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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

RNA interference for the organizer-specific gene Xlim-1 in Xenopus embryos.

Double-stranded RNA (dsRNA) interferes with gene expression in various species, a phenomenon known as RNA interference (RNAi). We show here that RNAi is also effective in modifying gene expression in Xenopus embryos. First, expression of an exogenous luciferase gene as a reporter in embryos was reduced by coinjection with dsRNA corresponding to the luciferase gene. Next, injection of dsRNA for Xlim-1, a homeobox gene suggested to be involved in Spemann organizer functions, reduced the endogenous level of Xlim-1 mRNA and produced embryos with reduced eyes or anterior truncation at high efficiency. In addition, injection of an antisense expression construct of Xlim-1 elicited phenotypes very similar to those of Xlim-1 dsRNA-injected embryos. These results indicate the effectiveness of RNAi for loss of function studies in Xenopus embryos, and the importance of Xlim-1 in head formation.[1]


  1. RNA interference for the organizer-specific gene Xlim-1 in Xenopus embryos. Nakano, H., Amemiya, S., Shiokawa, K., Taira, M. Biochem. Biophys. Res. Commun. (2000) [Pubmed]
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