A kind of ssr molecular marker bvre105 for detecting graininess of beet seeds and its application
A molecular marker and related molecular marker technology, which can be used in the determination/inspection of microorganisms, DNA/RNA fragments, biochemical equipment and methods, etc. To achieve the effect of reducing workload and shortening cycle
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specific Embodiment approach 1
[0026] Specific embodiment one: the present embodiment detects the SSR molecular marker BvRE105 of sugar beet seed grain property, and the primer pair that is used for PCR amplification this molecular marker is BvRE105S and BvRE105A, and specific sequence is:
[0027] BvRE105S: 5'-TCACCAGGATTAACCAAGCC-3'
[0028] BvRE105 A: 5'-ACTTCCACGTCTTTGCAACC-3'.
[0029] The molecular marker of this embodiment can be used to judge the seed quality of sugar beet germplasm or individuals. When in use, directly take the young leaves of annual plants or other young tissues for DNA extraction and marker detection, and do not need to spend two years on sowing-mother root cultivation-mother root planting-biennial plant traits investigation; biennial plants are also preferred. The young leaves, young inflorescences or other young tissues of the plants are subjected to DNA extraction and marker detection. When used to judge the graininess of the entire germplasm, it can be judged directly based...
specific Embodiment approach 2
[0030] Embodiment 2: The application of the SSR molecular marker BvRE105 for detecting graininess of sugar beet seeds in this embodiment is used to detect graininess of seeds.
specific Embodiment approach 3
[0031] Specific embodiment three: the difference between this embodiment and specific embodiment two is: the specific detection method is:
[0032] 1. Separation and extraction of total DNA from young sugar beet tissues;
[0033] Two, using the DNA obtained in step 1 as a template, using primers BvRE105 S and BvRE105 A to carry out PCR amplification,
[0034] 3. The PCR amplification product obtained in step 2 is separated by polyacrylamide gel electrophoresis, and the result is determined according to the size of the amplification product. If only a band of 219bp is detected, it is determined to be a sugar beet seed single grain; if 207bp is detected The bands of , 231bp and 279bp were determined as multiple sugar beet seeds. Others are the same as in the second embodiment.
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