| region-wide analysis of genetic diversity in verticillium dahliae populations infecting olive in southern spain and agricultural factors influencing the distribution and prevalence of vegetative compatibility groups and pathotypes. | severity of verticillium wilt in olive trees in andalusia, southern spain is associated with the spread of a highly virulent, defoliating (d) verticillium dahliae pathotype of vegetative compatibility group 1a (vcg1a) but the extent of this spread and the diversity of the pathogen population have never been documented. vcg typing of 637 v. dahliae isolates from 433 trees in 65 orchards from five olive-growing provinces in andalusia indicated that 78.1% were of vcg1a, 19.8% of vcg2a, 0.6% of vcg2 ... | 2011 | 20942654 |