Research article - Peer-reviewed, 2013
What is the evidence for sexual reproduction of Phytophthora infestans in Europe?
Yuen, Jonathan; Andersson, BjörnAbstract
The biology of late blight of potato and tomato, caused by Phytophthora infestans, changed when sexual reproduction by the pathogen became possible in many parts of the world, including Europe. In northern Europe, especially Scandinavia, there is increasing evidence that the pathogen is reproducing sexually on a regular basis, although in other regions further south or to the west it appears to reproduce primarily in a clonal manner. The presence of both mating types, the production of viable oospores, and observations of fields with soilborne sources of inoculum are consistent with sexual reproduction. Studies with different marker systems have revealed a population structure without any dominating clonal lineages in Scandinavia, and that is most easily explained by sexual reproduction. Phytophthora infestans recovered from the soil can also be linked to parental genotypes using likelihood-based methods when codominant markers are used. A synthesis of all the available data points to a second centre of sexual reproduction in northern Europe.Keywords
asexual reproduction; blight; oospores; potato; sexual reproductionPublished in
Plant Pathology2013, volume: 62, number: 3, pages: 485-491
Publisher: WILEY-BLACKWELL
Authors' information
Swedish University of Agricultural Sciences, Department of Forest Mycology and Pathology
Swedish University of Agricultural Sciences, Department of Forest Mycology and Pathology
UKÄ Subject classification
Agricultural Science
Publication Identifiers
DOI: https://doi.org/10.1111/j.1365-3059.2012.02685.x
URI (permanent link to this page)
https://res.slu.se/id/publ/51129