Transcription: Gene silencing in worms and fungi

  title={Transcription: Gene silencing in worms and fungi},
  author={Caterina Catalanotto and Gianluca Azzalin and Giuseppe Macino and Carlo Cogoni},
The introduction into cells of foreign nucleic acid molecules can induce sequence-specific gene silencing in some organisms. Here we show that two distantly related organisms, the nematode Caenorhabditis elegans and the fungus Neurospora crassa, which have quite different mechanisms of gene silencing, both use a similar protein to control the process. This suggests that they may share an ancestral mechanism that evolved to protect the genome against invasion by foreign DNA. 

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