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Beech ssr1 marker, primer pair, preparation method and application thereof

A primer pair and beech technology, applied in biochemical equipment and methods, microbe determination/testing, DNA/RNA fragments, etc., can solve problems such as poor stability

Inactive Publication Date: 2017-12-05
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although scholars at home and abroad have used ISSR, RAPD and other markers to study the genetic diversity of beech populations, both ISSR and RAPD markers are dominant markers with poor stability and cannot be directly applied to molecular marker-assisted breeding and QTL mapping

Method used

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  • Beech ssr1 marker, primer pair, preparation method and application thereof
  • Beech ssr1 marker, primer pair, preparation method and application thereof
  • Beech ssr1 marker, primer pair, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment

[0029] Extraction and enzyme digestion of total DNA from beech

[0030] Select young beech leaves and extract the nuclear genome by CTAB method; use EcoRV to digest at 37°C for 3 hours, and inactivate the endonuclease at 65°C for 20 minutes; the reaction system is 20 μL, including 2.0 μL of 10×Buffer, 1.0 μL of EcoRV endonuclease, 2 μL of DNA, 15.0 μL of sterilized double distilled water;

[0031] Connection of connector

[0032] Connect the beech genomic DNA digested with EcoRV in step to the upper and lower linkers (upper linker sequence GTAATACGACTCACTATAGGGCACGCGTGGTCGACGGCCCGGGCTGGT, sequence listing SEQ.ID.No.4; lower linker sequence ACCAGCCC-NH2, sequence listing SEQ.ID.No.5); The 60 μL ligation system contains 9 μL enzyme-digested beech genomic DNA, 100 pmol of the upper and lower adapters; the ligation reaction is carried out under the condition of 1 times T4 ligase buffer, and ligated overnight at 16°C; the ligated mixture is reacted at 65°C for 20 minutes to inac...

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Abstract

The invention discloses a Beech tree SSR1 marker, a primer pair and a preparation method and application thereof. The inventor uses a specific primer pair JS1 to amplify the total DNA of the beech tree by PCR to obtain a simple repeat sequence SSR1 marker. The method is simple and easy to operate, and the obtained simple repeat sequences have high polymorphisms in the population and between populations of the three natural populations of Zelkova. Beech tree SSR1 marker is a co-dominant marker. Compared with other molecular markers, SSR marker has good repeatability and high reliability. It can be applied to the evaluation of genetic diversity of beech tree, the construction of genetic map of beech tree, and the spatial distribution of genetic variation of beech tree population. The study of pattern and origin and evolution of Beech trees, as well as the calibration of target genes, can also be applied to molecular marker-assisted breeding and QTL research of Beech trees.

Description

technical field [0001] The invention belongs to the technical field of molecular markers in biological sciences, in particular to a beech SSR1 marker, a pair of primers and a preparation method and application thereof. Background technique [0002] Zelkova schneideriana Hand.-Mazz. is a large deciduous tree belonging to the genus Zelkova in the family Ulmaceae, endemic to my country. Beech trees are distributed in the Huaihe River Basin in my country and the middle and lower reaches of the Yangtze River south of the Qinling Mountains. Beech wood is dense and hard, with bright color, beautiful texture and strong corrosion resistance. It is the first-class wood for the production of various high-end furniture and handicrafts. At the same time, because of its beautiful tree shape, large canopy, and rich seasonal changes in leaf color, it is also a popular traditional color-leaf garden landscape tree species. Due to the low germination rate of beech seeds, the difficulty of na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N15/11C12Q1/68
Inventor 张日清汪灵丹金晓玲刘海龙
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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