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Efficient breeding method for early-maturing disease-resistant cotton

A cotton variety and early-maturing technology, applied in the field of cotton breeding, can solve the problems of long breeding cycle, difficulty in screening new varieties, heavy workload, etc., and achieve the effects of improving the success rate, shortening the acquisition time, and speeding up the breeding speed.

Inactive Publication Date: 2020-11-06
INST OF CEREAL & OIL CROPS HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the breeding methods of new cotton varieties mostly adopt the traditional hybrid breeding method, which has a long breeding cycle and heavy workload, and it is difficult to screen out new varieties with multiple excellent traits.

Method used

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  • Efficient breeding method for early-maturing disease-resistant cotton
  • Efficient breeding method for early-maturing disease-resistant cotton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 Shown, a kind of early-maturing disease-resistant cotton efficient breeding method comprises the steps:

[0023] S1. Based on the nearest neighbor classifier, select a cotton variety with the target disease-resistant trait as the female parent or the male parent in the disease-resistant cotton variety resource according to the preset target disease-resistant trait;

[0024] S2. Based on the Faster R-CNN model, select the target variety as the recurrent parent in the early-maturing cotton variety resources for each female parent or male parent according to the rules of complementary advantages, and complete the directional hybridization between the female parent or male parent and the recurrent parent;

[0025] S3. Using the SSR marker method to analyze the genetic similarity of the F1 generation population obtained in step S2 based on the molecular markers of the target disease resistance traits, and screen out F1 single plants that carry the target dis...

Embodiment 2

[0029] Such as figure 2 Shown, a kind of early-maturing disease-resistant cotton efficient breeding method comprises the steps:

[0030] S1. Based on the nearest neighbor classifier, according to the environmental requirements of the planting site and the preset target disease-resistant traits, select a cotton variety with target disease-resistant traits as the female parent or male parent from the disease-resistant cotton variety resources;

[0031] S2. Based on the Faster R-CNN model, according to the environmental requirements of the planting site and the rules of complementary advantages, select the target variety as the recurrent parent for each female parent or male parent in the early-maturing cotton variety resources, and complete the orientation of the female parent or male parent and the recurrent parent Hybridization to obtain the F1 generation group;

[0032] S3. Using the SSR marker method to analyze the genetic similarity of the F1 generation population obtaine...

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Abstract

The invention discloses an efficient breeding method for early-maturing disease-resistant cotton. The method comprises the following steps: screening a target cotton variety as a female parent or a male parent based on a preset target disease-resistant character; selecting a target early-maturing cotton variety as a recurrent parent based on a preset advantage complementation rule, and finishing directional hybridization of the female parent or the male parent and the recurrent parent to obtain an F1 generation group; performing genetic similarity analysis on the F1 generation group obtained in the step S2 based on a molecular marker of a target disease resistance character by utilizing an SSR marking method; and carrying out backcross on the recurrent parent serving as a father parent andthe F1 single plant carrying a target disease-resistant character gene, and breeding an early-maturing and high-yield strain carrying the target disease-resistant character from offspring. Through combination of SSR molecular markers and deep learning, the breeding speed of germplasm resource innovation is greatly increased, and meanwhile, varieties integrating multiple excellent traits can be screened out.

Description

technical field [0001] The invention relates to the field of cotton breeding, in particular to a high-efficiency breeding method for early-maturing disease-resistant cotton. Background technique [0002] Cotton is an important economic crop and occupies an important position in the development of the national economy. However, cotton diseases have always limited the development of cotton planting, such as cotton blight, verticillium wilt and so on. In order to promote the sustainable development of cotton in my country, we must pay attention to and strengthen the breeding of cotton disease resistance, and innovate new cotton varieties that are resistant to multiple diseases and have compound resistance. [0003] At present, the breeding methods of new cotton varieties mostly adopt the traditional hybrid breeding method, which has a long breeding cycle and heavy workload, and it is difficult to screen out new varieties with multiple excellent traits. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04C12Q1/6895
CPCA01H1/02A01H1/04C12Q1/6895C12Q2600/13C12Q2600/156
Inventor 李妙王国印朱继杰赵红霞王士杰贾晓昀陈丽娟马栋和剑涵聂俊杰
Owner INST OF CEREAL & OIL CROPS HEBEI ACAD OF AGRI & FORESTRY SCI
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