HOME >> BIOLOGY >> NEWS
Genetic engineered crop studies questioned

the real world."

In the second study discussed in the article, researchers at Kansas State University reported in Science that they had discovered corn borer resistance to Bt toxins. Shelton and Roush question the methodology used in the study, "including that the authors did not demonstrate that resistance was actually to the same Bt toxin as in the plant or that the insects could survive on the Bt plant." Even so, they write, "this questionable laboratory study has generated considerable debate over whether the present resistance management policy should be overturned."

In another recent issue of Nature, a University of Arizona study showed that the pink bollworm's resistance to Bt-cotton was recessive in inheritance, but the paper questioned whether resistant bollworms developed more slowly than susceptible bollworms. This could possibly knock out random mating and dilute the insect's resistance in the field. "We hope that the take-home message won't be converted to another premature claim that Bt crops are doomed," Shelton and Roush say in their commentary.

Since the release of the monarch butterfly study, write Shelton and Roush, companies that make the genetically engineered agricultural seed have been confronted by freezes on the approval process for Bt transgenic corn by the European Commission and by "possible trade restrictions by Japan." In the United States, there have been calls for a moratorium on the further planting of Bt-corn.

In discussing the Cornell monarch butterfly report, Shelton and Roush voice their surprise that a "previous and more relevant and realistic study has been largely overlooked." While the Cornell laboratory study showed high mortality among monarch larvae that ingested genetically engineered pollen, an Iowa State University study by Laura Hansen and John Obrycki showed low mortality even when Monarch larvae were fed milkweed that had the highest levels of Bt pollen that would be encountered in
'"/>

Contact: Blaine P. Friedlander Jr.
bpf2@cornell.edu
607-255-3290
Cornell University News Service
10-Sep-1999


Page: 1 2 3

Related biology news :

1. Genetic mutations linked to the practice of burning coal in homes in China
2. Genetic differences might help distinguish thyroid cancers
3. Genetic modification of linseed produces healthier omega 3 and 6 fatty acids
4. Wiley publishes Welcome to the Genome: A Users Guide to the Genetic Past, Present, and Future
5. Genetically modified bacterium as remedy for intestinal diseases
6. Genetic analysis rewrites salamanders evolutionary history
7. Genetic map of important tree genes outlined
8. Genetically-engineered marathon mouse keeps on running
9. Genetic clues found for common congenital brain disorder
10. Genetic mutation linked to more aggressive breast cancer found more often in African-Americans
11. Genetic discovery could dramatically reduce need for liver transplants in children

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


(Date:5/16/2017)... , May 16, 2017   Bridge ... health organizations, and MD EMR Systems , ... development partner for GE, have established a partnership ... Portal product and the GE Centricity™ products, including ... EMR. These new integrations will ...
(Date:4/24/2017)... April 24, 2017 Janice Kephart ... with  Identity Strategy Partners, LLP (IdSP) , today ... without President Trump,s March 6, 2017 Executive ... , refugee vetting can be instilled with greater confidence, ... now, all refugee applications are suspended by until ...
(Date:4/18/2017)... 2017  Socionext Inc., a global expert in SoC-based imaging and ... the M820, which features the company,s hybrid codec technology. A demonstration ... Probe, Inc., will be showcased during the upcoming Medtec Japan at ... the Las Vegas Convention Center April 24-27. ... Click here for an ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... Iowa (PRWEB) , ... October 12, 2017 , ... ... based in Vilnius, Lithuania, announced today that they have entered into a multiyear ... is to provide CRISPR researchers with additional tools for gene editing across all ...
(Date:10/12/2017)... ... 12, 2017 , ... AMRI, a global contract research, development ... patient outcomes and quality of life, will now be offering its impurity solutions ... new regulatory requirements for all new drug products, including the finalization of ICH ...
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ... any gene in its endogenous context, enabling overexpression experiments and avoiding the use ... with small RNA guides is transformative for performing systematic gain-of-function studies. , ...
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ... pathology, announced today it will be hosting a Webinar titled, “Pathology is going ... Pathology Associates , on digital pathology adoption best practices and how Proscia improves ...
Breaking Biology Technology:
Cached News: