| origin and genetic diversity of western european populations of the potato cyst nematode (globodera pallida) inferred from mitochondrial sequences and microsatellite loci. | native to south america, the potato cyst nematode globodera pallida is one of the principal pests of andean potato crops and is also an important global pest following its introduction to europe, africa, north america, asia and oceania. building on earlier work showing a clear south to north phylogeographic pattern in peruvian populations, we have been able to identify the origin of western european populations with high accuracy. they are all derived from a single restricted area in the extreme ... | 2008 | 18410291 |