ArticleTransgenic research2001
FLP/FRT-mediated restoration of normal phenotypes and clonal sectors formation in rolC transgenic tobacco.
Article in Transgenic research, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Selectable Markers to Marker-Free Selection in Rice.Molecular biotechnology · 2022Review
- Generation of a selectable marker free, highly expressed single copy locus as landing pad for transgene stacking in sugarcane.Plant molecular biology · 2019Article
- Improved FLP recombinase, FLPe, efficiently removes marker gene from transgene locus developed by Cre-lox mediated site-specific gene integration in rice.Molecular biotechnology · 2011Article
- Expression of active Streptomyces phage phiC31 integrase in transgenic wheat plants.Plant cell reports · 2008Article
- Site-specific recombination in Zea mays.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2005Article
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Authors and funding
3 authors.
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Abstract
Site-specific recombination systems have been shown to excise transgene DNA sequences positioned between their cognate target sites, and thus be used to generate clonal sectors in transgenic plants. Here we characterized clonal sectors derived from genetic reversion of rolC (A. rhizogenes)--induced vegetative and reproductive phenotypes, mediated by FLP recombinase from S. cerevisiae, in tobacco. The constitutive expression of rolC induces pleiotropic effects including reduced apical dominance and plant height, lanceolate and pale green leaves and small, male-sterile flowers. Two transgenic male-sterile tobacco lines (N. tabacum, Samsun NN) expressing a 35sP-rolC gene construct flanked by two FRT (FLP recombinase target) sites, were cross-pollinated with pollen from a constitutive 35sP-FLP expressing line. Three main phenotypes were generated in result of recombinase-mediated excision of the 35sP-rolC locus in the F1 (FLP x FRT-35sP-rolC-FRT) hybrid progenies: (a) restoration of male fertility, associated with reversion to normal leaf phenotypes prior to flower bud formation, (b) development of normal and fertile lateral shoot sectors on the background of rolC-type plants, (c) restoration of partially fertile flowers, associated with display of peripheral normal leaf sectors surrounding rolC-type inner-leaf tissues, consistent with periclinal chimeras. These results, supported by DNA molecular analysis, indicate that site-specific recombination might be used as a relatively efficient tool for generation of transgenic periclinal chimeric plants.
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