Selectable marker replacement in Saccharomyces cerevisiae

Marc Vidal, Richard F. Gaber*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Selectable markers integrated by the ‘gamma’ deletion method (Sikorski and Hieter, 1989) can be efficiently replaced in vivo with other markers by transformation with homologous plasmids. Transformation frequencies in experiments designed to replace original selectable markers with an alternate marker were high and molecular analysis confirmed that all transformants that exhibited the expected phenotypes (loss of the original prototrophy and gain of the alternate prototrophy) resulted from homologous recombination between plasmid sequences at the target locus. This technique involves no plasmid construction and greatly facilitates the generation of yeast cells containing multiple gene disruptions.

Original languageEnglish (US)
Pages (from-to)141-149
Number of pages9
Issue number2
StatePublished - Feb 1994


  • Saccharomyces cerevisiae
  • selectable marker
  • transformation

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Genetics


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