Method for rapidly breeding three-line rice maintainer line and sterile line by using rice genome analysis technology

A technology for genome analysis and maintainer lines, applied in botany equipment and methods, biochemical equipment and methods, plant gene improvement, etc., can solve problems such as difficult aggregation of good traits, long-term breeding methods, narrow genetic basis, etc., to achieve Shorten the breeding period and solve the effect of long breeding period

Active Publication Date: 2022-01-21
RICE RES INST GUANGDONG ACADEMY OF AGRI SCI
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Problems solved by technology

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the present invention proposes a method for rapidly selecting and breeding three-line rice maintainer lines and sterile lines using the rice

Method used

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  • Method for rapidly breeding three-line rice maintainer line and sterile line by using rice genome analysis technology
  • Method for rapidly breeding three-line rice maintainer line and sterile line by using rice genome analysis technology
  • Method for rapidly breeding three-line rice maintainer line and sterile line by using rice genome analysis technology

Examples

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Example Embodiment

[0032] Example 1 A method of rapidly breeding a three-system rice retention system and an inlet system using rice genome analysis techniques

[0033] Guang 8A is an excellent sterile system for the birth of the unit (the Rice Research Institute of Guangdong Academy of Agricultural Sciences) (corresponding to the main train is 8B), which has the quality of increased seedling rice, strong, integrated agronomic traits excellent. In July 2010, through Guangdong Technical Identification, 34 hybrid combinations of provincial-level certifications have been produced. A wide range of 8-high-88, Guang 8 Excellent 2168, Guang 8 Excellent 8, 8, 8, 8, 8, 8 excellent, 8 excellent 65, and 8 excellent 65, three-series hybrid rice, have been selected for the leading variety of Guangdong Province, large area in the province Promote planting. The defects in Guang 8A are defective is susceptible to rice blast, and the late leaves are premature decades, so they need to improve their rice blast resista...

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Abstract

The invention belongs to the technical field of rice breeding, and particularly relates to a method for rapidly breeding the three-line rice maintainer line and sterile line by using a rice genome analysis technology. According to the method, the maintainer line and the sterile line are synchronously improved, and the breeding age limit is fundamentally shortened; by taking the sterile plants of the offspring in the same combination as a contrast, comparing maintainer plants with fertile offspring in the same combination through a whole genome, and quickly removing maintainer plants carrying a minor restorer gene, conventional rice, a restorer line or a local variety with favorable characters can be taken as a donor male parent, and the problem of narrow hereditary basis of the existing maintainer line is solved; the linkage burdens for breaking bad alleles are screened by using large-group markers, and sterile plants and maintainer plants with similar genetic backgrounds are selected for pairwise hybridization through clustering analysis of whole-genome SNP marker genotypes, so that the problem of difficulty in polymerization of excellent characters is solved, and the method has important popularization and application values in breeding of hybrid rice.

Description

Technical field [0001] The present invention belongs to the field of rice breeding, and in particular, the present invention relates to a method of rapidly breeding the three-strand of rice retention system and inletation using rice genome analysis techniques. Background technique [0002] Hybrid Water Bore Technology is an important technique for ensuring food security in my country. Over the years, China's three-series hybrid water rice has been widely used in breeding production, and has been widely used in China and the world. However, due to the restrictions on the interactive genetic characteristics of three-system rice inletary nuclear, breeding three-line inletation needs to be improved, and the maintenance of new quality sources is also difficult, traditional Most of the retention system is achieved by hybridization between the retaining intercom, which limits the application of new excellent genes and new germplasm resources in the three-system retention system and infe...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04C12Q1/6895
CPCA01H1/02A01H1/023A01H1/04A01H1/045C12Q1/6895C12Q2600/13C12Q2600/156
Inventor 王重荣周少川黄道强周德贵王志东
Owner RICE RES INST GUANGDONG ACADEMY OF AGRI SCI
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