HOME >> BIOLOGY >> NEWS
Scientists find genetic basis of insect's resistance to engineered crops

Genetically engineered crops with built-in insecticides are an increasingly popular tool for controlling agricultural pests. Some experts, however, believe that using those modified crops could backfire by forcing the development of genetically resistant pests.

Now, a team of geneticists has identified a gene that confers high levels of resistance in a common agricultural pest a discovery which will allow farmers and government officials to take early steps to prevent uncontrollable outbreaks.

The scientists published their findings in the Aug. 3 issue of the journal Science.

The geneticists, from North Carolina State University, Clemson University and the University of Melbourne, studied the DNA of the tobacco budworm moth (Heliothis virescens), which feeds on a variety of crops and has developed resistance to most conventional chemical insecticides.

"Not only will knowledge about this gene enable us to detect the early signs of pests evolving resistance to the current engineered plants, it may also allow us to modify the plants so they will be defended against the new pest strains," said Dr. Fred L. Gould, the William Neal Reynolds Professor of entomology at NC State and a co-author on the Science paper.

Specifically, the researchers located the recessive gene (BtR-4) that confers much of the resistance in the moth to natural toxin from the soil bacterium called Bacillus thuringiensis (Bt). Several crops including cotton, which is a host plant for the moth's larvae have been genetically encoded with the insecticidal Bt toxin, which kills all budworm moths except rare individuals that contain a pair of the recessive genes.

The popular Bt crops give farmers a tool for controlling pests like the tobacco budworm moth while reducing the need for potentially dangerous chemical pesticides. But some people, including organic farmers who have long used naturally produced Bt bacteria for controlling pests, worry that t
'"/>

Contact: Dr. Fred Gould
fred_gould@ncsu.edu
919-515-1647
North Carolina State University
2-Aug-2001


Page: 1 2 3

Related biology news :

1. Scientists to prototype cyberinfrastructure for research and education access to ocean observatories
2. Scientists sequence genome of kind of organism central to biospheres carbon cycle
3. Scientists find nanowires capable of detecting individual viruses
4. Scientists discover potential new way to control drug-resistant bacteria
5. Scientists explore genome of methane-breathing microbe
6. Scientists decipher genetic code of biothreat pathogen
7. Stuck on you: Scientists lay bare secrets of bacterial attachment proteins
8. Scientists discover proteins involved in spread of HIV-1 infection
9. Scientists fear new Ebola outbreak may explain sudden gorilla disappearance
10. Scientists reinvent DNA as template to produce organic molecules
11. Scientists visualise cellular handmaiden that restores shape to proteins

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/14/2017)... (NYSE: IBM ) is introducing several innovative partner startups ... collaboration between startups and global businesses, taking place in ... nine startups will showcase the solutions they have built with ... France is one of the ... percent increase in the number of startups created between 2012 ...
(Date:5/16/2017)... 16, 2017   Bridge Patient Portal , ... MD EMR Systems , an electronic medical ... GE, have established a partnership to build an ... the GE Centricity™ products, including Centricity Practice Solution ... These new integrations will allow healthcare delivery ...
(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... platform specifically designed for life science researchers to analyze and interpret datasets, ... Franklin, who made a major contribution to the discovery of the double-helix ...
(Date:10/11/2017)... ... ... Personal eye wash is a basic first aid supply for any work environment, but most ... you rinse first if a dangerous substance enters both eyes? It’s one less decision, and ... unique dual eye piece. , “Whether its dirt and debris, or an acid or alkali, ...
(Date:10/11/2017)... , Oct. 11, 2017  VMS BioMarketing, a leading ... a nationwide oncology Clinical Nurse Educator (CNE) network, which will ... need for communication among health care professionals to enhance the ... nurses, office staff, and other health care professionals to help ... breast cancer. ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... implantation and pregnancy rates in frozen and fresh in vitro fertilization (IVF) ... and maternal age to IVF success. , After comparing the results from the ...
Breaking Biology Technology:
Cached News: