Preliminary Results on the Genetic Structure of Heterobasidion annosum in White Fir (Abies concolor) Root Decay Centers : Root and Butt Rots

Uppsala

International Union of Forest Research Organizations, Swedish University of Agricultural Sciences

1994

S. 227-232

6 Lit. Ang.

Bandaufführung

13462

73642

Our study has the following objectives: -1. Determine the genetic structure of the Heterobasidion annosum ISG S in true fir by clonal analysis and mating allele distribution. -2. Screen isolates for virulence through a combination of greenhouse and field inoculation studies. -3. Determine whether adjacent clones are related through di-mon mating events. -4. Develop fingerprinting techniques to facilitate the identification of clones, to characterize the genotypic composition of heterokaryons, and to provide a bank of genetic markers for future genetic studies. This is a report on preliminary results regarding point 1.