Forest Pathology (2000) 30, 221-230

R. Kasanen, J. Kaitera and J. Hantula (2000)
The genetic composition of Peridermium pini and Cronartium flaccidum cankers on Scots pine as revealed by two multi-allelic loci
Forest Pathology 30 (4), 221-230
Abstract: Two highly variable DNA markers were developed for Cronartium flaccidum and Peridermium pini. The markers were used to study the genetic composition of aecia of single cankers of both species. All five cankers of P. pini were homogenic and contained only one allele in both loci studied, indicating that the aecia were homozygous. The homogeneity of the cankers suggested that either genetic exchange via spermatization does not occur in autoecious P. pini populations, or that the pairing is homothallic. Two C. flaccidum cankers contained heterozygous loci. However, one canker contained genetically variable aecia indicating heterothallism, whereas the aecia of the other canker were homogenic.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Juha Kaitera, Jarkko Hantula

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cronartium flaccidum	Pine (Pinus)	Finland