HOME >> BIOLOGY >> NEWS
Emerging 'R&D' patterns in genes may reduce evolution's risks

The genetic blueprint at the heart of life may be divided into "research and development" and "production" sections, according to an author of a new study in this week's "Science" that compares genetic material in yeast, roundworms, insects and humans.

The distinction may help shunt the random genetic changes that cause evolution onto areas of the DNA where such changes have a better chance of benefitting the organism (the "R&D" section) and away from areas where they would more likely harm it (the "production" section).

"The great paradox of evolution is that you have many established functions to maintain in an organism, and how can you be conservative about those functions while experimenting to discover new and possibly advantageous gene functions?" says Edward Hedgecock, biology professor at The Johns Hopkins University.

If it is confirmed, the theory could aid researchers in their efforts to analyze genetic information from humans and other species.

With support from the National Institutes of Health, Hedgecock and other researchers conducted an extensive computerized comparison of the sequence of genetic information, known as genomes, found in yeast, the roundworm C. elegans and other nematodes, the fruit fly Drosophila, and humans.

New species arise throughout evolution. Comparing their genomes can therefore provide "snapshots" of the development of DNA at various points in evolutionary history. Since portions of DNA are used as instructions for building proteins, researchers can compare the details of these "snapshots" to get a feel for when life first developed various proteins.

If, for example, a gene for a protein is common to yeast and to animals, Hedgecock explains, then the protein's birth date was before the emergence of multicellular organisms.

Hedgecock and his coauthors focused most of their attention on proteins involved in the creation of
'"/>

Contact: Michael Purdy
mcp@jhu.edu
410-516-7160
Johns Hopkins University
9-Feb-2000


Page: 1 2 3

Related biology news :

1. International Conference on Emerging Infectious Diseases
2. Emerging frontiers genomics grant for blue-green bacteria
3. Emerging threats to tropical forests
4. Biological Challenges to Humanity: Emerging and Re-emerging Pathogens
5. 2002 International Conference on Emerging Infectious Diseases
6. Emerging trends: Scientific evidence in the courtroom
7. Emerging infectious diseases of wild animals are a threat to biodiversity and human health, according to new report
8. DNA Used To Create Self Assembling Conducting Wire: Breakthrough Will Lead To Next Leap In Emerging Nanoelectronics
9. Molecular Mechanochemistry: An Emerging Discipline At The Nexus Of Biology And Physics
10. Emerging Field Of Industrial Ecology
11. Outcome for acute lymphoblastic leukemia linked to gene expression patterns

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Emerging patterns genes may reduce evolution risks

(Date:7/31/2014)... have completed a 20-year study that looks at ... different times of the year. It finds that ... frame has no measurable negative consequences for the ... , The study was conducted by Gene Towne, ... fire chief, and Joseph Craine, research assistant professor, ...
(Date:7/31/2014)... An experimental vaccine protected 100 percent of animal models ... difficile , which causes an intestinal disease that kills ... of print in Infection and Immunity . ... and non-human primates against the purified toxins produced by ... orogastric spore infection, a laboratory model that mimics the ...
(Date:7/31/2014)... discovered the photovoltaic effect in 1839, humankind has sought ... for its own purposes. In a new research report ... FASEB Journal , scientists may have uncovered ... by focusing on a naturally occurring combination of lipids ... persistence over time and across speciessuggests that this specific ...
Breaking Biology News(10 mins):Study finds benefits to burning Flint Hills prairie in fall and winter 2Study finds benefits to burning Flint Hills prairie in fall and winter 3C. difficile vaccine proves safe, 100 percent effective in animal models 2Scientists shine bright new light on how living things capture energy from the sun 2
(Date:8/1/2014)... CHICAGO , Aug. 1. 2014 As ... U.S., the 2014 AACC Annual Meeting & Clinical Lab ... testing and patient care are introduced to the healthcare ... by the Expo,s 650 exhibitors will include the latest ... Advances in smartphones and biosensors have enabled ...
(Date:8/1/2014)... York , August 1, 2014 ... Transparency Market Research "Biophotonics Market - Global Industry Analysis, ... the market was valued at USD 25.16 billion in ... by 2020, growing at a CAGR of 10.4% from ... Market Report at  http://www.transparencymarketresearch.com/biophotonics-market.html Increasing demand ...
(Date:8/1/2014)... Aug. 1, 2014 Cambrex Corporation (NYSE: ... 30, 2014. Highlights , Second ... in the same period last year. , Second quarter ... in the same period last year (see table at the ... guidance increased, excluding the impact of foreign currency, to between ...
(Date:7/31/2014)... “2014 Deep Research Report ... is a professional and in-depth research report ... Polyurethane Resin basic information, including its definition, ... industry overview. This research covers the international ... well as global industry analysis covering macroeconomic ...
Breaking Biology Technology:Lab-on-a-Chip Technology to Be Featured at 2014 AACC Annual Meeting & Clinical Lab Expo 2Lab-on-a-Chip Technology to Be Featured at 2014 AACC Annual Meeting & Clinical Lab Expo 3Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 2Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 3Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 4Cambrex Reports Second Quarter 2014 Financial Results 2Cambrex Reports Second Quarter 2014 Financial Results 3Cambrex Reports Second Quarter 2014 Financial Results 4Cambrex Reports Second Quarter 2014 Financial Results 5Cambrex Reports Second Quarter 2014 Financial Results 6Cambrex Reports Second Quarter 2014 Financial Results 7Cambrex Reports Second Quarter 2014 Financial Results 8Cambrex Reports Second Quarter 2014 Financial Results 9Cambrex Reports Second Quarter 2014 Financial Results 10Cambrex Reports Second Quarter 2014 Financial Results 11Cambrex Reports Second Quarter 2014 Financial Results 12Cambrex Reports Second Quarter 2014 Financial Results 13Cambrex Reports Second Quarter 2014 Financial Results 14Cambrex Reports Second Quarter 2014 Financial Results 15Cambrex Reports Second Quarter 2014 Financial Results 16Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 3Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 4
Cached News: