Fertility restoration gene in wheat and uses thereof

US11130967B2 · kind B2 · utility

Assignees

• BEIJING NEXT GENERATION HYBRID WHEAT BIOTECHNOLOGY CO., LTD · CN
• PEKING UNIVERSITY INSTITUTE OF ADVANCED AGRICULTURAL SCIENCES · CN

Inventors

• Ligeng MA · Beijing, CN
• Zheng Wang · 安丰镇, CN
• Jian Li · Tianjin, CN
• Hang He · Chino Hills, US
• Shaoxia Chen · Beijing, CN
• Xingwang DENG · Beijing, CN

Key dates

• Filing date: Jul 24, 2017
• Grant date: Sep 28, 2021
• Expiry date: Oct 2, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12N2830/65
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

A fertility restoration gene in wheat and uses thereof, belonging to the field of plant biotechnology, specifically relating to the cloning of a recessive nuclear male sterility gene and a promoter thereof, and uses thereof in hybrid breeding. The fertility restoration gene FRG1 was successfully cloned by flow cytometry and high-throughput sequencing. The FRG1 gene can completely restore the male fertility of a Lanzhou genic male sterile mutant or allelic mutants thereof, which lays a foundation for the construction of a new wheat hybrid breeding technology system, meanwhile, which provides more possibilities to solve the technical bottlenecks of “three lines” and “two lines” hybridization technology of wheat, such as unstable fertility of sterile lines, limited resources for hybrid variety, the complexity of seed production technology and the high cost of seed production. The provided gene and method for propagation and maintenance of the sterile line have important significance and application value for hybrid breeding in wheat.