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:


(Date:4/19/2016)... DUBAI , UAE, April 20, 2016 ... can be implemented as a compact web-based "all-in-one" system ... in the biometric fingerprint reader or the door interface ... requirements of modern access control systems. The minimal dimensions ... the ID readers into the building installations offer considerable ...
(Date:4/14/2016)... , April 14, 2016 ... and Malware Detection, today announced the appointment of ... the new role. Goldwerger,s leadership appointment comes ... the heels of the deployment of its platform at ... behavioral biometric technology, which discerns unique cognitive and physiological ...
(Date:3/31/2016)... , March 31, 2016  Genomics firm Nabsys has ... CEO, Barrett Bready , M.D., who returned to ... the original technical leadership team, including Chief Technology Officer, ... Product Development, Steve Nurnberg and Vice President of Software ... the company. Dr. Bready served as CEO ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... June 27, 2016 , ... Newly created 4Sight Medical ... to the healthcare market. The company's primary focus is on new product introductions, ... strategies that are necessary to help companies efficiently bring their products to market. ...
(Date:6/24/2016)... , June 24, 2016 Epic ... sensitively detects cancers susceptible to PARP inhibitors by ... tumor cells (CTCs). The new test has already ... therapeutics in multiple cancer types. Over ... DNA damage response pathways, including PARP, ATM, ATR, ...
(Date:6/23/2016)... 2016   Boston Biomedical , an industry ... to target cancer stemness pathways, announced that its ... Drug Designation from the U.S. Food and Drug ... including gastroesophageal junction (GEJ) cancer. Napabucasin is an ... cancer stemness pathways by targeting STAT3, and is ...
(Date:6/23/2016)... Prostate Cancer Foundation (PCF) is pleased to announce 24 new Young ... cancer. Members of the Class of 2016 were selected from a pool of ... More About the Class of 2016 PCF Young Investigators ... ... ...
Breaking Biology Technology:
Cached News: