Taxonomy of Phytophthora megasperma f.sp. glycinea
In Australia studies were carried out to investigate the genetic relationships among Australian and North American isolates of Phytophthora megasperma f.sp. glycinea (EPPO A2 organism). Five Australian isolates and five North American isolates of the fungus were assessed by multicopy DNA probes.
It was found that the geographically separated isolates have close relationships.
The authors suggest that the Australian isolates are derived from recent ancestors common to the North American isolates.
Sources
Whisson, S.C.; Maclean, D.J.; Manners, J.M.; Irwin, J.A.G. (1992) Genetic relationships among Australian and North American isolates of Phytophthora megasperma f.sp. glycinea assessed by multicopy DNA probes.
Phytopathology 82, 863-868.