Abstract
The bacteriophage (phage) DNA extraction methods for genomics analysis is a critical and time-consuming process. Hence, a rapid and cost-effective method for DNA extraction of phages is favorable for phage biologists. In the present study, a cost-effective, simple and rapid procedure for phage genome extraction in less than 10 min is introduced. Highly concentrated phage lysates were prepared using acetone precipitation followed by extraction using various methods such as commercial kits, TES lysis buffer, potassium iodide, and sodium iodide. The quality of the extracted DNA was analyzed by agarose gel electrophoresis and UV absorbance of DNA at 260 and 280 nm. Finally, the extracted DNA was subjected to restriction digestion and next-generation sequencing to approve the efficiency of the method. Based on the time, cost, and quality of obtained DNA, the acetone precipitation of phages and extraction by potassium iodide or sodium iodide method was determined to be the best method for phage DNA extraction tested in this study. Moreover, the extracted genomic DNA using this method is suitable for phage genomic analysis such as restriction enzyme studies, preparation of DNA library, and also next-generation sequencing.
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