Summary
A high level of vegetative compatibility (vc) diversity exists among Cryphonectria parasitica isolates in the Great Smoky Mountains National Park, potentially restricting hypovirus spread. Researchers analyzed 159 cankers from 139 American chestnut trees along hiking trails in Tennessee and North Carolina over two years (2010-2011). While C. parasitica was recovered from nearly all samples, only one isolate showed signs of hypovirulence, suggesting naturally-occurring hypoviruses are rare in this region.
Citation
Double, M. L., MacDonald, W. L., & Taylor, G. M. (2014). EVALUATION OF CRYPHONECTRIA PARASITICA ISOLATES COLLECTED FROM THE GREAT SMOKY MOUNTAINS NATIONAL PARK. Acta Horticulturae, (1019), 85–89. https://doi.org/10.17660/actahortic.2014.1019.13