Navigation Links
Viral marker of human migration suspect

A benign virus previously used as a marker in tracing human migration may be unreliable, according to researchers at Penn State. Results of this study also suggest that some viruses might be undergoing much higher rates of evolution than previously thought.

"The most genetically divergent human populations are in Africa," said Laura Shackelton, a postdoctoral researcher at Penn State's Center for Infectious Disease Dynamics. "But, in the case of this virus, strains from European communities appear to be the most divergent."

The human polyomavirus, or JCV, is a small double-stranded DNA virus that is thought to be primarily transmitted from parents to their children. Infection is usually asymptomatic unless a person has a weak immune system, in which case the virus can cause neurological disease.

There are more than 14 subtypes of the virus, each primarily associated with different human populations such as African, Japanese, South Asian, and European. Population geneticists have assumed that the virus has been with humans since their emergence from Africa.

"Because of this presumed codivergence with human populations, JCV has been widely used as a genetic marker for human evolution and migration," explained Shackelton, whose findings appear this month (October) in the Journal of Virology.

The researchers note that while previous studies of genetic variation have observed some differences between the distribution of JCV and human populations, the extent of the differences in their evolutionary histories has never been fully tested.

Shackelton and her colleagues analyzed 333 genetic sequences of the virus and reconstructed their evolutionary history. They then compared this history to the reconstructed history of human populations, based on mitochondrial DNA.

"If the virus had been with humans since we were a single population, and we have almost strictly transmitted it to our children, you may exp
'"/>

Source:Penn State


Page: 1 2

Related biology news :

1. Viral DNA sequence a possible trigger for breast cancer
2. NYU Study Reveals How Brains Immune System Fights Viral Encephalitis
3. Viral protein influences key cell-signaling pathway
4. Viral protein helps infected T cells stick to uninfected cells
5. Viral fitness explains different resistance patterns to aids drugs
6. Viral genetic differences are possible key to HIV dementia
7. Viral hitchhiker inhibits Wolbachia bacterias ability to proliferate
8. Viral protein is an effective preventative against infection
9. Biomarkers isolated from saliva successfully predict oral and breast cancer
10. UCLA cancer researchers shake loose hidden biomarker
11. Measurement Challenges In Detecting Cancer Biomarkers
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Viral marker human migration suspect

(Date:10/15/2014)... a non-traditional biophysics textbook and it describes how life ... of discovery into biological systems and provides an understanding ... is about how our genes make proteins that control ... cells in an organism. It quantifies the principles of ... be found on both large and small scales. The ...
(Date:10/15/2014)... awarded the 44th Rosenstiel Award for Distinguished Work in ... exploring the mechanisms of genomic instability and its implications ... the second alumnus to win the Rosenstiel Award; the ... , Alt is the Charles A. Janeway Professor of ... and an investigator at the Howard Hughes Medical Institute ...
(Date:10/14/2014)... N.Y. – Scientists have sequenced the house fly genome ... one might expect from an insect that thrives in ... published Oct. 14 in the journal Genome Biology ... biology and of how flies quickly adapt to resist ... Adult house flies (Musca domestica) carry and transmit more ...
Breaking Biology News(10 mins):New book about life as seen from physics 2Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2House fly genome reveals expanded immune system 2
... March 11, 2013 BASF SE, Harvard University, the ... Massachusetts (UMass) Amherst have established a research initiative called ... A major goal of this initiative is to ... construction, and energy industries. The cooperation is initially planned ...
... in the microbiology field has challenged all previous knowledge ... came out studying this phenomenon, suggesting that there is ... Lewis, Northeastern University Distinguished Professor in the Department of ... The standard thinking at the time was that the ...
... at Earth,s northern latitudes increasingly resembles lusher latitudes to ... a 30-year record of land surface and newly improved ... and NASA scientists examined the relationship between changes in ... latitude to the Arctic Ocean. Results show temperature and ...
Cached Biology News:Renewed Harvard-BASF initiative to advance functional materials 2Study: Antibiotics are unique assassins 2Amplified greenhouse effect shifts north's growing seasons 2Amplified greenhouse effect shifts north's growing seasons 3
(Date:10/19/2014)... 2014 The Asia-Pacific Speech Analytics market ... Asia-Pacific with analysis and forecast of revenue. This market ... to $208 million by 2019, at a Compound Annual ... , Browse through the TOC of the Asia-Pacific Speech ... in-depth analysis provided. It also provides a glimpse of ...
(Date:10/19/2014)... The report "Unmanned Ground Vehicle Market ... Payload, Type & by Geography - Forecasts & ... ground vehicle market into various sub segments with ... The report also identifies the factors driving this ... with the adoption trends. , The unmanned ground ...
(Date:10/18/2014)... The Asia-Pacific Bio-based Advanced Phase Change Materials ... phase change material market in Asia-Pacific with analysis ... TOC of the Asia-Pacific Bio-based Advanced Phase Change ... the in-depth analysis provided. This also provides a ... advanced phase change material market, and is supported ...
(Date:10/18/2014)... The Asia-Pacific hardware encryption display market report defines ... and forecast of revenue. This market was valued $5,154.0 ... million by 2018, at a CAGR of 58.4% from ... the Asia-Pacific hardware encryption market report, to get an ... a glimpse of the segmentation of the market, and ...
Breaking Biology Technology:The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 2Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 5The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 4The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 3
... Alfacell Corporation,(NASDAQ: ACEL ) today announced that it ... on June 25, 2008, that states that,for the last ... company,s,listed securities has been below $35 million as required ... Rule 4310(c)(3)(B)., The June 25, 2008, letter indicates ...
... - Edmonton will be home to the,world,s first ... waste. The City has signed a 25-year agreement ... a leading biofuels,technology company., The $70 million ... biofuels per year and reduce Alberta,s carbon dioxide ...
... (NYSE: BSX ) will webcast its conference call ... 2008 on Tuesday,July 22, at 8:30 a.m. ET., ... and Chief Executive,Officer, and Sam Leno, Executive Vice President ... replay of this call will be available at, http://www.bostonscientific.com ...
Cached Biology Technology:Alfacell Receives NASDAQ Non-Compliance Notification 2Alfacell Receives NASDAQ Non-Compliance Notification 3Edmonton to be site of world's first industrial scale municipal waste-to-ethanol facility 2Edmonton to be site of world's first industrial scale municipal waste-to-ethanol facility 3Edmonton to be site of world's first industrial scale municipal waste-to-ethanol facility 4Edmonton to be site of world's first industrial scale municipal waste-to-ethanol facility 5Boston Scientific To Webcast Conference Call Discussing Second Quarter Financial Results 2
No-Weigh Dithiothreitol (DTT) ,7.7 mg DTT/Tube x 48 tubes...
... LAS-3000 imaging system combines new CCD ... interface, providing significantly improved system sensitivity ... The LAS-3000 provides significantly improved system ... applications including: fluorescence, chemifluorescence, chemiluminescence, and ...
... Science LAS-3000 imaging system combines new ... user interface, providing significantly improved system ... modularities. The system is especially dedicated ... standard system for Western blotting applications.,Fuiji's ...
This pump accomodates StemSep ; pump feed columns of the following sizes : 0.3in., 0.5in., 0.6in., and 1.0in.....
Biology Products: