title: Multiplex PCR assay for identification of commonly used disarmed Agrobacterium tumefaciens strains.
abstract: The success of Agrobacterium mediated plant transformation depends to a certain extent on appropriate selection of the A. tumefaciens strain for a particular plant species. Many stages in a plant transformation procedure are prone to bacterial contamination with similar antibiotic resistance that may compromise the identity of the A. tumefaciens strain used, in turn adversely affecting success of a transformation experiment. Different primer sets were designed to exploit genetic differences among different strains of A. tumefaciens which are commonly used for plant genetic transformation, to identity confirmation as well as to distinguish them from one another. The primer sets Ach5FtsZ-F/R specific for Ach5 and C58GlyA-F/R specific for C58 were designed on chromosomal DNA while primer sets pTiBo542-F/R and nptI-F/R specific for plasmid pTiBo542 are capable to identify and distinguish these strains from one another. These primer sets when used simultaneously in multiplex PCR, produce a pattern which uniquely identifies all these strains and distinguishes them except for GV3101 and C58C1, which can further be distinguished from each other by rifampicin screening. The multiplex PCR assay and primers being reported here serve as a valuable tool in determining the identity of A. tumefaciens strains at any stage of plant transformation procedure.
authors.affiliation: Department of Biochemistry, PMAS Arid Agriculture University Rawalpindi, Murree Road, 46300 Rawalpindi, Pakistan.
authors.forename: Farah
authors.initials: F
authors.lastname: Deeba
authors.affiliation: Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan.
authors.forename: Muhammad Zeeshan
authors.initials: MZ
authors.lastname: Hyder
authors.affiliation: Department of Biochemistry, PMAS Arid Agriculture University Rawalpindi, Murree Road, 46300 Rawalpindi, Pakistan.
authors.forename: Shahzad Hussain
authors.initials: SH
authors.lastname: Shah
authors.affiliation: Department of Biochemistry, PMAS Arid Agriculture University Rawalpindi, Murree Road, 46300 Rawalpindi, Pakistan.
authors.forename: Syed Muhammad Saqlan
authors.initials: SM
authors.lastname: Naqvi
keywords: Ach5FtsZ; Agrobacterium tumefaciens; C58GlyA; Multiplex PCR; Plant transformation; pTiBo542
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