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SNP molecular markers related to fiber strength of upland cotton 25# chromosome

A molecular marker, fiber strength technology, applied in recombinant DNA technology, microbial determination/inspection, DNA/RNA fragments, etc., can solve the problems of less cotton application, complex genetic background, lack of reliability and stability, etc. Effects of breeding efficiency, improving fiber quality and shortening breeding cycle

Active Publication Date: 2017-08-15
INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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Problems solved by technology

[0005] In conclusion, SNP markers are currently the molecular markers with the most potential for development, and have been widely used, but they are still less used in cotton. 2 、BC 1 , the genetic background is complex, or the results obtained only in a single environment, so the reliability and stability are lacking, and there are few stable QTLs in multiple environments, and the initial purpose of some studies is only for the positioning of target genes

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  • SNP molecular markers related to fiber strength of upland cotton 25# chromosome
  • SNP molecular markers related to fiber strength of upland cotton 25# chromosome

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Embodiment Construction

[0021] The present invention will be further clarified through the detailed description of the specific embodiments below, but it is not a limitation to the present invention, but only an example.

[0022] (1) Recombinant inbred line F 6:8 Gain

[0023] For field planting and DNA extraction from 2007 to 2008, please refer to Patent Application Publication Number: CN 101613761A, Title of Invention: Patent application documents for SSR markers linked to the main genes of cotton fiber strength. In 2009, they were planted at the Experimental Station of Cotton Research Institute of Chinese Academy of Agricultural Sciences, Anyang, Henan, Quzhou Experimental Station of China Agricultural University, and the Experimental Station of Xinjiang Aksu Dejia Technology Seed Industry Co., Ltd. 6:10 group. Anyang and Quzhou use single-row areas, with 5 meters of row length, 0.8m and (0.8+0.5)m apart, and 20 plants per row; Xinjiang uses 6-row areas, 2 meters of row length, and 15 plants per row....

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Abstract

The invention relates to SNP molecular markers related to fiber strength of an upland cotton 25# chromosome. The invention belongs to the technical field of cotton molecular breeding and discloses the SNP molecular markers related to fiber strength of the upland cotton and detection and application thereof. The SNP molecular markers are obtained by taking a stable RIL group of cotton as a material by means of a genome re-sequencing method. The SNP markers disclosed by the invention are used for molecular marker-assisted selection, so that the breeding period can be greatly shortened, and the breeding efficiency of the cotton fiber strength can be increased.

Description

Technical field [0001] The invention belongs to the technical field of cotton molecular breeding, and specifically relates to a SNP molecular marker related to the fiber strength of upland cotton and its detection and application. Background technique [0002] As a major fiber crop, cotton occupies an important position in the world economy. Among the four cotton species widely cultivated in the world, upland cotton occupies the most important position, and its output accounts for more than 90% of the world's total cotton output. With the growth of people's demand for medium and high-end textiles, the requirements for fiber quality are increasing. However, traditional breeding methods are mainly selected through phenotypes, and the breeding efficiency is low, and it is difficult to meet the needs of quality breeding. The development of molecular marker technology makes it possible to directly select the genotype of quantitative traits. By constructing a cotton genetic map for Q...

Claims

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Application Information

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IPC IPC(8): C12Q1/68C12N15/11
CPCC12Q1/6895C12Q2600/13C12Q2600/156
Inventor 商海红巩万奎范森淼张震袁有禄石玉真吴东葛群刘爱英龚举武李俊文
Owner INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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