China successfully cultivated genetically modified sweet potato with improved starch quality
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The harvested transgenic sweet potato (photo taken on October 22) was taken in the experimental field of the Institute of Plant Physiology and Ecology, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences.
Due to changes in starch composition, different reactions of transgenic sweet potato (right) and traditional sweet potato after spraying iodine solution (photo taken on October 22).
(Reporter Wang Wei Yang Jinzhi) The starch-modified transgenic sweet potato developed in China was successfully cultivated and harvested smoothly. Zhang Peng, a researcher at the Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, recently revealed to reporters that the new sweet potato harvested in the field trial has changed the starch quality of sweet potato through genetic modification technology, which will enhance the sweet potato in China. Breeding potential and broadening its application areas.
Sweet potato, also known as sweet potato, hawthorn, sweet potato, sweet potato, sweet potato, etc., is the fourth largest food crop in China after rice, wheat and corn. The National “Eleventh Five-Year Plan for Bio-industry Development†clearly states that sweet potato is one of the important non-food energy crops, and is the main raw material for producing fuel ethanol in the Yangtze River and Huanghuai areas. However, sweet potato is an asexually propagated crop, and it is very difficult to breed new varieties through traditional cross breeding. The use of genetic engineering to improve the agronomic traits of sweet potato can accelerate the germplasm innovation of new sweet potato varieties, so research in this field is a global concern.
On October 22nd, the researcher and researcher Zhang Peng of the Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences showed the harvested genetically modified sweet potato in the experimental field.
The starch composition of sweet potato is an important factor affecting its industrial application. Conventional sweet potato starch has an amylose content of between 20% and 30%. The processing of bio-based products based on starch requires diversification of raw material quality. However, relying on traditional breeding to change the quality of starch is very difficult and time consuming, requiring a lot of manpower and material resources, and it is difficult to meet the urgent needs of the starch processing industry.
It is reported that Zhang Peng, a researcher and senior agronomist of Liu Guiling from Shandong Taian Academy of Agricultural Sciences, recently successfully harvested genetically modified sweet potato in the experimental field of Shandong Taian Academy of Agricultural Sciences. On this basis, the experiment will be further expanded to cultivate more improved sweet potato varieties by crossing with China's fine traditional sweet potato. At the same time, research in cooperation with relevant departments in Shandong will provide new materials and technologies for industrial applications.