An endogene-resembling transgene delays the onset of silencing and limits siRNA accumulation

In plants, transgenes are generally more sensitive against RNA silencing than endogenes are. In this study, we generated a transgene that structurally mimicks an endogene. It is composed of endogenous promoter, 5′-UTR, introns, 3′-UTR and terminator elements. Our data revealed that, in contrast to a...

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Main Authors: Dadami, Elena (Author) , Moser, Mirko (Author) , Zwiebel, Michele (Author) , Krczal, Gabi (Author) , Wassenegger, Michael (Author) , Dalakouras, Athanasios (Author)
Format: Article (Journal)
Language:English
Published: 1 February 2013
In: FEBS letters
Year: 2013, Volume: 587, Issue: 6, Pages: 706-710
ISSN:1873-3468
DOI:10.1016/j.febslet.2013.01.045
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.febslet.2013.01.045
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0014579313000902
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Author Notes:Elena Dadami, Mirko Moser, Michele Zwiebel, Gabi Krczal, Michael Wassenegger, Athanasios Dalakouras
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Summary:In plants, transgenes are generally more sensitive against RNA silencing than endogenes are. In this study, we generated a transgene that structurally mimicks an endogene. It is composed of endogenous promoter, 5′-UTR, introns, 3′-UTR and terminator elements. Our data revealed that, in contrast to a conventional transgene, an endogene-resembling transgene was more stably expressed and poorly processed into small RNAs. In addition, although both constructs triggered methylation of homologous DNA sequences at similar levels, the endogene-resembling transgene exhibited significantly delayed onset of local and systemic silencing.
Item Description:Gesehen am 01.06.2021
Physical Description:Online Resource
ISSN:1873-3468
DOI:10.1016/j.febslet.2013.01.045