The maize Activator/Dissociation system is functional in hexaploid wheat through successive generations

A - Papers appearing in refereed journals

Pastori, G. M., Huttly, A. K., West, J., Sparks, C. A., Pieters, A., Luna, C. M., Jones, H. D. and Foyer, C. H. 2007. The maize Activator/Dissociation system is functional in hexaploid wheat through successive generations. Functional Plant Biology. 34 (9), pp. 835-843.

AuthorsPastori, G. M., Huttly, A. K., West, J., Sparks, C. A., Pieters, A., Luna, C. M., Jones, H. D. and Foyer, C. H.
Abstract

The aim of the present study was to provide useful background information and evidence of the functionality of the maize Activator/Dissociation (Ac/Ds) system in hexaploid wheat. Two transgenic parental wheat lines, one harbouring the immobilised Ac element (iAc) and the other the Ds element (pUbi[Ds-uidA]bar), were crossed. Transient GUS assays confirmed that the iAc transposase is active in hexaploid wheat. Selected F1 and F2 lines were analysed by PCR using primers specific to Ac, uidA and bar genes. The primer pair Ubi/bar-tag was used to detect excision of the Ds-uidA sequence, which occurred at a frequency of 39% in the F1 generation. Lines free of Ac and showing evidence of Ds excision were subject to Southern analysis, which indicated that at least one transposition event might have occurred in these lines. Although more evidence is required to unequivocally support the reintegration of the Ds element in the wheat genome, the evidence presented here nevertheless demonstrates the effectiveness and potential value of using this system to tag genes in wheat.

Year of Publication2007
JournalFunctional Plant Biology
Journal citation34 (9), pp. 835-843
Digital Object Identifier (DOI)doi:10.1071/FP07112
Open accessPublished as non-open access
Funder project or codeCentre for Crop Genetic Improvement (CGI)
Development and application of cereal transformation technologies
Biotechnology resources for arable crop transformation (BRACT)
Use of maize and rice Mar sequences to stabilise the expression of transgenes in wheat
Publisher's version
Copyright license
Publisher copyright
Output statusPublished
Publication dates
Online30 Aug 2007
Publication process dates
Accepted03 Jul 2007
ISSN1445-4408
PublisherCSIRO Publishing

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