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:
TAG: Toward more effective paleolgenetic analysis

(Date:8/4/2015)... ) today reported financial and operating results for the second quarter ... quarter contract revenue of $ 85.2 million, a ... of 26 % , Second quarter adjusted ... royalties in the current quarter , Operating cash ... to present another strong financial quarter, with all our divisions achieving ...
(Date:7/31/2015)... -- Den 10. internationale konference om Genomik (ICG-10, ... 25. oktober i Shenzhen , Kina. ... år. Siden starten i 2006 er ICB blevet en ... er en af de mest dynamiske, entusiastiske og sjove ... gennembrud og fremskridt inden for ,omik,-forskning, som yderligere vil ...
(Date:7/31/2015)... SHENZHEN, China , 31 de julho de 2015 ... Genômica (ICG-10, www.icg-10.org ) será realizada pela BGI de ... China . A conferência está ... inauguração em 2006, a ICG se tornou uma das ... e um dos encontros científicos mais dinâmicos, entusiastas e ...
Breaking Biology News(10 mins):AMRI Announces Second Quarter 2015 Results 2AMRI Announces Second Quarter 2015 Results 3AMRI Announces Second Quarter 2015 Results 4AMRI Announces Second Quarter 2015 Results 5AMRI Announces Second Quarter 2015 Results 6AMRI Announces Second Quarter 2015 Results 7AMRI Announces Second Quarter 2015 Results 8AMRI Announces Second Quarter 2015 Results 9AMRI Announces Second Quarter 2015 Results 10AMRI Announces Second Quarter 2015 Results 11AMRI Announces Second Quarter 2015 Results 12AMRI Announces Second Quarter 2015 Results 13AMRI Announces Second Quarter 2015 Results 14AMRI Announces Second Quarter 2015 Results 15AMRI Announces Second Quarter 2015 Results 16AMRI Announces Second Quarter 2015 Results 17AMRI Announces Second Quarter 2015 Results 18AMRI Announces Second Quarter 2015 Results 19AMRI Announces Second Quarter 2015 Results 20AMRI Announces Second Quarter 2015 Results 21AMRI Announces Second Quarter 2015 Results 22AMRI Announces Second Quarter 2015 Results 23AMRI Announces Second Quarter 2015 Results 24Den 10. internationale konference om Genomics (ICG-10) åbner i oktober 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3
(Date:8/31/2015)... -- US-Australian drug discovery company, Novogen Limited (ASX: NRT; ... scientific review has identified high value opportunities for ... patient need. Novogen is moving as quickly as ... entering into Phase 1 clinical trials with our ... Officer, Iain Ross , said that following ...
(Date:8/31/2015)... ... August 31, 2015 , ... Regulatory agencies have ... drug development approval process. Thus, innovator companies must understand what will be needed ... Chicago-based CMO, has been hosting multiple educational panels and seminars for experts to ...
(Date:8/28/2015)... Research and Markets ( http://www.researchandmarkets.com/research/zsgg5n/global_and_usa ) ... USA BioSimilar Market Analysis to 2021" report to ... market will be initiated in September as Sandoz launches ... global market react? Will biosimilars explode into the biologics ... US economy up to $250 billion within the next ...
(Date:8/28/2015)... ... 2015 , ... Riordan-McKenna Institute founders, stem cell ... the use of sterile, dehydrated amniotic tissue AlphaPATCH™ developed by Amniotic Therapies ... knee wound. , The case involved a 78-year-old male, who presented with a ...
Breaking Biology Technology:Novogen Announces The Outcome Of A Comprehensive Science Review 2Novogen Announces The Outcome Of A Comprehensive Science Review 3Novogen Announces The Outcome Of A Comprehensive Science Review 4Novogen Announces The Outcome Of A Comprehensive Science Review 5Novogen Announces The Outcome Of A Comprehensive Science Review 6Regis Shares Expert Advice on Impurities in Drug Development 2Regis Shares Expert Advice on Impurities in Drug Development 3Global & USA BioSimilar Market Analysis Report 2015-2021 2Global & USA BioSimilar Market Analysis Report 2015-2021 3Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 2Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 3Dallas-Fort Worth Stem Cell Researchers Use Amniotic Tissue To Successfully Treat Non-Healing Surgical Wound 4
Cached News: