Navigation Links
Of lice and men (and chimps): Study tracks pace of molecular evolution
Date:1/7/2014

CHAMPAIGN, Ill. A new study compares the relative rate of molecular evolution between humans and chimps with that of their lice. The researchers wanted to know whether evolution marches on at a steady pace in all creatures or if subtle changes in genes substitutions of individual letters of the genetic code occur more rapidly in some groups than in others.

A report of the study appears in the Proceedings of the Royal Society B.

The team chose its study subjects because humans, chimps and their lice share a common historical fate: When the ancestors of humans and chimps went their separate ways, evolutionarily speaking, so did their lice.

"Humans are chimps' closest relatives and chimps are humans' closest relatives and their lice are each others' closest relatives," said study leader Kevin Johnson, an ornithologist with the Illinois Natural History Survey at the University of Illinois. "Once the hosts were no longer in contact with each other, the parasites were not in contact with each other because they spend their entire life cycle on their hosts."

This fact, a mutual divergence that began at the same point in time (roughly 5 million to 6 million years ago) allowed Johnson and his colleagues to determine whether molecular evolution occurs faster in primates or in their parasites.

Previous studies had looked at the rate of molecular changes between parasites and their hosts, but most focused on single genes in the mitochondria, tiny energy-generating structures outside the nucleus of the cell that are easier to study. The new analysis is the first to look at the pace of molecular change across the genomes of different groups. It compared a total of 1,534 genes shared by the primates and their parasites. To do this, the team had to first assemble a rough sequence o
'/>"/>

