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Rapeseed breeding method adopting gene mapping technology

A technology for gene mapping and rapeseed, applied in the field of breeding, can solve problems such as hindering the improvement of rapeseed varieties, and achieve the effects of precise introduction and efficient aggregation, efficient breeding methods, and breakthroughs in long breeding cycles.

Active Publication Date: 2016-08-03
SICHUAN FANGPAI SEED CO LTD
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Problems solved by technology

Driven by the post-processing industry of rapeseed, the demand for new varieties of rapeseed suitable for mechanized production is increasing. However, some traditional breeding such as resistance to cracking horns and sclerotinia cannot solve problems, which hinders the further development of rapeseed varieties suitable for mechanized production. promote

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  • Rapeseed breeding method adopting gene mapping technology

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0024] see figure 1 , a kind of rape breeding method using gene mapping technology, comprises the steps:

[0025] (1) Selecting the Sichuan Basin and the ecological regions of the middle and lower reaches of the Yangtze River to collect anti-sclerotinia and crack-resistant rapeseed germplasm resources as donor materials for gene positioning materials and breeding;

[0026] (2) From the local main varieties, select a representative female parent of a hybrid with excellent comprehensive traits as parent 1, the anti-sclerotinia resource material obtained in step (1) is parent 2, and step (1) obtains the crack-resistant angle The resource material is parent 3, and parent 1 is crossed with parent 2 and parent 3 respectively to obtain F1 generations, a...

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Abstract

The invention provides a rapeseed breeding method adopting a gene mapping technology.A representative hybrid female parent with outstanding comprehensive characters is selected as a parent 1, a sclerotinia sclerotiorum resisting resource material is selected as a parent 2, a pod split resisting resource material is selected as a parent 3, the parent 1 is crossbred with the parent 2 and the parent 3 to obtain F1 generations, and the F1 generations are subjected to selfing to obtain two F2 colonies; a character survey, gene mapping and a back cross breeding improvement are carried out to obtain a female parent with two improved characters, namely sclerotinia sclerotiorum resistance and pod split resistance.The method breaks through the bottlenecks of a long cycle, poor predictability, low selection efficiency and the like of traditional seed breeding, and is faster, controllable and efficient.

Description

technical field [0001] The invention relates to the technical field of breeding, in particular to a rapeseed breeding method using gene positioning technology. Background technique [0002] At present, rape is the most important oil crop in my country, and the oil content of its seeds is 33% to 50%. Since 1995, the annual planting area has been 100 million mu, with an annual output of nearly 10 million tons of rapeseed, accounting for 40% to 45% of the total output of oil crops (excluding soybeans); at the same time, it also produces about 6 million tons of rapeseed cake Meal. Cakes have proven value and are rich in nutrition, and are the largest high-quality feed protein source to be developed and utilized in my country. In addition to being used to extract edible oil and feed, rapeseed can also be used to make margarine and artificial protein in the food industry. It is also widely used in metallurgy, machinery, rubber, chemical industry, paint, textile, soap making, pa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 尹宇杰
Owner SICHUAN FANGPAI SEED CO LTD
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