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Abstracts of presentations at the 40th Congress of the Israeli Phytopathological Society

February 11–12, 2019. Cohen Auditorium, Agriculture Research Organization – the Volcani Center, Bet Dagan, Israel.
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Invited lectures

Phytophthora infestans: the master invader

W.E. Fry

Plant Pathology and Plant-Microbe Biology, School for Integrative Plant Sciences, Cornell University, Ithaca NY, 14853, USA [e-mail: wef1@cornell.edu]

In the USA and in most locations worldwide, major epidemics (pandemics) of late blight caused by Phytophthora infestans have been caused by the introduction of novel genotypes. In the USA (and in most locations around the world), the population structure of P. infestans over time is characterized by a series of genotypes that come to dominance and then disappear from the scene. The exceptions to this situation occur in central Mexico where sexual reproduction has been common for as long as we know, and in parts of northwest Europe where sexual reproduction has been common since the 1990s – again the result of a migration event in the late 1970s. Different genotypes of P. infestanscan have very different phenotypes. Genotypes can be assessed in hours, whereas it takes...

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© Springer Nature B.V. 2019

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