Unleashing GMO's into the environment

." Environmentalists have given the idea a cautious welcome. "It would help," says Bebb. "I do think there's a need for research like this before experiments come out of the lab."

Sue Mayer of GeneWatch UK agrees. "Models are extremely useful and they can really pick up what things are sensitive to. They are bound to make you feel that there has been rigorous investigation before you go to the next step." But models are only ever as good as the data you put in, she warns. But what will the biotech companies think? "I suspect that industry would baulk at such a thorough approach," says Peter Kareiva, a senior ecologist at the US National Marine Fisheries Service. It could take up to five years to get enough data on GM salmon strains for the model to work, for example. But Mayer says that firms won't have a choice if regulators deem such tests appropriate. To develop their model, Muir and Howard identified six aspects of the life history of fish that affect their "fitness"-the number of offspring they produce. These include how many fish survive to adulthood, the age at which they sexually mature and the number of eggs females produce. Then they developed a computer model based on these six traits that predicts how any modified strain would fare against the wild-type fish.

The researchers applied their model to a strain of Japanese ricefish, or medaka, to which they had added the gene for human growth hormone. They counted and measured separate populations of modified and unmodified fish for around two years to see how they compared.

The modified fish were less likely to survive to adulthood, but they reached sexual maturity earlier and the females laid more eggs. Attempting to predict how these effects balance out would be extremely difficult, but the computer model can work it out.

Muir and Howard found that even though the modified fish were more likely to die young, they would still take over the natural pop

Contact: Claire Bowles
New Scientist

Page: 1 2 3 4

Related biology news :

1. Destination discovery: Unleashing your research potential
2. Research suggests unborn children may be at risk from environmental pollution
3. Will a reduction in military spending improve our environmental future?
4. Mercury in the environment
5. Near-zero-energy buildings blessing to owners, environment
6. 8 environmental stewards win $900,000 in biodiversity awards
7. Chemical Society announces EPA awards for environmentally friendly technology
8. Corals can reestablish symbiosis with algae from their environments after bleaching
9. Biolubricants smooth way to a cleaner environment
10. Is that plant a tortoise or a hare? Answer predicts its response to environmental change
11. East Asian governments urged to harness market forces to improve environment, save money

Post Your Comments:

(Date:6/4/2019)... ... 2019 , ... Harper was three years old when her owners took her ... caused painful osteoarthritis in the joints. She was referred to a veterinary specialist ... surgical specialist, Dr. Christopher Eich of Southern California Veterinary Specialty Hospital , examined ...
(Date:6/4/2019)... ... June 04, 2019 , ... Lajollacooks4u is delighted to announce it has been ... hospitality excellence, is given only to businesses that have achieved consistently outstanding traveler reviews ... , To qualify for the Certificate of Excellence –- an award that ...
(Date:6/1/2019)... ... 31, 2019 , ... The University of Vermont Health Network ... $6M Series B Financing Round. , “With the commitment from the UVM ... financial and business resources to bear as we advance our biopharmaceutical products to ...
Breaking Biology News(10 mins):
(Date:5/31/2019)... N.C. (PRWEB) , ... May 30, 2019 , ... ... is the first to demonstrate an efficient delivery system for the sustained release ... injuries. The platelet-rich plasma-based gel system was able to deliver CM into the ...
(Date:5/15/2019)... ... May 16, 2019 , ... Emulsifiers are ... food and beverage products rely on these ingredients to create stable quality food ... declarations. This paradigm shift triggers food formulators to seek out alternatives for starches, ...
(Date:5/7/2019)... ... May 06, 2019 , ... "The new ... number of repositories being asked to store cellular products being used in ... contributors who are world leaders, who have shared their expertise in building and ...
(Date:5/2/2019)... ... April 30, 2019 , ... The centuries old practice of brewing beer ... local craft breweries, and even home brewing clubs scattered across the nation. , ... that when mastered can produce a superb product. Students at South Dakota School ...
Breaking Biology Technology:
Cached News: