Rapid multi-target property polymerization breeding method for rape
A technology for targeted trait and aggregation breeding, applied in the fields of botanical equipment and methods, applications, and plant genetic improvement, can solve problems such as lack of breeding materials, improved quality of commercial rapeseed, and lack of regional layout, to improve selection efficiency and accuracy. efficiency, shorten the breeding cycle, and improve the breeding efficiency
A technology for targeted trait and aggregation breeding, applied in the fields of botanical equipment and methods, applications, and plant genetic improvement, can solve problems such as lack of breeding materials, improved quality of commercial rapeseed, and lack of regional layout, to improve selection efficiency and accuracy. efficiency, shorten the breeding cycle, and improve the breeding efficiency
CN102224801AInactive Publication Date: 2011-10-26JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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[0020] Example: Breeding of Brassica napus dwarf, high-oil CMS male sterile lines.
[0021] A: In late December 2006, the cytoplasmic male sterile maintenance line Ning B7 (Pu Huiming, Qi Cunkou, Fu Shouzhong, Zhang Jiefu, Wu Shimei, Gao Jianqin, Chen Xinjun, the cytoplasmic male sterile line of double-low rapeseed rape that had passed vernalization Research on Breeding of Ning A7 I. Backcross Breeding of MICMS Double Low CMS Line Ning A7, Journal of Jiangsu Agricultural Science, 2001, 17(2):69-72) and High Oil Content Line HOC2 (Fu Shouzhong, Zhang Jiefu, Qi Cunkou, Pu Huiming, Gao Jianqin, Chen Xinjun, Chen Feng, Breeding of Brassica napus germplasm with high oil content, Chinese Journal of Oil Crops, 2008,30(3):279-283), dwarf line APL03 (Fu Shouzhong, Zhang Jiefu, Qi Cunkou, Pu Huiming, Gao Jianqin, Chen Xinjun, Breeding of new germplasm APL03 of Brassica napus with petalless dwarf, Journal of Plant Genetic Resources 2006, 7(4):468-470) Transplanted from direct-seeded fiel...
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The invention provides a rapid multi-target property polymerization breeding method for rape, belonging to a plant breeding method, and comprising the following steps of: selecting excellent breeding target properties requiring to be polymerized, preparing single-cross combinations at room temperature in winter locally, preparing multi-parent complicated cross combinations in summer at different places, and assembling and polymerizing the multiple parents with excellent target properties based on the breeding requirements; performing microspore seedling cultivation on the complex filial generation for which multi-target property breeding restructuring polymerization is already realized, constructing a dihaploid (DH) breeding group, and realizing rapid fixation and homozygosis of the target genotypes of the generation of the multi-target property polymerization; and performing effective field and indoor identification and screening on the target genotypes of the generation for which the multi-target property polymerization is realized based on the property characteristics, performing molecular marker assistant selection on important target properties, and breeding new materials conforming to the breeding targets.
Description
technical field [0001] The invention relates to rapid aggregation breeding of multi-objective traits of rapeseed, which belongs to plant breeding methods, and specifically relates to breeding methods such as off-site assembly and aggregation of multi-objective traits, rapid fixation and homozygosity of target genotypes, and effective identification and screening of aggregation traits. . Background technique [0002] Rapeseed is an important oil crop in my country, with an annual planting area of about 100 million mu, a total output of more than 11 million tons, a production of more than 4.4 million tons of rapeseed oil, and more than 6 million tons of high-quality protein cakes. The planting area and total output rank first in the world first place. In the past two decades, through the vigorous promotion of new high-yield and double-low rapeseed varieties and their high-efficiency cultivation techniques, the yield of rapeseed in my country has increased significantly, the ...
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Patent Timeline
26 Oct 2011
Publication
CN102224801A
- IPC
- A01H1/02; A01H1/08
- Inventors
- 浦惠明; 龙卫华