Mutagenesis via insertional- or restriction enzyme-mediated-integration (REMI) as a tool to tag pathogenicity related genes in plant pathogenic fungi.

Random insertional mutagenesis is a powerful tool to investigate the molecular basis of most genetically determined processes, for example in pathogenic fungi. An improved version of this method is the insertional mutagenesis via restriction enzyme mediated integration (REMI). Transformation efficiency and mode of vector integration are species dependent and further influenced by vector conformation, restriction enzyme activity, and transformation protocol. An overview is given, covering the mutants and already identified genes obtained after REMI mutagenesis. An outlook describes the future developments in the field.