Contact: Diana Yates
diya@illinois.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Law that regulates shark fishery is too liberal: UBC study
3. New study will help protect vulnerable birds from impacts of climate change
4. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
5. BYU study: Using a gun in bear encounters doesnt make you safer
6. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
7. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
8. Crystal structure of archael chromatin clarified in new study
9. EU-funded study underlines importance of Congo Basin for global climate and biodiversity
10. University of Houston study shows BP oil spill hurt marshes, but recovery possible
11. Study demonstrates cells can acquire new functions through transcriptional regulatory network
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Of lice and men (and chimps): Study tracks pace of molecular evolution
(Date:7/22/2014)... scientific discovery showed that mutations in prickle genes ... disorder characterized by repeated seizures over time. However, ... unknown. , A new University of Iowa study, ... of the National Academy of Sciences , reveals ... UI researchers have identified the basic cellular mechanism ...
(Date:7/22/2014)... thawing might not be good for the average steak, ... as they prepare to survive Alaska,s winter cold. , ... outside than a steak does in your freezer and ... in better shape than the steak," said Don Larson, ... on a recent paper demonstrating that freeze tolerance in ...
(Date:7/22/2014)... new study that examined the survival rates of ... in commercial longline fishing operations found large differences ... thresher, dusky, and scalloped hammerhead being the most,vulnerable. ... of Miami (UM) Rosenstiel School of,Marine and Atmospheric ... and Policy, provides,new information to consider for future ...
Breaking Biology News(10 mins):UI study finds potential genetic link between epilepsy and neurodegenerative disorders 2Alaska frogs reach record lows in extreme temperature survival 2Alaska frogs reach record lows in extreme temperature survival 3New study reveals vulnerability of sharks as collateral damage in commercial fishing 2
... National Lung Screening Trial (NLST) investigators also conclude that ... low-dose computed tomography (LDCT) versus chest X-ray (CXR) screening ... at experienced screening centers in the United States. ... patients about the benefits and risks of LDCT lung ...
... 2013)The omega 3 fatty acids in fish oil have ... so that the American Heart Association currently recommends eating ... fatty varieties rich in omega 3s. However, the mechanism ... a new study, scientists led by Jason R. Carter ...
... Legionella pneumophila bacteria is responsible for legionellosis, an ... to infect us, this pathogen has developed a complex ... in our cells, thus avoiding these acting against the ... research centre, CIC bioGUNE, in which teams from the ...
Cached Biology News:NLST: CT detects twice as many lung cancers as X-ray at initial screening exam 2NLST: CT detects twice as many lung cancers as X-ray at initial screening exam 3Fish oil may help the heart beat mental stress 2Mechanism discovered which aids Legionella to camouflage itself in the organism 2
(Date:7/23/2014)... - BioAmber Inc. (NYSE: BIOA ), ... that the underwriters of its common stock offering ... additional 420,000 shares of common stock at the ... underwriting discounts and commissions, in connection with its ... of common stock, bringing the expected net proceeds ...
(Date:7/23/2014)... China Cord Blood Corporation (NYSE: CO ) ... of cord blood collection, laboratory testing, hematopoietic stem cell processing, and ... healthcare company catering to the mother and child segment, today announced ... the PRC, Singapore , Hong Kong ... , the Philippines and Malaysia ...
(Date:7/23/2014)... 2014 Astra Nova Training ... consultancy and pharma training services, and the ... , a non-profit integrating the expertise and investments ... a global system for clinical trials, are pleased ... the expertise of industry professionals through improved and ...
(Date:7/22/2014)... metal nanoparticles in water with ultrasound and they,ll spin ... No one yet knows exactly. But researchers at the ... their speedand it,s fast. At up to 150,000 revolutions ... any nanoscale object submerged in liquid ever reported. , ... the possibility that they could be used not only ...
Breaking Biology Technology:BioAmber announces exercise in full of underwriters' option in connection with previously priced follow-on offering 2BioAmber announces exercise in full of underwriters' option in connection with previously priced follow-on offering 3China Cord Blood Corporation and Cordlife Group Limited Announce Collaboration to Aid Asia-based Patients with Cord Blood Stem Cell Therapy 2China Cord Blood Corporation and Cordlife Group Limited Announce Collaboration to Aid Asia-based Patients with Cord Blood Stem Cell Therapy 3China Cord Blood Corporation and Cordlife Group Limited Announce Collaboration to Aid Asia-based Patients with Cord Blood Stem Cell Therapy 4Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 2Astra Nova and ACRES Partner on Quality and Access of Training for Research Professionals 3NIST shows ultrasonically propelled nanorods spin dizzyingly fast 2
... Mass., July 27, 2011 SomaLogic, Inc. ... today that they have entered into an ... specific SOMAmers as critical and unique reagents ... acid amplification and polymerase chain reaction (PCR) ...
... DIEGO, July 27, 2011 /PRNewswire/ -- bioTheranostics, ... to support targeted disease management, announced today study results ... of Molecular Diagnostics related to the clinical validity ... molecular classification test to aid in the determination of ...
... MATTHEWS, N.C., July 27, 2011 CEM Corporation ... continues to see strong success with its microwave ... has seen significant growth versus the prior year in ... pace to easily sell a record number of systems. ...
Cached Biology Technology:Agreement Between SomaLogic and New England Biolabs Enables the Use of SOMAmer Technology for the Optimization of Multiple PCR Products 2New Study Reports CancerTYPE ID Expands Tumor Type Coverage and Demonstrates Clinical Utility 2New Study Reports CancerTYPE ID Expands Tumor Type Coverage and Demonstrates Clinical Utility 3Record Year for CEM's Peptide Synthesis Business 2Record Year for CEM's Peptide Synthesis Business 3
Rat integrin a6b1, mainly associated with epithelial cells. Does not react with rat fibroblasts....
Rabbit polyclonal to MDM2 (phospho S185) ( Abpromise for all tested applications). entrezGeneID: 4193 SwissProtID: Q00987...
Anti-ADAM-12 (Meltrin Alpha); carboxy terminal end; rabbit host...
Chaps Cell Extract Buffer can be used to lyse cells under nondenaturing conditions and is recommendedfor the preparation of cell lysates to be used with our caspase signaling pathway antibodies...
Biology Products: