مرکز منطقه ای اطلاع رساني علوم و فناوري -

چكيده لاتين :

Thirty-eight isolates of Fusarium solani from potato tubers originated from Ardabil, Tehran and Hamadan Provinces of Iran, were grouped in 15 Vegetative Compatible Groups (VCGs) using nitrate nonutilising (nit) mutants. Within the 15 VCGs, seven groups contained one member and the other eight groups had at least two members each. To discover any possible relationship between the Iranian VCGs determined in this research and those from New Zealand, these mutants were paired with nit mutants of 22 isolates from five plant species in New Zealand. Therefore, out of 60 studied isolates 24 VCGs were identified. The results revealed high genetic divergence among isolates studied. There was no correlation between VCGs and virulence; however, there was some correlation between VCGs and geographical origin of isolates.