Analysis of historical specimens determines single origin of Australian potato pest

In a recently published study, Jacqueline Edwards and colleagues used the PCN cyst reference collection held by Crop Health Services, Agriculture Victoria, to examine the genetic variability of Victorian PCN populations. They discovered very little differentiation between the distinct PCN populations, suggesting a single localized introduction into Victoria followed by limited spread to nearby areas. They also discovered that Australian PCN appears genetically distinct from previous populations sampled worldwide.
Source: EurekaAlert,