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

The recent surge in the number of microbial genome sequences available to the scientific community is allowing researchers to address interesting ecological questions and to observe how various genomic, evolutionary, and ecological forces interact to define an organism's role in the environment. Today, Dr. Jennifer Wernegreen's group from the Marine Biological Laboratory presents new data that support a fascinating model for genome evolution in bacteria that live inside insects.

The scientists show that symbiotic bacteria have undergone exceptionally fast rates of protein evolution despite having precisely maintained their genomic architecture over long periods of evolutionary time. In their report, published today in the journal Genome Research, the scientists discuss this model in the ecological context of host-symbiont interplay.

"Symbiosis is an important driver of evolutionary novelty and ecological diversity," explains Wernegreen. "Microbial symbionts in particular have been major evolutionary catalysts throughout the 4 billion years of life on earth and have largely shaped the evolution of complex organisms."

Symbiotic bacteria live in root nodules of leguminous plants, in gutless marine worms, in echinoderms such as starfishes and sea urchins, and in specialized cells of insects such as aphids and tsetse flies. Many symbiotic relationships are obligate; neither the bacterium nor its host can live without the other.

Wernegreen's group focused on the bacterium Blochmannia, which has lived inside Camponotus and related ant genera for the past 30 million years or more. The bacteria may utilize the ant host for basic metabolic functions, including the initiation of DNA replication. In turn, the microbes may synthesize certain nutrients that enable the ants to inhabit unique ecological niches and thrive on nutritionally unbalanced food sources. This mutualistic association is thought to contribute to the astounding ecological success
'"/>

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:7/11/2014)... July 3, 2014, Shenzhen, China Researchers from Salk ... for the first time evaluated the safety and ... and successfully developed a new method, TALEN-HDAdV, which ... pluripotent stem cell (hiPSC). This study published online ... important theoretical foundation for stem cell-based gene therapy. ...
(Date:7/11/2014)... An international team of researchers, including scientists from the ... just a reported a major step in understanding photosynthesis, ... now maintains the oxygen in its atmosphere and which ... on earth. , The researchers report the first ... reaction, namely the step in which a specific protein ...
(Date:7/11/2014)... Researchers have pioneered a revolutionary new way to ... Virtual Finger, allows scientists to move through digital ... using the flat surface of their computer screens. ... orders of magnitude more efficient, saving time, money ... areas of experimental biology. The software and its ...
Breaking Biology News(10 mins):A new genome editing method brings the possibility of gene therapies closer to reality 2A first direct glimpse of photosynthesis in action 2Virtual finger enables scientists to navigate and analyze complex 3D images 2
... 13, 2012) The blood-brain barrier is essential for maintaining ... and isolating the brain,s specific hormonal and neurotransmitter activity from ... addition to nerve cells, the brain contains glia cells that ... blood-brain boundary is made by glia joined into an envelope ...
... DC - On January 18, 2012, Dr. Peter ... National Homeland Security Research Center in the Office ... Protection Agency, will lead a session titled "National ... national resilience to bioterrorism threats involves maximizing advanced ...
... previously un-named species of horse fly whose appearance is dominated ... honour of American pop diva, Beyonc a member of ... single, Bootylicious. , According to the Australian National Insect Collection ... ( Plinthina ) beyonceae , CSIRO,s Bryan Lessard, ...
Cached Biology News:Brain glia cells increase their DNA content to preserve vital blood-brain barrier 2Fly named in honor of Beyonce 2
(Date:7/10/2014)... (PRWEB) July 10, 2014 Product ... in very low abundance and are often “lost ... and time-consuming. , Join presenters Dr. Rowel Tobias, ... Dr. John Anders, Head of Quality at Nanotherapeutics, ... approach that can speed detection and quantitation while ...
(Date:7/10/2014)... Robert Harman, DVM, Founder and CEO of Vet-Stem, Inc., the ... relaunch of his highly informative blog, now named Stem Cells ... are Stem Cells ?” Dr. Harman’s purpose for blogging ... basics of stem cell therapy so that pet owners can ... when considering regenerative medicine. , A veterinarian by trade, Dr. ...
(Date:7/10/2014)... On July 9 Prime Minister ... Russia,s first national "Industry" award ... is developing a unique project called MabNext . ... number of innovative drugs based on monoclonal antibodies for ... place at the International Exhibition "Innoprom 2014" in Ekaterinburg. ...
(Date:7/10/2014)... to the International Atomic Energy Agency (IAEA) the ... acquiring sufficient quantities of plutonium or highly enriched ... device. The IAEA also notes that most cases ... which can be challenging to detect with most ... appearing this week in the Journal of ...
Breaking Biology Technology:Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2Sensitive detection method may help impede illicit nuclear trafficking 2
... Panacea Pharmaceuticals,Inc. announced today that BC Detect(SM), ... now available from Panacea Laboratories. BC,Detect(SM) is ... the identification,of recurrence among women successfully treated ... Panacea Pharmaceuticals, is certified under the,Clinical Laboratory ...
... of anti-infectives, to ... on pexiganan development, WELLESLEY HILLS, Mass., Oct. 17 ... of rights to pexiganan, Michael Zasloff, M.D. has joined the,company,s ... the African clawed frog while at NIH (National Institutes of,Health) ...
... October 24, at 1:30 p.m. EDT, ALAMEDA, ... ), a biopharmaceutical company developing innovative therapies,for the ... call to discuss third quarter results on Wednesday, ... PDT). Kenneth Chahine, Chief Executive,Officer, and Michael Coffee, ...
Cached Biology Technology:Panacea Pharmaceuticals Announces the Availability of BC Detect(SM), a Serum- Based Diagnostic Test for Breast Cancer 2Panacea Pharmaceuticals Announces the Availability of BC Detect(SM), a Serum- Based Diagnostic Test for Breast Cancer 3Panacea Pharmaceuticals Announces the Availability of BC Detect(SM), a Serum- Based Diagnostic Test for Breast Cancer 4MacroChem Announces Michael Zasloff, M.D., Ph.D. Joins Company's Scientific Advisory Board 2MacroChem Announces Michael Zasloff, M.D., Ph.D. Joins Company's Scientific Advisory Board 3MacroChem Announces Michael Zasloff, M.D., Ph.D. Joins Company's Scientific Advisory Board 4MacroChem Announces Michael Zasloff, M.D., Ph.D. Joins Company's Scientific Advisory Board 5Avigen, Inc. Announces Third Quarter 2007 Earnings Conference Call 2
HybriWell seals securely to a microscope slide surface in seconds to enclose single or multiple specimens in a small reagent volume and eliminate evaporation....
Comp Dim: chamber diam. depth 20 2.8 mm chamber maximum volume 720 μL...
... the Easy-Titer Human IgM Assay Kit to ... and easy-to-perform assay for Human IgM that ... kit incorporates a simple mix-and-read assay that ... from 15-500 ng/ml in approximately 30 minutes. ...
AC input: 230 V...
Biology Products: