Chinese scientists discover heat-resistant rice gene

INSUBCONTINENT EXCLUSIVE:
Chinese researchers have identified a key gene that enhances rice's heat tolerance while maintaining grain quality and yield, which
addresses growing threats to rice production under extreme heat.The discovery, made by a team from Huazhong Agricultural University in
Wuhan, capital of central China's Hubei Province, was published on the website of the journal Cell on Wednesday. Under high temperatures,
the gene, QT12, interacts with the protein complex NF-Y to protect rice grains like a firewall inside the grains, deterring extreme heat
while also stabilizing starch and protein synthesis, said Li Yibo, the corresponding author.Li noted that, during last year's high
temperatures, the team conducted large-scale field trials in the Yangtze River basin
The results showed that inserting QT12 into the hybrid rice breed "Huazhan" increased yields by 49.1 percent, 77.9 percent and 31.2 percent
in the cities of Wuhan, Hangzhou and Changsha and improved quality.Li said the Yangtze River basin produces around two-thirds of China's
rice, but extreme heat in recent years has threatened rice farming.The discovery provides a novel molecular mechanism and breeding solution
to achieve both high yield and quality in rice under a high-temperature environment, he said, adding that the team has partnered with
domestic companies to accelerate breeding applications.(Cover: Farmers harvest rice in Fuzhou City, Jiangxi Province, east China, October 7,
2024
/VCG)