Abstract
Gibberella fujikuroi (conidial stage Fusarium moniliforme) is a pathogen of many crop species. It exhibits a tremendous cultural and pathogenic variability in the field through sexual and parasexual cycles. This report investigates the inheritance of mating type, colony color, colony morphology, and colony growth rate. The tetrad and random ascospore analysis of variants of these traits, obtained from nature and through mutagenesis, confirm that they are controlled by single nuclear genes. The genes for colony morphology and colony growth rate were linked whereas other genes show independent assortment. These traits can be used as genetic markers in the infection process of this fungus.
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