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Updated: May 6, 2026

Inducible, Cell Type-Specific Expression in Arabidopsis thaliana Through LhGR-Mediated Trans-Activation
Published on: April 19, 2019
Preferential transposition ofAc to linked sites in Arabidopsis
1DNA Plant Technology Corp, 6701 San Pablo Ave, 94608, Oakland, CA, USA.
Abstract:
We have investigated the pattern of transposition of an intact, 4.6-kbAc element inArabidopsis thaliana. Because the trans-acting transposition function (transposase) ofAc is not fully penetrant in Arabidopsis, it is not possible to use it as a diagnostic feature to scoreAc genetically, as has been done in maize and tobacco. Instead, the presence or absence of a transposedAc (trAc) was monitored by Southern blots. Germinal transpositions from the marker SPT::Ac were selected using a streptomycin germination assay and scored for the presence of atrAc. Segregation of thetrAc element and the SPT donor locus was scored in the F2 progeny of the germinal revertants, and the recombination fraction between thetrAc element and SPT was estimated by the method of maximum likelihood. We have found that, as in maize and tobacco, receptor sites fortrAcs in Arabidopsis tend to be linked to theAc donor locus.
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