Third-Generation Hybrid Wheat Technology
Team name
Third-Generation Hybrid Wheat Technology
Principal Investigator
Research Objectives
Wheatis one of the most important staple crops all over the world, and wheat breeders confront the challenge of dramatically increasing wheat yieldto meet the demand of the continually expanding human population.Hybrid wheat emerges as the preferred approach to improve wheat yield.Compared with CHA-based hybridization system, CMS hybridization system, and TGMS- and PTGMS-based hybridization systems, the third-generation hybrid system based on non-conditional recessive genic male sterile mutants exhibit pronounced advantages, such as broad sources of restoring gene, insensitivity to environmental and climate conditions, and no negative alloplasmicor cytoplasmic effects. Our research is concentrated onthe establishment of the third-generation hybrid wheat system, encompassing activities such as the identification of male sterile mutants, elucidation of fertility genes, development of pivotal hybrid system components, and genetic transformation. Furthermore, we undertake projects to explore the molecular regulatory mechanisms of male sterility and outcrossing traits in wheat.
Team members
l Zheng Wang, Ph.D. in genetics, research fellow, responsible for genetic analysis and functional characterization of genes underlying male fertility in wheat.
Research Projects
l Research on the regulation of recessive nuclear male sterile lines and effective tiller numbers in wheat and innovation of new germplasm (2023-2025), Provincial Natural Science Foundation of Shandong. Project objectives: This project aims to provide stablerecessive genic male sterile mutants and fertility genes for the third-generation hybrid wheat system, and to reduce the seeding rate and seed cost of hybrid wheat by increasing the effective tillering number of wheat, thereby promoting the development of hybrid wheat.
l Research Achievements
We have been engaged in the research of the third-generation hybrid wheat technology for a long time. The establishment and application of the third-generation hybrid wheat system are the focus of market competition for domestic and foreign seed industry groups. After years of effort, we have developed all the core components of the third-generation hybrid breeding technology and proved that the third-generation hybrid technology could work well in wheat.
Selected Publications
Jian Li, Kuanji Zhou, Zheng Wang, Junli Zhou, XingWang Deng*. Research progress, problems, and prospects in hybrid wheat seed production technology based on recessive nuclear genetic male sterile lines. 2022. Chin. Sci. Bull. 26: 3140-3151.
Jian Li#, Zheng Wang#, Zhenyi Chang, Hang He, Xiaoyan Tang, Ligeng Ma*, XingWang Deng*. 2021. A functional characterization of TaMs1 orthologs in Poaceae plants. Crop J9: 1291-1300.
Jian Li#, Zheng Wang#, Guangming He, Ligeng Ma*, XingWang Deng*. 2020. CRISPR/Cas9-mediated disruption of TaNP1 genes results in complete male sterility in bread wheat. J Genet Genomics47: 263-272.
Patents
Jian Li, Zheng Wang, XingWang Deng. 2023. Fertility-related wheat TaMS7 gene and its application method. ZL201780001491.3, China.
Ligeng Ma, Zheng Wang, Jian Li, Hang He, Shaoxia Chen, Xing Wang Deng. 2021. Fertility restoration gene in wheat and uses thereof. ZL201710599589.5, China.