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Biochemical And Computational Characterization Of Small Regulatory Rnas In The Eastern Oyster, Crassostrea Virginica, Isabelle Townsend
Biochemical And Computational Characterization Of Small Regulatory Rnas In The Eastern Oyster, Crassostrea Virginica, Isabelle Townsend
Honors Theses
RNA interference (RNAi) is a process by which gene expression is regulated using small non-coding RNAs (ncRNAs). Three classes of ncRNAs, including micro-RNA (miRNA), short-interfering RNA (siRNA), and Piwi-interacting RNA (piRNA), are readily distinguishable in eukaryotic systems based on unique characteristics such as read sizes, overlap signatures, and mode of biogenesis. In this study, a method for purification of small RNAs was explored in the eastern oyster, Crassostrea virginica. This method involved the use of Sepharose beads for anion exchange chromatography to enhance purification of Argonaute associated small RNAs. Following RNA extraction and purification, small RNA libraries were created …
Insecticidal Rna Interference, Thinking Beyond Long Dsrna, Alex S. Flynt
Insecticidal Rna Interference, Thinking Beyond Long Dsrna, Alex S. Flynt
Faculty Publications
Over 20 years ago double-stranded RNA (dsRNA) was described as the trigger of RNAi interference (RNAi)-based gene silencing. This paradigm has held since, especially for insect biopesticide technologies where dsRNAs, similar to those described in 1998, are used to inhibit gene expression. In the intervening years, investigation of RNAi pathways has revealed the small RNA effectors of RNAi are diverse and rapidly evolving. The rich biology of insect small RNAs suggests potential to use multiple RNAi modes for manipulating gene expression. By exploiting different RNAi pathways, the menu of options for pest control can be expanded and could lead to …