国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

National

Regional

Taiwan, HK, Macao

Special Coverage

Focus

Society

Profiles

Yield-enhancing gene identified in rice

(Xinhua)
Updated: 2009-03-23 16:47

BEIJING -- Chinese scientists announced on Monday that they have identified a gene that has played a key role in increasing the yield of China's high-yielding super rice.

The gene is known as DEP1, but its mutant is called dep1, which can accelerate the division of rice cells and produce more grains per panicle. The mutant will become an important tool for rice breeding.

Researcher Fu Xiangdong, from the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences, said his team has found the gene dep1 in high-yielding rice varieties grown in vast quantities in the Yangtze Plains and northeastern China.

Fu also said the gene can have a similar function in other crops such as wheat and barley, raising hopes of breeding high-yielding cereal varieties.

A reaserch paper has been accepted by the journal Nature Genetics and already appears in its Advance Online Publication.

China's Ministry of Agriculture launched the project of super rice strains in 1996, which has brought about many high-yielding rice varieties since then. The yields of some varieties now could exceed 12,000 kilograms per hectare.