. Energy News .

Genetically modified cotton worries some
by Staff Writers
Mexico City (UPI) Oct 21, 2011

disclaimer: image is for illustration purposes only

The contamination of wild cotton in Mexico with genetically modified cotton poses a risk to biodiversity, agricultural experts say.

Scientists at the National Autonomous University of Mexico say seed dispersal can result in gene transference between cotton populations event thousands of miles apart, Inter Press Service reported Thursday.

Varieties of Mexican wild cotton that are contaminated with transgenes -- genes from one species introduced artificially into another -- can undergo rapid evolution with unpredictable consequences, the researchers said.

"The genetic diversity of wild populations is very high, and that of cultivated cotton is very low. Gene flow can reduce the differentiation between populations, but we have no idea what impact that might have," Ana Wegier, the head of the research project for UNAM, said.

"What we are seeing is the effect on biodiversity of 15 years of growing transgenic crops under permits," Weiger said.

In 1996, to boost cultivation in the face of the collapse of international prices for cotton, the Mexican government authorized experimental planting of genetically modified cotton.

Transgenic cotton is now grown on a commercial scale on an area of more than 250,000 acres with harvests of 500,000 tons.

Related Links
Farming Today - Suppliers and Technology

Get Our Free Newsletters Via Email
Buy Advertising Editorial Enquiries


. Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Canadian scientists map the cannabis genome
Saskatoon, Canada (SPX) Oct 21, 2011
A team of Canadian researchers has sequenced the genome of Cannabis sativa, the plant that produces both industrial hemp and marijuana, and in the process revealed the genetic changes that led to the plant's drug-producing properties. Jon Page is a plant biochemist and adjunct professor of biology at the University of Saskatchewan. He explains that a simple genetic switch is likely respons ... read more

NASA postpones climate satellite launch to Oct 28

NASA Readies New Type of Earth-Observing Satellite for Launch

NASA, Japan Release Improved Topographic Map of Earth

NASA Readies New Type of Earth-Observing Satellite for Launch

GIS Technology Plays Critical Role to Aid Joplin Tornado Survivors

Galileo - keeping time with atomic clocks

Factfile on Galileo, Europe's rival to GPS

Soyuz ready with Galileo satellites for milestone launch

Bolivia natives, president in talks stand-off

Bolivia cancels controversial Amazon highway

"Albedo effect" in forests can cause added warming, bonus cooling

Bolivian natives, president in talks stand-off

FuturaGene and Guangxi Academy of Sciences to Develop Sustainable Biofuel Processes

MixAlco Voted Most Transformative Technology of 2011

Codexis and Raizen to Develop First Generation Ethanol

Greenleaf Biofuels Announces Closing of Full Project Funding

US Solar Jobs Census Finds Solar Employment Soars As US Economy Lags

BrightSource Energy announces plans for 750 MW Rio Mesa solar facility

Solar Revolution on Brink of Winning Long War

Solar Frontier Panels Demonstrate Durability and Safety

Vestas receives 99MW order for Texas wind-energy project

GE invests in Indian wind power

Euro Bank: Wind policy 'direction' needed

Natural Power US to act as Owner's Engineer on 2.1GW Wyoming wind farm

Thirteen dead in China coal mine blast: report

Sundance says 'no reason' to doubt Hanlong deal

Mountaintop coal mining moves a step ahead

13 killed in China mine explosion

Hong Kong mothers march against mainland babies

China's local election candidates campaign online

Chinese hit and run toddler dies

Immolations spark fear in China's Tibetan Buddhists


The content herein, unless otherwise known to be public domain, are Copyright 1995-2011 - Space Media Network. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement