Navigation Links
Woolly-mammoth gene study changes extinction theory
Date:6/11/2008

y, Russia, Spain, Sweden, the United Kingdom, and the United States. The team includes experts in the fields of genome evolution, ancient DNA, and mammoth paleontology, as well as curators from various natural-history museums.

Another important finding for understanding the extinction processes is that the individuals in each of the two woolly-mammoth groups were related very closely to one another. "This low genetic divergence is surprising because the woolly mammoth had an extraordinarily wide range: from Western Europe, to the Bering Strait in Siberia, to Northern America," Miller said. "The low genetic divergence of mammoth, which we discovered, may have degraded the biological fitness of these animals in a time of changing environments and other challenges."

Our study suggests a genetic divergence of the two woolly-mammoth groups more than 1-million years ago, which is one quarter the genetic distance that separates Indian and African elephants and woolly mammoths," Miller said. The research indicates that the diversity of the two woolly-mammoth populations was as low centuries ago as it is now in the very small populations of Asian elephants living in southern India. "The low genetic divergence of the elephants in southern Indian has been suggested as contributing to the problems of maintaining this group as a thriving population," Schuster said. Intriguingly, the mitochondrial genomes revealed by the researchers are several times more complete than those known for the modern Indian and African Elephants combined.

Whereas studies before this research had analyzed only short segments of the DNA of extinct species, this new study generated and compared 18 complete genomes of the extinct woolly mammoth using mitochondrial DNA, an important material for studying ancient genes. This achievement is based on an earlier discovery of the team led by Miller, Schuster, and co-author Thomas Gilbert, which was published last ye
'/>"/>

Contact: Barbara K. Kennedy
science@psu.edu
814-863-4682
Penn State
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. From Canada to the Caribbean: Tree leaves control their own temperature, Penn study reveals
2. Study of guanacos launched in Chile
3. New study reveals large scale conservation essential
4. Study finds Chinese food good for your heart
5. Study identifies brain pathway that shuts down seizures
6. NOAA study shows eastern tropical pacific ocean dolphin populations improving
7. RAND study finds increase in piracy and terrorism at sea
8. Moores UCSD Cancer Center study links vitamin D, type 1 diabetes
9. UNH receives $380,000 grant to study organic dairy as closed ecosystem
10. Study finds healthy intestinal bacteria within chicken eggs
11. Study findings show infection control intervention helps keep kids in school
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Woolly-mammoth gene study changes extinction theory
(Date:4/23/2014)... manufacturers are turning away from using triclosan as an ... health concerns. And now scientists are reporting new evidence ... in the ACS journal Chemical Research in Toxicology ... substance called octylphenol, promoted the growth of human breast ... in mice. , Kyung-Chul Choi and colleagues note that ...
(Date:4/23/2014)... April 2013 EMBO today announced Sophie Martin of ... the 2014 EMBO Gold Medal. The award acknowledges her ... organization and development of the cell. , Martin has ... cellular polarity, in particular the way in which the ... cell division. In the last 11 years, she has ...
(Date:4/23/2014)... is the first cause of dementia and affects some ... has yet been found. One of the reasons for ... mechanisms which cause alterations in nerve transmissions and the ... disease., Researchers from the Institute of Neuroscience at the ... involved in memory consolidation and were able to develop ...
Breaking Biology News(10 mins):In lab tests, the antimicrobial ingredient triclosan spurs growth of breast cancer cells 2EMBO Gold Medal 2014 awarded to Sophie Martin 2Loss of memory in Alzheimer's mice models reversed through gene therapy 2
... School of Medicine have found that new disease pathways ... 1 Gaucher disease, a rare genetic disorder in which ... liver/spleen enlargement, osteoporosis, bone pain, and increased risk of ... could lead to less expensive and more effective ways ...
... the cure for a fungus and parasite that affects millions ... of Missouri Chemistry Professor John Tanner would be the forensic ... model that could eventually solve the crime. Tanner, who also ... joined forces with Pablo Sobrado, an assistant professor of biochemistry ...
... CHAMPAIGN, Ill. University of Illinois chemists have ... in shoe bombs. It could lead to inexpensive, easy-to-use ... elsewhere. Triacetone triperoxide (TATP) is a high-powered explosive ... bombing attempts. TATP is easy to prepare from readily ...
Cached Biology News:Cheaper, more effective treatment of type 1 Gaucher disease possible 2X-ray diffraction may play key role in stopping 'kissing bug,' fungus 2Sniffing out shoe bombs: A new and simple sensor for explosive chemicals 2
(Date:1/14/2014)... January 14, 2014 Date: Friday, April 11, ... Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... organization solely dedicated to finding a cure for hepatitis B ... will host its annual Crystal Ball on Friday, April 11 ...
(Date:1/14/2014)... Calif. , Jan. 14, 2014 As pet owners drew ... doubt many of them wrote: "Take better care of my furry ... even designer clothes and top-brand carrying cases to take the little ... parents might also feel compelled to buy some pricey toys at ...
(Date:1/14/2014)... January 14, 2014 iLab Solutions, the leader ... the new Director of Product Strategy. In this role, Michelle ... iLab sub-teams to guide in the development of iLab products. ... the maximum possible benefit to the scientific community by offering ...
(Date:1/14/2014)... ®, provider of RapidResponse ®, a cloud-based supply chain ... S&OP ) service, is proud to be a gold sponsor ... at the Hilton San Diego Bayfront, January 30 – 31, ... , Director of Supply Chain at Amgen, as she presents ...
Breaking Biology Technology:Hepatitis B Foundation to Host Annual Crystal Ball Gala 2New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2iLab Solutions Announces Michelle Detwiler as the New Director of Product Strategy 2Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2
... 13 Neurocrine Biosciences,Inc. (Nasdaq: NBIX ) announced ... Diego campus, as a part of its restructuring program,to ... expenses after the setback on indiplon. Following these reductions,Neurocrine ... great disappointment that we have to make this difficult,decision ...
... ANTONY, GRENOBLE France, December 13 ,STALLERGENES S.A and ... for developing and pharmaceutically producing mites,recombinant allergens(1)., ... Allergens",innovation programme for a recombinant protein treatment for ... is,made up of the recombinant allergens Der p ...
... COLUMBIA, Md., Dec. 13 Martek Biosciences,Corporation announced ... DHA and,ARA license and supply agreement for infant ... Pharmaceutical. Under the terms of the,agreement, Martek will ... IlDong,Foodis infant formula products in South Korea., ...
Cached Biology Technology:Neurocrine Announces Work Force Restructuring 2Neurocrine Announces Work Force Restructuring 3STALLERGENES and Protein' eXpert Enter Into a Partnership for Producing Mites Recombinant Allergens 2STALLERGENES and Protein' eXpert Enter Into a Partnership for Producing Mites Recombinant Allergens 3Martek Signs DHA/ARA License and Supply Agreement With IlDong Foodis for Infant Formula in South Korea 2Martek Signs DHA/ARA License and Supply Agreement With IlDong Foodis for Infant Formula in South Korea 3
Opticon continuous fluorescence detector; includes optical base, analysis software, computer and monitor (this is an accessory for the DNA Engine thermal cyclers which must be ordered seperately)...
... Simultaneously perform 96 assays on one plate. ... microarray plate with 96 (7mm x 7mm) ... gene expression, or screening analysis studies. Unlike ... fit gasket, eliminating the presence of contaminating ...
... Hyb-Seal slide chambers are vapor-tight adhesive chambers ... adhesive chambers are affixed over a sample on ... one of two ports, and the ports are ... be removed and replaced to allow exchange of ...
... of Use : GeneTraffic is built to ... biological research. GeneTraffic provides visual and computational ... data prior to analysis. , Data ... projects using the MIAME (Minimum Information About ...
Biology Products: