Navigation Links
Changing environment organizes genetic structure
Date:11/13/2007

HOUSTON -- Nov. 13, 2007 -- What is the fundamental creative force behind life on Earth" It's a question that has vexed mankind for millennia, and thanks to theory and almost a year's worth of number-crunching on a supercomputer, Rice University physicist and bioengineer Michael Deem thinks he has the answer: A changing environment may organize the structure of genetic information itself.

Deem's research is available online and slated to appear next month in Physical Review Letters.

"Our results suggest that the beautiful, intricate and interrelated structures observed in nature may be the generic result of evolution in a changing environment," Deem said. "The existence of such structure need not necessarily rest on intelligent design or the anthropic principle."

The information that allows all living things to survive and reproduce is encoded in genes. Deem's theory probed the structure of this genetic information, looking for patterns that were created over time.

The study by Deem and postdoctoral fellow Jun Sun found the structure of genetic information becomes increasingly modular when two conditions are taken as givens: horizontal gene transfer (HGT) and a changing environment. Like modular furniture that can be rearranged in different functional patterns, modular genes are standardized components that lend themselves to flexible rearrangement, and this genetic modularity arises spontaneously because of the selective pressure of a changing environment and the existence of horizontal gene transfer.

Genes are typically transferred vertically. People, plants and animals pass genes vertically, from generation to generation, through sexual reproduction. Bacteria transfer genes vertically via conjugation. HGT allows genes, pieces of genes and collections of genes to move between species, even in cases where vertical transfer is physically impossible.

Though scientists have known about HGT for years, it was th
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Changing the global dietary environment
2. Global deal fuels QUTs world-changing research
3. New study examines how rearing environment can alter navigation
4. SRMs track fire retardants in humans and environment
5. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
6. Genes, Environment and Health Initiative invests in genetic studies, environmental monitoring
7. UCR engineers to develop new tool to measure how environmental exposures affect health
8. TAU scientists probe deep questions aboard EcoOceans environmental research ship
9. Genes and environment grant funds close look at nature-nurture overlap in common diseases
10. Americans remain pessimistic about the environment, Stanford-AP survey finds
11. Environmental setting of human migrations in the circum-Pacific Region
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... , Dec. 16, 2014 Research and Markets ... addition of the "Global Chemical Sensor Market ... http://photos.prnewswire.com/prnh/20130307/600769 One ... increasing demand for medical sensors in biomedical applications. ... for quick and correct diagnosis during surgical procedures. ...
(Date:12/11/2014)... SALEM, N.C. , Dec. 10, 2014  That blood ... for quite a while. Hypertension – the medical term for ... in the early 1800s, and the inflatable cuff that,s used ... That doesn,t, however, mean there,s nothing new about hypertension, its ... some long-held beliefs about the condition and the best ways ...
(Date:12/10/2014)... 9, 2014 CIE San Diego has launched ... the connective tissue that enhances care coordination among social ... share client-level information; earned a second $1 million grant ... serving seniors aging in community and; will be recognized ... 11 th 4-6p. CIE San Diego ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4
... caused some lethal human epidemics in Central Africa. Research ... from the animal reservoir, which is an any case ... and certain forest antelopes. Results have come from work ... and their partners (1) to shed light on the ...
... at the University of Southern California's Viterbi School ... Ultrasonic Transmission Tomography" (HUTT) system that offers 3D ... those produced by existing commercial X-ray, ultrasound or ... biomedical engineering at the Viterbi School, presented HUTT ...
... Grieg Fry, Ph.D., a scientist from the University of ... the origin and evolution of one of nature's most ... the March issue of the journal Genome Research. , ... Colubroidea, evolved glands for the storage and dispersal of ...
Cached Biology News:Ebola virus: from wildlife to dogs 2Ebola virus: from wildlife to dogs 3Ebola virus: from wildlife to dogs 4A probe, not an echo 2A probe, not an echo 3A probe, not an echo 4Venom doc tracks down snake bioweapons 2
(Date:12/15/2014)... , Dec. 15, 2014  GlassesOff Inc. (OTCBB: GLSO) ... as an independent director of the Company,s Board ... AeroScout and served as its CEO until its acquisition ... a $240 million transaction. Recognized as the inventor of ... leadership, AeroScout provided Wi-Fi -based RFID solutions focused on ...
(Date:12/13/2014)... CHARLOTTE, N.C. (PRWEB) December 13, 2014 ... (UNC Charlotte) spin-out company has changed its name to ... more accurate representation of where we are today,” said ... “We’ve extended our platform’s applications beyond breast cancer diagnostics ... is a reflection of that evolution.” , Founded in ...
(Date:12/13/2014)... The DNA Microarray market market ... is expected to grow at a CAGR of ... the TOC of the DNA Microarray for an ... with help of various tables and figures. , ... market consists of instrument, consumables, and services, where ...
(Date:12/13/2014)... According to population studies: “North Carolina ... and 2030." If a population explosion like that actually ... state in the country. , To that end, North ... of North Carolina Forum on December 16th to ask ... necessary infrastructure in place? Enough clean water? And will ...
Breaking Biology Technology:AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3CanDiag Inc. Expands Product Scope Under a New Name: OncoTab, Inc. 2DNA Microarray Market Is Expected to Grow at a CAGR of 15.2% from 2014 to 2019 - A Report by MicroMarket Monitor 2DNA Microarray Market Is Expected to Grow at a CAGR of 15.2% from 2014 to 2019 - A Report by MicroMarket Monitor 3DNA Microarray Market Is Expected to Grow at a CAGR of 15.2% from 2014 to 2019 - A Report by MicroMarket Monitor 4North Carolina Chamber of Commerce: Asking Questions & Gathering Answers with a Futurist 2
... WORTH, Texas, May 16 George Abercrombie, president,and ... than 200,Fort Worth business leaders today at a ... of a pandemic flu presents businesses with challenges,unlike ... "While businesses are all too familiar with preparing ...
... presented at conference, NATICK, Mass., May 16 ... announced that results from an international,multi-center patient registry ... Direct Visualization System will be presented at,Digestive Disease ... San Diego,CA. Registry results will be announced in ...
... CEDAR KNOLLS, N.J., May 16 Highlighting the,company,s ... current product,pipeline, Michael V. Novinski, President and CEO ... featured in an extensive interview published,recently in The ... ago, TWST interviews the leaders of financial markets, ...
Cached Biology Technology:CEO Addresses Fort Worth Business Leaders About Developing Pandemic and Business Continuity Plans 2CEO Addresses Fort Worth Business Leaders About Developing Pandemic and Business Continuity Plans 3Boston Scientific's SpyGlass(R) Direct Visualization System to Be Prominently Featured at Digestive Disease Week(R) 2Boston Scientific's SpyGlass(R) Direct Visualization System to Be Prominently Featured at Digestive Disease Week(R) 3Boston Scientific's SpyGlass(R) Direct Visualization System to Be Prominently Featured at Digestive Disease Week(R) 4Boston Scientific's SpyGlass(R) Direct Visualization System to Be Prominently Featured at Digestive Disease Week(R) 5Michael V. Novinski, Emisphere President/CEO Featured in the Wall Street Transcript 2Michael V. Novinski, Emisphere President/CEO Featured in the Wall Street Transcript 3
... At the forefront of Agilent analytical solutions ... local area networking (LAN) allows you to ... fast and informed decision making. Just as ... all the flexibility and performance needed for ...
The novel and unique HCTplus delivers unmatched information-rich data-dependent LC/MSn data for todays challenge in proteomics and metabonomics work....
The essence of fluorescence analysis is sensitivity. The high throughput optical system in the RF-5301PC employs a blazed holographic grating, photomultiplier and digital signal processing to provide...
... In Situ Assay Kit is a fluorescent-based ... cells undergoing apoptosis. The kit is for ... diagnostic or therapeutic procedures. CHEMICON®s CaspaTag™ Pan-Caspase ... approach to detect active caspases. The methodology ...
Biology Products: