Recurrent selection breeding method of upland cotton based on single-gene dominant genic male sterility

A recurrent selection, single-gene technology, applied in the field of breeding to increase the probability of offspring mutation and easy operation

Inactive Publication Date: 2021-05-07
SHIHEZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dominant genic sterile materials have also been applied in breeding, among which the Taigu genic male sterility of wheat has also been applied in cross breeding. At present, the application of dominant genic sterile materials in cotton recurrent selective breeding has not been reported.

Method used

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  • Recurrent selection breeding method of upland cotton based on single-gene dominant genic male sterility
  • Recurrent selection breeding method of upland cotton based on single-gene dominant genic male sterility
  • Recurrent selection breeding method of upland cotton based on single-gene dominant genic male sterility

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Raw materials: 8 fine cotton varieties (as shown in Table 1), Shida 98-6A;

[0035] Table 1 Parent material

[0036]

[0037] 1. The specific implementation process:

[0038] 1) In the first season (April-September 2015), at the Shihezi University Cotton Research Institute Experimental Base in Erlian, Shihezi University Experimental Field, Shihezi City, Xinjiang, the sterile plant of "Shida 98-6A" was used as the female parent, respectively. and 8 materials with excellent traits such as high quality, high disease resistance, high clothing content, large boll, high yield, and early maturity are used as male parents (as shown in Table 1), and crossed (30-40 bolls), Harvesting Hybrid Seed F 0 (as in Table 2).

[0039] Table 2 Hybrid Seed F 0

[0040] Season one

[0041]

[0042]

[0043] 2) In the second season (October 2015-April 2016), at the Damao Base of China Cotton Research Institute in Sanya, Hainan, two plans were adopted:

[0044] ①The first scheme...

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Abstract

The invention discloses a recurrent selection breeding method of upland cotton based on single-gene dominant genic male sterility. Hybridization is carried out by taking created single-gene dominant genic male sterility cotton Shida cotton 98-6A as a female parent and taking multiple excellent upland cotton varieties as recurrent male parents, so that an excellent upland cotton variety can be converted into a single-gene dominant genic male sterility cotton germplasm resource, and a multi-parent recurrent selection group is constructed; and a transformed dominant genic male sterility material is subjected to multiple rounds of mass selection-mass crossing, so that the variation range of offspring materials is large, new germplasm resources are created, appearance and polymerization of target excellent characters are accelerated, and the breeding and selective breeding efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of breeding, and in particular relates to a method for recurrent selective breeding of upland cotton based on single-gene dominant sterility. Background technique [0002] The current conventional cotton hybridization technique is: configure a cotton hybrid combination, first select a variety as the female parent, remove the stamens of each flower on the female parent during the flowering period of cotton, and then infuse the pollen of the male parent. [0003] The dominant genetic male sterile upland cotton "Shida 98-6A", which is beneficial to the single gene control of the unique genetic germplasm resources, is used as the female parent, which can save the tedious manual emasculation for cross breeding. "Shida 98-6A" is a genetically stable upland cotton sterility material selected by our research group (Cotton Molecular Breeding Department, Agricultural College, Shihezi University) by combining distant h...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A01H1/02A01H1/04A01H6/60
CPCA01H1/02A01H1/04A01H6/60
Inventor孙杰张新宇李艳军刘峰薛飞
OwnerSHIHEZI UNIVERSITY