Post-transcriptional gene silencing across kingdoms.
Post-transcriptional gene silencing (PTGS) as a consequence of the introduction of either transgenes or double-stranded RNA molecules has been found to occur in a number of species. In the past year, studies in different systems have greatly enhanced our understanding of the molecular mechanisms of these phenomena. The ubiquitous presence of PTGS in both the plant and animal kingdoms and the finding of common genetic mechanisms suggest that PTGS is a universal gene-regulation system fundamental in biological processes such as protection against viruses and transposons.
Cogoni
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Dipartimento di Biotecnologie Cellulari ed Ematologia, Sezione di Genetica Molecolare, Universita di Roma La Sapienza, Viale Regina Elena, 324, 00161 Roma, Italy. carlo@bce.med.uniroma1.it
Macino
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D000828:Animal Population Groups / Q000235:genetics; D000818:Animals; D005075:Biological Evolution; D020868:Gene Silencing; D016678:Genome; D008957:Models, Genetic; D010944:Plants / Q000235:genetics; D012323:RNA Processing, Post-Transcriptional; D012330:RNA, Double-Stranded; D012367:RNA, Viral; D019076:Transgenes
D012330:RNA, Double-Stranded; D012367:RNA, Viral