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TranscriptomicsProduction of artificial piRNAs in flies and mice
In animals, a discrete class of small RNAs, the piwi-interacting RNAs (piRNAs), guard germ cell genomes against the activity of mobile genetic elements. piRNAs are generated, via an unknown mechanism, from apparently single-stranded precursors that arise from discrete genomic loci, termed piRNA clus...
ORGANISM(S): Mus musculus 
2012-01-01 | E-GEOD-32435 | biostudies-arrayexpress
TranscriptomicsProbing the initiation and effector phases of the somatic piRNA pathway in Drosophila
Combining RNAi in cultured cells and analysis of mutant animals, we probed roles of known piRNA pathway components in the initiation and effector phases of transposon silencing. total RNA and RNA associated with Piwi was isolated and size-fractionated by PAGE into 19-29nt. These were processed and s...
ORGANISM(S): Drosophila melanogaster 
2010-10-25 | E-GEOD-24108 | biostudies-arrayexpress
TranscriptomicsA genome-wide RNAi screen draws a genetic framework for transposon control and primary piRNA biogenesis in Drosophila
A large fraction of our genome consists of mobile genetic elements. Governing transposons in germ cells is critically important, and failure to do so compromises genome integrity, leading to sterility. In animals, the piRNA pathway is the key to transposon constraint, yet the precise molecular detai...
ORGANISM(S): Drosophila melanogaster 
2013-05-09 | E-GEOD-46009 | biostudies-arrayexpress
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