A method of aggregation breeding using distant hybridization and anther culture technology of Chinese and American rice

A technology of aggregation breeding and distant hybridization, which is applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of difficult stability, segregation of hybrid offspring madness, acceleration of offspring stability, etc., and achieve good affinity

Active Publication Date: 2016-03-02
山东笨笨农业科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Distant hybridization refers to the hybridization between distantly related species. Although it can improve the heterosis of rice, due to the complexity of its genetic background, the separation of hybrid offspring is crazy, and it is difficult to stabilize, and the breeding selection is difficult. How to improve The breeding effect of distant hybridization, accelerating the stability of offspring is also a problem that needs to be solved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method of aggregation breeding using distant hybridization and anther culture technology of Chinese and American rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Combine below figure 1 Further illustrate a kind of rice aggregation breeding method utilizing distant hybridization and anther culture technology:

[0018] (1) Collection of rice breeding materials: Jiangsu main variety Wuyunjing 7, American rice resource material Cpslo; the genetic difference between Wuyunjing 7 and American rice resource material Cpslo is greater than 80%.

[0019] ⑵ Hybridization between distantly related rices: using Wuyunjing No. 7, the main variety in Jiangsu, and Cpslo, a rice resource material from the United States, for hybridization F 1 generation.

[0020] (3) planting F 1 F 2 ; use F at the same time 1 CF 1 、CF 1 ', then CF 1 、CF 1 'In the haploid breeding with anther culture as the material, Qingwuyunjing 7 with good quality, good taste, high seed setting rate and high yield per unit area were obtained respectively; from F 2 Select a single plant for haploid breeding for anther culture, and establish a pedigree of flower seedlings...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a pyramiding breeding method utilizing the Sino-US rice distant hybridization and anther culture technology. Hybridization is carried out between rice materials which are very different from each other in genetic backgrounds, complementation of protogene is fast achieved by utilizing the anther culture haploid breeding technology and the pyramiding breeding technology, and the maximization of the heterosis is achieved. The genetic distance between cross parents can be lengthened, and the heterosis is enhanced. The output, the resistance and other favorable characters can be greatly improved either the indica type rice is hybridized with the American rice or the japonica rice is hybridized with the American rice. Complementation between favorable characters at home and abroad can be gradually achieved through the backcross technology and the pyramiding breeding technology. The stability of breeding materials is accelerated through haploid breeding of anther culture. The advantage of high yield per plant can be obtained, and the yield of a whole group is facilitated.

Description

technical field [0001] The present invention relates to a kind of aggregation breeding method utilizing Chinese and American rice distant hybridization and anther cultivation technology, specifically illustrates the hybridization between rice materials with huge differences in genetic background, the utilization of anthers to cultivate haploid breeding technology and aggregation breeding technology, Quickly realize the complementation of advantageous genes. Background technique [0002] Rice is one of the most important food crops in my country, and more than 50% of the population in China takes rice as a staple food. With the development of agricultural production and the continuous improvement of people's living standards, the proportion of rice in food will continue to increase. However, under the premise of limited arable land resources, how to increase the yield of rice per unit area is of great significance to ensure the food security of our country. At present, the y...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 余波林添资龚红兵景德道周义文盛生兰李闯钱华飞曾生元
Owner 山东笨笨农业科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap