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Genetic and genomic analysis of small RNA pathways in nematodes

Small noncoding RNAs, including microRNAs (miRNAs), piwi-interacting RNAs (piRNAs), and endogenous small-interfering RNAs (endo-siRNAs), regulate developmental and defense pathways in animals. While many small RNA silencing protein cofactors have been identified, much more is to be learned from a dynamic and quantitative perspective to reveal the underlying mechanisms and designing principles of each pathway. In this dissertation, I present studies that examine the temporal dynamics of small RNA pathways - one from an evolutionary time scale among the nematode species, and one from finely staged Caenorabditis elegans during the first larval stage. I also describe works identifying new cofactors functions in the miRNA pathway, potentially through regulating the spatial dynamics of the miRNA silencing complex.

Identiferoai:union.ndltd.org:harvard.edu/oai:dash.harvard.edu:1/11169801
Date15 October 2013
CreatorsShi, Zhen
ContributorsRuvkun, Gary B.
PublisherHarvard University
Source SetsHarvard University
Languageen_US
Detected LanguageEnglish
TypeThesis or Dissertation
Rightsopen

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