65438-0979, admitted to the Graduate School of Chinese Academy of Agricultural Sciences for a master's degree with high marks. After graduation, he was assigned to work in the Institute of Original Crop Variety Resources of China Academy of Agricultural Sciences. Since then, he has undertaken the important task of independent innovation in agricultural science and technology, developed high-quality crop genes and provided resource materials for crop breeding. 1986, by chance, he was sent to Mexico International Wheat and Corn Center for further study for three months. He finished his studies in less than three months. At that time, in early May, it was the season of wheat hybridization in Beijing. He thought about the experiment at home and returned to China one month early. When he returned to the office, the leader looked at him in surprise. After learning the situation, the leader said happily, "It's really reassuring to send people like you abroad!" From 65438 to 0990, Jia Jizeng saw an article published by Cornell University scholars in the journal Biotechnology, and he was keenly aware that this technology would have a far-reaching impact on the future research of crop germplasm resources and crop genetics and breeding. At this time, he is studying in all the places funded by the Rockwell Foundation in the United States, and the Institute is going to send him to the United States. However, considering that he was engaged in wheat germplasm resources, Cambridge Laboratory in England was in a leading position in the research of wheat molecular marker technology at that time, so he proposed to either go to the laboratory for further study or give up going abroad. Later, as he wished, he went to Cambridge laboratory for further study. There, Jia Jizeng worked hard. In addition to completing a specified project, he also completed two scientific research projects: molecular marker of powdery mildew resistance gene and identification of wheat exochromosome brought from China, which exceeded the normal workload of two people. 1992, more than a year of study is over. At that time, he had three choices: returning to China, studying for a doctorate and applying for other institutions abroad. At that time, molecular markers were popular in the world, and advertisements for such talents could be seen everywhere. With the working experience of Cambridge laboratory in England and the recommendation letter from the laboratory director, he can continue to study for a doctorate and easily find a well-paid job anywhere in the world. However, Jia Jizeng chose to return to China without hesitation. After that, he went abroad many times. Every time he returned to China, Jia Jizeng brought back a lot of reagents, medicines and even instruments. Some of them were donated from abroad, and some of them were used abroad, but he thought they could be reused. The total value of these experimental supplies exceeds100000 yuan. In order to cope with the "gene war" in the field of crop germplasm resources, Jia Jizeng, his teachers, colleagues and peers have successively undertaken and completed national key scientific research projects such as "973", "863" and "Wheat Functional Genome".
After five years' efforts, the national key basic research and development planning project (973), "Research on the Construction of Crop Core Germplasm, Exploration and Effective Utilization of Important New Genes", led by Jia Jizeng and Academician Zhang Qifa, has constructed the core germplasms of three major crops in China five years ahead of foreign countries, and initially discovered the distribution law of genetic diversity of the three major crop germplasm resources, which has important guiding significance for the genetic breeding of the three major crops. The new field of germplasm resources research based on genomics has been recognized by international peers. A technical system for efficient discovery of new genes was established, and a number of important new genes were discovered. The efficient germplasm innovation technology route was put forward, and a large number of excellent new germplasm were created. The excellent new germplasm with powdery mildew resistance cultivated by Jia Jizeng can solve the problem of long-term lack of powdery mildew resistance in China and increase wheat yield by 5%~30%. He developed a batch of new wheat molecular markers, ending the passive situation that China wheat molecular markers depend on foreign countries. More than 10,000 full-length wheat cdnas were obtained, making China the country with the largest number of full-length wheat cdnas in the world.
As early as 1985, which started in the seventh five-year plan, his research on "excellent germplasm resources" was not included in the national scientific and technological research. At that time, Jia Jizeng had just graduated with a master's degree and was full of vitality. He wrote a proposal and asked the director and dean for a "theory". The college said that this was decided by the Ministry of Agriculture. He confidently went to the Ministry of Agriculture and related staff to "theory" and repeatedly emphasized the significance and importance of the project, but he was not satisfied. One day in May 2004, he went to Sichuan to investigate the growth of wheat, and arrived in Luoyang, Henan at two o'clock in the afternoon. In spite of the hot weather, he immediately went to the field to investigate. The next morning, colleagues were surprised to see him busy in the experimental field in Beijing. Biological experiments will inevitably come into contact with isotopes, which will emit rays. Improper operation in the experiment will hurt people. In view of the "isotope phobia" among students, at the beginning of such experiments, Jia Jizeng often gives demonstrations in person and carefully explains the operation specifications and precautions of each step. An accidental leak occurred while cleaning up the waste from isotope experiments. Jia Jizeng felt really dangerous. He wouldn't let others do it, so he had to clean it up himself. All the students present were moved and admired by this example.
At the end of April 2003, SARS began to spread in Beijing. In order to facilitate management and carry out work effectively, Jia Jizeng told the students that the air in the experimental field is fresh and wheat hybridization in the wheat field is a good way to prevent SARS. Just as all the work was going on step by step, one of his students suddenly had a fever. Jia Jizeng immediately reported to the institute that when the hospital outpatient department could not rule out SARS and decided to send someone to the hospital fever clinic immediately, Jia Jizeng said without hesitation: "This is my student, and I should go." At that time, if students were diagnosed, they would be infected, even if they were not infected, they would be isolated. Colleagues and classmates were very nervous and wouldn't let him go with the car, but he insisted on going. When he arrived at the fever clinic, after detailed examination, the suspected SARS was ruled out. When he and the students returned safely, all the laboratory staff surrounded him tightly and cheered. Jia Jizeng not only led the team to overcome the genetic difficulties, but also created a humanistic environment. Whenever a colleague has a birthday, Jia Jizeng will send a birthday card with the signatures of all the staff and a small pot of flowers as a birthday gift. He also organized academic reports, sports competitions and other activities to increase academic exchanges between laboratory research groups, enhance team cohesion and promote cooperation among members. Over the past few years, Jia Jizeng has trained more than 50 postdoctoral, doctoral and master students for the country.