Upland cotton No. 4 chromosome and SNP molecular markers associated with fiber strength

A fiber strength and molecular marker technology, which can be used in the determination/inspection of microorganisms, biochemical equipment and methods, etc., can solve the problems of complex genetic background, less cotton application, lack of reliability and stability, etc., and improve fiber quality. , the effect of improving breeding efficiency and shortening breeding cycle

Active Publication Date: 2017-07-07
INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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Problems solved by technology

[0006] In conclusion, SNP markers are currently the molecular markers with the most potential for development, and have been widely used, but they are rarely used in cotton. In previous studies, most of the segregation groups such as F 2 、BC 1 , the genetic b

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  • Upland cotton No. 4 chromosome and SNP molecular markers associated with fiber strength
  • Upland cotton No. 4 chromosome and SNP molecular markers associated with fiber strength

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[0022] 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 is given.

[0023] (1) Recombinant inbred line F 6:8 Gain

[0024] 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 in Anyang, Henan, the Quzhou experimental station of China Agricultural University and the experimental station of Xinjiang Aksu Dejia Science and Technology Seed Industry Co., Ltd. 6:10 group. Anyang and Quzhou use single-row areas, with a row length of 5 meters and a row spacing of 0.8m and (0.8+0.5)m, respectively, with 20 plants per row; Xinjiang uses a ...

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Abstract

The invention belongs to the technical field of cotton molecular breeding, and discloses SNP molecular markers associated with fiber strength of upland cotton as well as detection of the SNP molecular marker and application of the SNP molecular marker. The SNP molecular marker takes a cotton stable RIL group as a material, and is obtained through a genome re-sequencing method. The SNP markers are utilized to perform molecular marker assisted breeding, so that the breeding period can be greatly shortened, cotton fiber strength is enhanced, and the breeding efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of cotton molecular breeding, and in particular 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 plays an important role 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 increase of people's demand for medium and high-grade textiles, the requirements for fiber quality are increasing day by day, but the traditional breeding methods are mainly based on phenotype selection, the breeding efficiency is low, and it is difficult to meet the needs of quality breeding. The development of molecular marker technology has made it possible to directly select the genotypes of quantitative traits. QTL mapping by constructing ...

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Application Information

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IPC IPC(8): C12Q1/68
CPCC12Q1/6858C12Q1/6895C12Q2600/13C12Q2600/156C12Q2531/113C12Q2525/191C12Q2535/122
Inventor 巩万奎商海红张震范森淼袁有禄石玉真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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