberculosis

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


(Date:1/11/2017)... , Jan. 11, 2017 Intoxalock, a ... with the release of its patent-pending calibration device. With ... reliably perform calibrations, securely upload data logs and process ... the customer. "Fighting drunk driving through the ... the public at large, but also for the customer ...
(Date:1/6/2017)... , Jan. 5, 2017  SomaLogic announced ... "Digital Life Alliance" established by iCarbonX, the ... to build a "Global Digital Health Ecosystem that ... a combination of individual,s biological, behavioral and psychological ... agreement between the companies, SomaLogic will provide proteomics ...
(Date:1/4/2017)... , Jan. 4, 2017  CES 2017 – ... biometric sensor technology, today announced the launch of ... sensor systems, the highly-accurate biometric sensor modules that ... biometric technology, experience and expertise. The two new ... designed specifically for hearables, and Benchmark BW2.0, a ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... 2017  ArmaGen, Inc., today announced that it ... chief executive officer, as well as a member ... ArmaGen more than 17 years of executive management ... biotherapeutics and pharmaceuticals. "Mathias is ... and skillset necessary to lead ArmaGen to its ...
(Date:1/19/2017)... Minneapolis, Minnesota (PRWEB) , ... January 19, 2017 ... ... contract research organization with services spanning the full spectrum of drug and device ... clinical research services to pharma/device companies and clinicians, today announced Verified Clinical ...
(Date:1/18/2017)... ... 18, 2017 , ... Opal Kelly, a leading producer of ... announced the ZEM5310 USB 3.0 FPGA Module, combining a SuperSpeed USB 3.0 interface ... factor suitable for prototyping, testing, and production-ready integration. The ZEM5310 USB interface delivers ...
(Date:1/18/2017)... , ... January 18, 2017 , ... ... Clinical Ops Executives 2017 in its continued commitment to the advancement of the ... to discuss current issues related to clinical trial planning and management. , ...
Breaking Biology Technology:
Cached News: