Abstract
DNA extraction is usually the first step to perform molecular studies. This process can be nonviable due to genomic DNA (gDNA) extraction commercial kits prices. Furthermore, available DNA extraction protocols generally have high specificity, limiting their use to specific sources of biological material. In order to reduce costs, optimize time and laboratory logistics, besides to demonstrate a versatile protocol, the present study worked on an efficient DNA extraction protocol from somatic and non-somatic cells, using biological material from sheep as a model. For that, gDNA was extracted from whole blood, spermatozoa, and hair bulb cells, collected from three adult sheep, transported at 5ºC and stored at -20ºC until lab procedures. After extraction, gDNA concentration and purity were evaluated in a nano spectrophotometer. gDNA concentration from whole blood was greater (p < 0.05) than extracted from hair bulb cells, which in turn was superior (p < 0.05) than in spermatozoa. Also, gDNA from whole blood and, followed by, sperm showed greater (p < 0.05) purity when compared to gDNA of hair bulb cells. Adapting a gDNA extraction protocol, originally developed for bovine whole blood, enabled to obtain and isolate gDNA in different nucleated sheep cells
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