HOME >> BIOLOGY >> NEWS
Bacterial relationships revealed

Bacteria are an indiscriminate lot. While most organisms tend to pass their genes on to the next generation of their own species, bacteria often exchange genetic material with totally unrelated species a process called lateral gene transfer.

That is why skeptics doubted that researchers could ever hope to work out the evolutionary history of bacteria. But now, thanks to the availability of sequenced genomes for groups of related bacteria, and a new analytical approach, researchers at the University of Arizona demonstrate that constructing a bacterial family tree is indeed possible.

Nancy Moran, Emmanuelle Lerat, and Vincent Daubin propose an approach that begins by scouring genomes for a set of genes that serve as reliable indicators of bacterial evolution. This method has important implications for biologists studying the evolutionary history of organisms by establishing a foundation for charting the evolutionary events, such as lateral gene transfer, that shape the structure and substance of genomes.

Bacteria promise to reveal a wealth of information about genomic evolution, because so many clusters of related bacterial genomes have been sequenced--allowing for broad comparative analysis among species--and because their genomes are small and compact.

In this study, the researchers chose the ancient bacterial group called gamma Proteobacteria, an ecologically diverse group (including Escherichia coli and Salmonella species) with the most documented cases of lateral gene transfer and the highest number of species with sequenced genomes.

The results support the ability of their method to reconstruct the important evolutionary events affecting genomes. Their approach promises to elucidate not only the evolution of bacterial genomes but also the diversification of bacterial species events that have occurred over the course of about a billion years of evolution.


'"/>

Contact: Barbara Cohen
bcohen@plos.org
415-624-1206
Public Library of Science
15-Sep-2003


Page: 1

Related biology news :

1. Bacterial protein recycling factor possible key to new class of antibiotics
2. Bacterial viruses make cheap easy vaccines
3. Bacterial infections alter allergic response
4. Bacterial alterations source of persistent COPD lung infections
5. Bacterial quorum-sensing structure solved
6. Bacterial control of zebra mussels, low power radio
7. Bacterial proteins cause autoimmunity in the antiphospholipid syndrome
8. Bacterial communities found to follow water
9. Bacterial strain may help clean up harmful industrial waste
10. The Largest Bacterium: Scientist Discovers New Bacterial Life Form Off The African Coast
11. Gene Discovery Paves Way For Preventing Deadly Bacterial Shock

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Bacterial relationships revealed

(Date:6/30/2015)... 30, 2015 Genisphere announced ... to help further develop Genisphere,s therapeutics capabilities and portfolio. ... having spent much of the last 25 years in ... Bioscience, and Johnson & Johnson. Tom started his career ... Biotech Corporate Finance. He graduated from Dartmouth College with ...
(Date:6/26/2015)... 26, 2015 ATL Technology, LLC, a top provider ... in single use solutions, headquartered in Springville, Utah ... California corporation with locations in ... Jose, Costa Rica ). This acquisition will ... with ATL Technology,s existing facility in Costa ...
(Date:6/25/2015)... , June 25, 2015  Imagine a tool specifically ... a healthier, happier life. That,s exactly what USANA,s ... do. The cutting-edge, portable health program provides a personalized ... to help improve your lifestyle and nutrition. ... and gala Wednesday night, USANA,s THA was honored with ...
Breaking Biology News(10 mins):Genisphere Appoints New CEO, Thomas Bliss 2Genisphere Appoints New CEO, Thomas Bliss 3ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2@USANAinc's Personalized Nutrition Program Wins Industry Innovation Award 2
(Date:7/2/2015)... , ... July 02, 2015 , ... ... and manufacturing of surgical instruments in Orthopedics, announced today the acquisition of ... the world's largest provider of surgical instruments to the Spine Industry. The acquisition ...
(Date:7/1/2015)... , July 1, 2015   Decision Resources ... cited advantages of Otezla are its oral administration, ... as reported by surveyed rheumatologists. Otezla was the ... the treatment of active psoriatic arthritis in ... standard of care includes conventional oral treatments including ...
(Date:7/1/2015)... ALTO, Calif. , July 1, 2015 /PRNewswire/ ... focused on the development of groundbreaking drugs to ... (ALS), announced today that Robert G. Miller ... Center at Sutter Health,s California Pacific Medical Center ... The ALS Association for $1.5 million to help ...
(Date:7/1/2015)... ... July 01, 2015 , ... A newly launched business ... to lower the barriers to innovation in life sciences R&D. The Pistoia Alliance President’s ... cash prizes of US$15,000 and a period of expert mentorship from a senior industry ...
Breaking Biology Technology:In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 3Surveyed Rheumatologists Report That Otezla's Oral Administration is its Single Greatest Advantage Over Currently Available Treatment Options 2Surveyed Rheumatologists Report That Otezla's Oral Administration is its Single Greatest Advantage Over Currently Available Treatment Options 3Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 2Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 3Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 4Pistoia Alliance Launches Startup Challenge 2Pistoia Alliance Launches Startup Challenge 3
Cached News: