Search results for "Cryphonectria"

Clonal population structure of the chestnut blight fungus in expanding ranges in southeastern Europe.

2008

Expanding populations are often less genetically diverse at their margins than at the centre of a species' range. Established, older populations of the chestnut blight fungus, Cryphonectria parasitica, are more variable for vegetative compatibility (vc) types than in expanding populations in southeastern Europe where C. parasitica has colonized relatively recently. To test whether vc types represent clones, we genotyped 373 isolates of C. parasitica from southern Italy, Romania, Bulgaria, Macedonia, Greece and Turkey using 11 sequence-characterized amplified region (SCAR) markers. Ten SCAR loci and six vegetative incompatibility (vic) loci were polymorphic in these samples. These population…

Characterization of Cryphonectria parasitica populations in Southern Italy

2005

Chestnut woods on madonie mountains (Sicily, Italy): Reasons for abandonment and possibilities of recovery

1999

The status of the chestnut woods on the Madonie Mountains (Sicily, PA) was investigated. During the last years, the surface of chestnut woods on the Madonie Mountains has been decreasing as well as their utilisation has changed because of chestnut blight (Cryphonectria parasitica) attacks. Therefore, three plots located in the Madonie mountains were studied to investigate the effects of chestnut blight attack. The first results here exposed stress the strong relations between the entity of chestnut blight attack and the density and age of the coppice.