首页 > 传媒扫描  > 中新网-Ecns: Researchers discover new gene to develop high-yield rice cultivars  
中新网-Ecns: Researchers discover new gene to develop high-yield rice cultivars 
作者:
来源:
发布时间:2020-04-03

Chinese researchers have discovered that a gene can determine grain width and weight in rice and be used to develop high-yielding rice cultivars, according to a report by the Science and Technology Daily Tuesday.

The research published in New Phytologist was jointly carried out by the China National Rice Research Institute (CNRRI) and the Agricultural Genomics Institute at the Shenzhen Chinese Academy of Agricultural Sciences.

The yield of rice is mainly determined by its effective panicle number, grain number per panicle and grain weight, which also affect the appearance and commercial value of rice, said Gao Zhenyu, a researcher from the CNRRI.

Based on the recombinant inbred line and high-resolution genetic map of super hybrid rice, the research team identified a gene, TGW2.

The study found that in some rice cultivars, the expression of TGW2 is high, leading to an alteration in grain width and weight by influencing cell proliferation and expansion in glumes.

Further analysis showed that when TGW2 reacts with KRP1, a regulator of cell cycles in plants, it can negatively regulate grain width and weight.

The findings provide new insights into the genetic mechanism underlying grain morphology and grain weight, and uncover a promising gene for improving rice yield.    

来源:中新网

(浏览次数: )
 
上篇文章:科学网:我国科学家发现杂交稻稳产高产基因
下篇文章:中国网-西班牙语:Investigadores descubren nuevo gen para desarrollar variedades de arroz de alto rendimiento
打印 | 关闭
相关文章
Copyright © 2003- China National Rice Research Institute. 中国水稻研究所 版权所有
地址:杭州市下城区体育场路359号(邮政编码:310006) 电话:+86 571 63370235
杭州市富阳区水稻所路28号(邮政编码:311401)111111111111111111
浙ICP备05004719号 浙公网安备33010302000429号