Navigation Links
A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

era, an aphid mutualist. Taken together, these results indicate that genome stasis may be a general feature of insect mutualists.

Another important feature of B. pennsylvanicus tested by the researchers was the rate of protein evolution, as measured by amino acid changes, since the divergence of B. pennsylvanicus from their free-living ancestors. The researchers showed that the amino acid sequences of Blochmannia have diverged approximately 50 times more quickly than proteins in free-living bacteria. According to the scientists, endosymbiont proteins may be more tolerant of amino acid changes when they first become associated with their hosts, and this may account for the rapid rates of protein evolution observed.

In addition, protein sequences of the two Blochmannia species exhibited different rates of evolution; divergence rates were approximately two times faster in B. floridanus than in B. pennsylvanicus. The authors suggested that these lineage-specific differences may reflect life history differences of their respective ant hosts.

When the observations of the current study are coupled with results from previous studies, a new model for bacterial genome evolution in the context of a host-symbiont relationship emerges. As Wernegreen and her colleagues explain in their Genome Research article, long-term genome stasis is a striking characteristic of insect mutualists, and it may severely constrain the evolutionary potential of these symbiotic microbes.

However, whether rapid rates of protein evolution are important for the adaptation of insect mutualists remains unclear. While the current study documents rapid changes in amino acid sequence through evolutionary time, some studies suggest that most changes in proteins are slightly harmful to the bacterium and by extension, to its host.

"Overall, the picture emerging is one of genome deterioration, with the loss of many gene functions, and extreme genome stability," says Werne
'"/>

Source:Cold Spring Harbor Laboratory


Page: 1 2 3 4

Related biology news :

1. Breathing easy: When it comes to oxygen, a bugs life is full of it
2. The shape of life: research sheds light on how cells take shape
3. Selecting life: Scientists find new way to search for origin of life
4. Lighting up life: Cold Spring Harbor Protocols presents tips for creating glowing plants
5. Enzyme shown to help protect genomic stability
6. New comparative toxicogenomics database
7. Scientists document complex genomic events leading to the birth of new genes
8. Study of genomic DNA leads to new advances in cancer diagnostics
9. Measuring the impact of post-genomics on Mediterranean populations
10. Genrate: a generative model that finds and scores new genes and exons in genomic microarray data
11. PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information
Post Your Comments:
(Date:6/24/2015)... MARTIGNY, Switzerland , June 24, 2015 /PRNewswire/ ... strategic partnership with emerging biometric password solution one ... http://photos.prnewswire.com/prnh/20150623/225014LOGO one face in, ... offers a ground-breaking and affordable multifactor-authentication biometric answer ... speaker recognition technology, provided in partnership with KeyLemon, ...
(Date:6/23/2015)... Research and Markets( ... "Body-Worn Temperature Sensors Market - Global Industry ... - 2020" report to their offering. ... global body-worn temperature sensors market. The global body-worn ... basis of types, care setting, patient demographic, applications ...
(Date:6/23/2015)... , June 23, 2015  Crossmatch™, ... and authentication solutions, today announced enhanced functionality of ... authentication solution.  The enhancements build on the ... the DigitalPersona Altus platform and provide expanded ... In today,s environment of increasing ...
Breaking Biology News(10 mins):KeyLemon Announces Partnership With Biometric Password Solution onefacein 2Body-Worn Temperature Sensors Market - Global Industry Analysis 2Crossmatch Releases Enhanced DigitalPersona Altus Advanced Authentication Functionality 2
... is George L. Drusano, M.D., Institute for Therapeutic ... application of pharmacokinetic and pharmacodynamic modeling to antiviral ... Michael Dudley, Rempex Pharmaceuticals, "Drusano and his colleagues ... and then validate dosing regimens to maximize the ...
... Duke University biomedical engineers and genome researchers have developed ... patients show symptoms. The approach was demonstrated in ... for placement on a chip, which could provide fast, ... device based on this chip also could be made ...
... York University (NYU-Poly) and NYU have received a grant ... a novel approach to understanding the genetic underpinnings of ... Montclare, associate professor of chemical and molecular engineering at ... NYU, have teamed to study the functioning of one ...
Cached Biology News:The American Society for Microbiology honors George L. Drusano 2Light and nanoprobes detect early signs of infection 2National Institutes of Health to fund research probing proteins linked to cancer, diabetes 2
(Date:7/6/2015)... Mass. (PRWEB) , ... July 06, 2015 , ... ... of simpler and cheaper molecular diagnostic tests are key drivers of the global ... growth of personalized medicine and the introduction of new companion diagnostic tests will ...
(Date:7/5/2015)... ... ... For many years, metal-on-quartz filters were the industry standard for the calibration ... Cary 4000-7000, a Perkin Elmer 800-1100 or a Shimadzu 3600-3700, these filters would work ... their SRM-2031 series going back for many years. Unfortunately, these standards remained unusable for ...
(Date:7/3/2015)... July 3, 2015 ... september 2015 på  http://www.openinnovationinscience.at till det ... Science" som hålls i Wien ... undersökning med internationella forskare och vetenskapsmän som ... hälsovetenskapens två största utmaningar bristen på incitament ...
(Date:7/2/2015)... 2, 2015 College of DuPage students ... gaining invaluable real-world experiences while serving biophysics internships at ... The students will be working as a part ... at IIT. The internship came about from a ... Physics; Dr. Kathy Finan , Biology; and Dr. ...
Breaking Biology Technology:Demand for Personalized Medicine, Innovative Molecular Diagnostic Tests Spurring Big Growth, According to BCC Research 2Demand for Personalized Medicine, Innovative Molecular Diagnostic Tests Spurring Big Growth, According to BCC Research 3FireflySci Simplifies the Calibration of UV Spectrophotometers with FUV Photometric Accuracy Standards 2FireflySci Simplifies the Calibration of UV Spectrophotometers with FUV Photometric Accuracy Standards 3Lansering av världens första program för öppen innovation för att utbilda forskare 2Lansering av världens första program för öppen innovation för att utbilda forskare 3COD Students Participate in Prestigious Summer Internships 2
... 8 Brinks Hofer Gilson & Lione, one ... United States, is pleased to,announce that William F. ... Group, one of the largest nanotechnology practices in ... 10 intellectual property lawyers,influencing the field of Nanotechnology ...
... Inverness Medical,Innovations, Inc. (Amex: IMA ), a ... solutions, is featuring its,new TB diagnostic test, the ... 2008)., The test, which was introduced to ... needed aid in the diagnosis of Mycobacterium,tuberculosis (TB) ...
... MGT Capital Investments,Inc. (Amex: MGT ), ... Technology ("HCIT") sector, today reported financial results,for the ... an update on,strategic milestones., Tim Paterson-Brown, MGT ... half of 2008 reflect continued progress in the ...
Cached Biology Technology:William F. Prendergast Named One of the Top IP Lawyers in Nanotechnology 2Inverness Medical Innovations Features Innovative TB Diagnostic - Clearview(R) TB ELISA at AIDS 2008 2MGT Capital Investments Reports Second Quarter 2008 Financial Results and Provides Update on Recent Developments 2MGT Capital Investments Reports Second Quarter 2008 Financial Results and Provides Update on Recent Developments 3MGT Capital Investments Reports Second Quarter 2008 Financial Results and Provides Update on Recent Developments 4MGT Capital Investments Reports Second Quarter 2008 Financial Results and Provides Update on Recent Developments 5
X-Gal (5-Bromo-4-Chloro-3-Indoyl-beta -D-Galactopyranoside)...
APG5 autophagy 5-like (S. cerevisiae)...
Human Jagged 2 Biotinylated Affinity Purified PAb...
Mouse/Rat WNK1 Affinity Purified Polyclonal Ab...
Biology Products: