Recently, Yushang Microfinance learned from the Institute of Crop Science of the Chinese Academy of Agricultural Sciences that after ten years of continuous research, the research team of Diao Xianmin of the Institute of Crop Science of the Chinese Academy of Agricultural Sciences has constructed the first high-quality pan-genome and genetic variation map of millet millet, and discovered 139 loci and genes related to important agronomic traits of millet millet, which provides a theoretical basis and technical path for molecular breeding and cultivation of breakthrough varieties of millet millet in the future. The results were published in Nature Genetics on December 1.
Millet millet is also known as millet, millet and rhubarb rice, which is one of the earliest domesticated major crops in China, mainly planted in the semi-arid areas of Asia and Europe. However, with the rise of staple crops such as rice, wheat and maize, millet has gradually become a non-staple crop. In recent years, with the change of climate and environment, as well as concerns about agricultural sustainability and food security, millet millet has attracted extensive attention due to its short growth cycle, strong root nutrient absorption capacity, low water requirement, and adaptation to saline-alkali stress environment. However, there is still a lack of systematic basic research on the genetic structure, genome variation, domestication and breeding-related functional genes of millet cultivar resource populations, which restricts the development of millet breeding and industry.
It is understood that on the basis of analyzing the population structure of 516 core germplasm resources of millet millet in the world, the research team assembled 32 high-quality genomes, systematically analyzed the genomic variation in the process of domestication and improvement of millet millet, and constructed the first pan-genome of millet and the most comprehensive high-quality genomic variation map so far. These results provide an important data basis for the research and utilization of cereal crops such as millet millet, and also provide an important reference for the mining and utilization of crop germplasm resources.
At the same time, this study systematically analyzed the population structure, origin and evolution history and genome domestication characteristics of millet cultivar resources, which provided strong evidence for confirming that millet is a single-origin crop in China and was introduced to Central Asia and Europe through Northwest China.
Qian Qian, academician of the Chinese Academy of Sciences, Zhang Xianlong, academician of the Chinese Academy of Engineering, and other experts said that the study proved that millet is the origin of China's crop from the molecular level through the application of high-quality pan-genome and other cutting-edge technologies, and built a rapid mining platform for important germplasm and genetic resources of millet millet, which provides new ideas and methods for further improving the effective utilization of crop germplasm resources in China, and helps to ensure national food security and improve agricultural competitiveness. Yushang Microfinance believes that in the near future, millet may be reborn after technological transformation and return to people's daily life, like all modern crops.
*:Internet.
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