Plant Molecular Biology

, Volume 53, Issue 1, pp 247–259

An Arabidopsis thaliana T-DNA mutagenized population (GABI-Kat) for flanking sequence tag-based reverse genetics

  • Mario G. Rosso
  • Yong Li
  • Nicolai Strizhov
  • Bernd Reiss
  • Koen Dekker
  • Bernd Weisshaar
Article

DOI: 10.1023/B:PLAN.0000009297.37235.4a

Cite this article as:
Rosso, M.G., Li, Y., Strizhov, N. et al. Plant Mol Biol (2003) 53: 247. doi:10.1023/B:PLAN.0000009297.37235.4a

Abstract

The GABI-Kat population of T-DNA mutagenized Arabidopsis thaliana lines with sequence-characterized insertion sites is used extensively for efficient progress in plant functional genomics. Here we provide details about the establishment of the material, demonstrate the population's functionality and discuss results from quality control studies. T-DNA insertion mutants of the accession Columbia (Col-0) were created by Agrobacterium tumefaciens-mediated transformation. To allow selection of transformed plants under greenhouse conditions, a sulfadiazine resistance marker was employed. DNA from leaves of T1 plants was extracted and used as a template for PCR-based amplification of DNA fragments spanning insertion site borders. After sequencing, the data were placed in a flanking sequence tag (FST) database describing which mutant allele was present in which line. Analysis of the distribution of T-DNA insertions revealed a clear bias towards intergenic regions. Insertion sites appeared more frequent in regions in front of the ATG and after STOP codons of predicted genes. Segregation analysis for sulfadiazine resistance showed that 62% of the transformants contain an insertion at only one genetic locus. In quality control studies with gene-specific primers in combination with T-DNA primers, 76% of insertions could be confirmed. Finally, the functionality of the GABI-Kat population was demonstrated by exemplary confirmation of several new transparent testa alleles, as well as a number of other mutants, which were identified on the basis of the FST data.

FSTgene functioninsertion mutagenesisknock-outreverse genetics

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Mario G. Rosso
    • 1
  • Yong Li
    • 1
  • Nicolai Strizhov
    • 2
  • Bernd Reiss
    • 1
  • Koen Dekker
    • 1
  • Bernd Weisshaar
    • 3
  1. 1.GABI-Kat, Max Planck Institute for Plant Breeding ResearchKölnGermany
  2. 2.Max Planck Unit for Structural Molecular BiologyHamburgGermany
  3. 3.Institute for Genome ResearchBielefeld UniversityBielefeldGermany