"Vegetative compatibility is controlled by one too many nuclear genes that limit the completion of hyphal anastomosis between colonies to people who belong to an equivalent vegetative compatibility
group (usually abbreviated to the v-c group). Members of a v-c group possess an equivalent vegetative compatibility
allele. The knowledge on vegetative compatibility
groups (VCGs) is of particular interest in asexual fungi as they subdivide the population into groups that will exchange genetic information via heterokaryosis and therefore the parasexual cycle. Among the techniques utilized in studies about vegetative compatibility
groups, the obtainment of nit mutants is apparent. lindemuthianum made it possible to determine the vegetative compatibility
groups which such a way was capable prove genetic variability."
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