Isolation of high quality nucleic acids from plant tissues rich in polysaccharides and polyphenols is often difficult. The presence of these substances can affect the quality and/or quantity of the nucleic acids isolated. Here, we describe a rapid and efficient nucleic acids extraction protocol that in contrast to other methods tested, effectively purify high quality nucleic acids from plant tissues rich in polysaccharides and polyphenolic compounds such as different grape tissues and fruit tissue of fruit trees. The nucleic acids isolated with this protocol were successfully used for many functional genomic based experiments including polymerase chain reaction, reverse transcription polymerase chain reaction (RT-PCR), cloning, and semiquantitative RT-PCR.
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