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Chinese scientists "assemble" genes to make rice high yield and delicious

via:CnBeta     time:2018/1/21 14:31:25     readed:316

He said that at present, the high-end rice market in China is basically dominated by foreign brands such as Koshinetsu in Japan, basmati rice in Thailand and Basmati in Pakistan. The most expensive price is more than 100 yuan / kg. The most commonly recognized rice in China is rice varieties commonly grown in five of Heilongjiang Provinces, which have excellent quality genes and fertile soil and a large temperature difference between day and night in the mature period. However, it is difficult to meet the needs of consumers because the suitable planting areas of rice flower varieties are limited to the five permanent areas of northeast China.

Researchers analyzed the key genes of Pakistani basmati and American rice lement, and found that gw8 and gw7 genes play an important role in improving rice quality, appearance and yield respectively. Related results published twice in the world's top journals "Nature - Genetics."

The Chinese Academy of Sciences, Hefei Institute of Material Science and Technology Institute of Biological and Agricultural Engineering and the Chinese Academy of Sciences Institute of Genetics long-term cooperation in rice germplasm innovation and applied research, the use of the latest molecular design and breeding technology, gw8, gw7 efficient genes such as artificial hybridization, ion beam Mutant rice variety Wuyunjing 7 was obtained, and a long-grain mutant was obtained as a low-yielding variety, and a new high-quality rice variety-Kexunjing 9 was bred.

After more than three years of cultivation adaptability test and pre-market promotion, "Kexunjing 9" is suitable for single-season or double-season late rice production and has a wide range of applications. It can be used in the south of Anhui Province, Jiangsu, Zhejiang and Shanghai Planting.

At present, the promotion of the species proposed five-year plan, through large-scale self-renting and farming, planting 20,000 acres to achieve the scale.

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