Development of a simple molecular tool to resolve phylogenetic relationships among Fusarium oxysporum f.sp. dianthi isolates

Abstract

Fusarium wilt, caused by Fusarium oxysporum f. sp. dianthi (Fod), is the most important carnation disease worldwide. Fod population show a high level of diversity, that includes the existence of 10 pathogenic races and virulence groups (molecularly distinguishable) among isolates of the same race. The objective of the present study was to clarify the phylogenetic relationship among Fod isolates, and to develop a tool to quickly analyze population structure in order to select suitable resistant carnation cultivars for specific growing areas.