Navigation Links
Scientists Find Rice Gene for Grain Size and Yield

Chinese scientists have identified and cloned a rice gene that influences rice grain weight and yield, which could help scientists develop// higher yielding varieties of the world's most important food crop.

Little is known about the genetic mechanisms that determine yield and seed weight in plants, despite tremendous efforts by agricultural scientists in the past decade.

In a study published this week (8 April) in Nature Genetics, lead author Lin Hongxuan and colleagues from the Shanghai Institutes for Biological Sciences, studied two varieties of rice with highly significant differences in grain size.

After mapping their genomes, they found a gene called GW2 in the large-grain rice that was lacking in the small-grain rice.

They then created a variety of the naturally small-grained rice with the GW2 gene, and found that the gene increased the width and weight of rice grains and increased grain yield per plant by nearly 20 per cent.

The high-yield variant had nearly the same cooking or eating quality as conventional rice, although the grains had a darker appearance.

The team say the GW2 gene will facilitate breeding efforts to improve grain yield in food crops. But they say further evidence is needed to support their finding.

"The increased output of single plants might be influenced by environmental factors, so our finding needs to be tested in the randomised blocks of plants in paddies," Lin told SciDev.Net.

He said the GW2 gene might affect grain size by regulating the cell division cycle.

Zhu Zhen, deputy director of the Bureau of Life Sciences and Biotechnology of the Chinese Academy of Sciences, praised the study, saying it would give breeders more alternatives to explore in the search for improved varieties of rice.

"In the process of developing new crop varieties, the discovery of important agronomical genes is very important," Zhu told SciDev.Net.


Related medicine news :

1. Scientists plan human cloning clinic in the United States
2. Scientists found ancient Human Germ Killer
3. Scientists locate key hormone involved in appetite control
4. Scientists open the book of life
5. Scientists review SARS
6. Scientists crack dengue fever puzzle
7. Scientists push to lower hidden sodium in food
8. Indian Scientists Make Wide-Ranging Analysis And Annotation Of X Chromosome
9. Scientists have found effective brain regions for deep brain stimulation for Parkinson’s
10. Scientists reveal the secrets of sarcasm
11. Scientists Unveil Mechanism Behind Resistance to Severe Malaria
Post Your Comments:

(Date:10/13/2017)... Shelton, CT (PRWEB) , ... October 13, 2017 , ... ... and long-term care services, staged a mock evacuation of the facility as part of ... Department, Shelton Fire Department, Echo Hose EMS and Shelton City Emergency Manager, as well ...
(Date:10/13/2017)... ... ... Ellevate Network, the leading network for professional women, brought together some of ... their inaugural Summit in New York City in June. The event was livestreamed with ... 3 million. To watch the Mobilize Women video, click here . , ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... viewers the lowdown on sciatica in a new episode of "Success Files," which ... current events and innovation and investigates each subject in-depth with passion and integrity. ...
(Date:10/13/2017)... ... ... “America On The Brink”: the Christian history of the United States and ... of published author, William Nowers. Captain Nowers and his wife, Millie, have six ... years in the Navy. Following his career as a naval aviator and carrier ...
(Date:10/12/2017)... LA (PRWEB) , ... October 12, 2017 , ... Planet ... in the U.S., announced today its plans to open a flagship location in Covington, ... occupy the former Rooms To Go store next to Office Depot in the Holiday ...
Breaking Medicine News(10 mins):
(Date:10/7/2017)... IRVING, Texas , Oct. 6, 2017   ... industry with more than $100 billion in purchasing power, ... industry news and information. The Newsroom is ... chain and industry trends, infographics, expert bios, news releases, ... Besides having access to a wealth of resources at ...
(Date:10/2/2017)... 2, 2017 Diplomat Pharmacy, Inc. (NYSE: ... and Consulting, LLC , and named its founder as ... in Tennessee , will operate under ... EnvoyHealth,s service offerings for health care partners to include ... "In an interoperable world, technology delivers ...
(Date:9/28/2017)... Hill-Rom Holdings, Inc. (NYSE: HRC), will host ... webcast on Friday, November 3, 2017, beginning at 7:00 ... approximately 8:30 a.m. (CDT) / 9:30 a.m. (EDT). ... performance and guidance for 2018, Hill-Rom executives will also ... performance, and long-range financial outlook through 2020. ...
Breaking Medicine Technology: