NDLI: Development of analytical tools for evaluating the effect of T-DNA chimeric integration on transgene expression in vegetatively propagated plants

Content Provider	Springer Nature Link
Author	Dalla Costa, Lorenza Pinto Sintra, Ana L. Campa, Manuela Poletti, Valenti Martinelli, Lucia Maly, Mickael
Copyright Year	2014
Abstract	T-DNA chimeric integration and unexpected transgene expression are relevant constraints affecting transgenic plants. This study aims to properly investigate the occurrence of these events and to what extent they may be related. The final goal is to develop an effective screening tool for earlier selection of proper transgenic lines. A strategy based on qPCR and Southern blot was adopted for evaluating gus and Egfp chimerism degree in transgenic Vitis vinifera cv ‘Chardonnay’. Of nine transgenic lines, one had a very high chimerism value, which was shown to be associated with minimal transgene expression. The evaluation of the gus gene over time and space on a line selected as a model showed that transgene’s chimerism was stable and uniform throughout plant tissues whilst its expression was highly variable. Transgene chimerism issue was investigated in detail and useful hints were given for selecting the most favorable transgenic plants and for proper planning of in vitro and ex vitro experiments.
Starting Page	471
Ending Page	484
Page Count	14
File Format	PDF
ISSN	01676857
Journal	Plant Cell, Tissue and Organ Culture (PCTOC)
Volume Number	118
Issue Number	3
e-ISSN	15735044
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-05-08
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chimerism Genetically modified plants Reporter genes Transgene expression Vitis vinifera Plant Sciences Plant Physiology Plant Genetics & Genomics Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Horticulture

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