Abstract
RNA silencing plays a critical role in diverse biological processes in plants including growth, development, and responses to abiotic and biotic stresses. RNA silencing is guided by small non-coding RNAs (sRNAs) with the length of 21–24 nucleotides (nt) that are loaded into Argonaute (AGO) to repress expression of target loci and transcripts through transcriptional or posttranscriptional gene silencing mechanisms. Identification and quantitative characterization of sRNAs are crucial steps toward appreciation of their functions in biology. Here, we developed a step-by-step protocol to precisely illustrate the process of cloning of sRNA libraries and correspondingly computational analysis of the recovered sRNAs. This protocol can be used in all kinds of organisms, including Arabidopsis, and is compatible with various high-throughput sequence technologies such as Illumina Hiseq. Thus, we wish that this protocol represents an accurate way to identify and quantify sRNAs in vivo.
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Acknowledgments
The work in the X. Zhang’s laboratory was supported by the NIH grant R01GM132401. D.S. was supported by the China Scholar Council Fellowship.
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Sun, D., Ma, Z., Zhu, J., Zhang, X. (2021). Identification and Quantification of Small RNAs. In: Sanchez-Serrano, J.J., Salinas, J. (eds) Arabidopsis Protocols . Methods in Molecular Biology, vol 2200. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-0880-7_11
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DOI: https://doi.org/10.1007/978-1-0716-0880-7_11
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