Ksenia Posted November 27, 2013 Share Posted November 27, 2013 Dear all,I am extracting RNA from flat worms (Gyrodactylus salaris) with Trizol-based method, but I do not get any RNA, or RNA amounts are very low (the control, fish tissue samples are extracted normally).Alive worms were frozen in liquid nitrogen in a drop of water (40 microliters). The number of worms per sample is around 30, and they are quite small (0.1 miliimeters). From this fresh-frozen samples I get nothing, whereas I was able to extract RNA from the same number of RNA-later stored worms previously.I tried the standard protocol; additionally homogenizing the frozen drop of water to powder with immediate adding of Trizol; letting the samples to sit longer in Trizol for better lyzation; elongating the RNA precipitation step, but nothing seems to work. Does anybody have an experience with extracting from very small initial amounts of tissue or otherwise may suggest something?I will appreciate your help!! Link to comment Share on other sites More sharing options...
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