Method for detecting single nucleotide polymorphism of sheep DAQL gene by using PCR-RFLP and application of method
A single nucleotide polymorphism and detection method technology, which is applied in the field of detection of single nucleotide polymorphism of sheep DAZL gene, can solve the problems of cumbersome operation and high cost, and achieve the purpose of solving false positives, improving accuracy and saving genes The effect of the typing step
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[0053] The method for detecting the single nucleotide polymorphism of sheep DAZL gene by PCR-RFLP includes the detection method of detecting the single nucleotide polymorphism of sheep DAZL gene whose 26750th position is G or A by PCR-RFLP, said detection method Include the following steps:
[0054] S1 Collect the testis tissue from the slaughtered Hu sheep testis, store it in a liquid nitrogen environment, and then grind it into powder. Take 0.1g of the obtained powder and place it in 1000μL DNA extraction buffer, and treat it with proteinase K at 55°C. After being treated with proteinase K at 55°C, the solution after the reaction was treated with Tris-saturated phenol to obtain a DNA extract. The specific steps are:
[0055] a. Add an appropriate amount of liquid nitrogen to the mortar of the testicular tissue frozen in liquid nitrogen environment and undergo DEPC enzyme inactivation and high temperature sterilization, grind it into powder, take 0.1g and add it to 1000 μL DN...
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