A Novel Direct PCR Lysis Buffer Can Improve PCR from Meat Matrices
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Molecular technologies based on PCR have been widely used in many biological analysis fields, especially for genetic analysis and DNA barcoding. In this study, a rapid DNA lysis liquid was formulated without any purification step from fresh and processed meat, suitable for conventional PCR amplification. Three different lysis liquid formulas were designed for selection and further optimization for direct PCR and absorbance spectra; DNA concentration and performance in PCR were used to assess the effect of each formula. The results indicated that the formula containing NaOH, EDTA, SDS, Tween 20, and Tris-HCl achieved the best results, and the optimized formula met the need of practical PCR applications. The protocol provided a rapid lysis buffer for DNA replication from any meat samples. The performance of the final formula resulted in high DNA lysis efficiencies for all the tested meat samples and the PCR amplification efficiencies were similar to isolated DNA template using a commercial kit. The whole process can be completed in 30 min. Therefore, this study provides a simple, alternative, cost-effective fast solution for meat molecular analysis based on DNA.
KeywordsMeat samples Lysis liquid Direct PCR DNA amplification
We gratefully acknowledge financial support from the National Natural Science Foundation of China (No. 31672394), the Science and Technology Department of Zhejiang for public welfare Technology Application Research (2017C32081), and the Major State Basic Research Development Program of China (2017YFD0501904).
Compliance with Ethical Standards
Conflict of Interest
Feng Guan declares that he has no conflict of interest. Yuting Jin declares that she has no conflict of interest. Jin Zhao declares that he has no conflict of interest. Juntao Ai declares that she has no conflict of interest. Yuanyuan Luo declares that she has no conflict of interest.
No animal or human subject was used in the work related to this manuscript.
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