LATEST NEWS
   
 



   Search News

    News Archive

  You are here: Home >> News >> China experts identify gene for yield, height in rice


China
China experts identify gene for yield, height in rice
04-May-2008 Reuters via Forbes

CHINA - KABUL, May 5 (Reuters) - Scientists in China have identified a single gene that appears to control rice yield, as well as its height and flowering time, taking what may be a crucial step in global efforts to increase crop productivity.

In an article published in Nature Genetics, the researchers said they were able to pinpoint a single gene, Ghd7, which appears to determine all three traits.

Previous studies identified a region on chromosome 7 which seemed to be responsible, but they were not able to zero in on any specific gene.

"Our study shows that a single gene can control several traits with major effects. It can double the yield, determine flowering time and plant height," said Zhang Qifa of the Huazhong Agricultural University in Wuhan province in China.

"Previously, we thought we needed to change many genes to change rice yield, now we just need to manipulate a single gene to increase productivity," he told Reuters by telephone.

Zhang and his colleagues studied 19 rice varieties in Asia and found that plants that were shorter, had fewer grains per cluster of flowers, and flowered earlier were lacking in the gene Ghd7.

When the gene was restored, the scientists saw sharp changes of increased yields, a doubling of the time to flowering and a 67 percent increase in height.

The scientists also found five different versions of Ghd7.

"The most highly active versions were present in warmer regions, allowing rice plants to fully exploit light and temperature by delaying flowering and increasing yield. Less active or inactive versions were found in cooler regions, enabling rice to be cultivated in areas where the growing season is shorter," they wrote. (Reporting by Tan Ee Lyn; Editing by John Chalmers)

comments powered by Disqus
 
Philippines
  Biofuels won't cause food crisis, says expert
  Ateneo studes come up with bioethanol from rice straws
  Golden rice: First field tests in the Philippines
  More rice with less water
  PCARRD-DOST urges adoption of makapuno embryo culture tech
  The 'monster' unmasked
  'Lumot' seen as source of biodiesel
  Philippine gov't denies Greenpeace claim of GMO contamination in US rice
  9 scientists, NGO get biotech awards
  Ecology group sounds alarm over GMO rice
  Greenpeace questions GMO policy
  Asean looks at RP as 'test case' in implementing biofuels policy
  Philippine biofuels law a model for other countries
  RP, IRRI join forces to attain rice self-sufficiency by 2010
 
China
  Biofortification for China: Political responses to food fortification and GM technology, interest groups, and possible strategies
  China experts identify gene for yield, height in rice
 
Korea
  Mandatory GMO labeling is the best solution - Korea
  South Korea begins imports of biotech corn
 
Pakistan
  Scientists urged to safeguard agri resources
 
Egypt
  Egypt approves commercialization of first GM crop
 
Africa
  Could GM crops help feed Africa?
 
Europe
  French lawmakers pass bill on GM crops
 
Global
  Biotechnology could help solve food crisis, Monsanto asserts
  Cutting edge science helps the poor overcome soaring food prices
  International day of biological diversity
  Thousand gather for meeting on UN-backed treaty biosafety
  Agriculture in the 21st century
  Biotech solutions for food and fuel highlighted at world congress on industrial biotechnology
  More news..
   


SEARCA Biotechnology Information Center
UPLB Campus 4031, Los Baños, Laguna, PHILIPPINES
Telephone +6349 536 2290 ext. 406 / 169 / 135
Fax +6349 536 4105
E-mail bic@agri.searca.org

SEARCA BIC is one of the biotechnology information nodes of the International Service for the Acquisition of Agri-biotech Applications Global Knowledge Center (ISAAA KC) and hosted by the Southeast Asian Regional Center for Graduate Study and Research in Agriculture (SEARCA). It was officially established in 2000 to address the needs of the region for a highly credible, sound and factual biotechnology information center in the Southeast Asian region accessible to various stakeholders.

Empowerment through shared information.


Quick Links: About Us     |     Our Activities     |     Events & Announcements     |     Media Releases     |     News     |    Publications &  Information Resources     |      Photobank     |     Other Resources

Contact Us         |     Sign-up to SEARCA BIC E-news Service (e-mail newsletter)


© 2000 - 2012 SEARCA Biotechnology Information Center. All Rights Reserved.