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Patterns of genetic diversification in the invasive hybrid plant pathogen Phytophthora x alni and its parental species P. uniformis

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F20%3A43918334" target="_blank" >RIV/62156489:43410/20:43918334 - isvavai.cz</a>

  • Alternative codes found

    RIV/00027073:_____/20:N0000020

  • Result on the web

    <a href="https://doi.org/10.1094/PHYTO-12-19-0475-R" target="_blank" >https://doi.org/10.1094/PHYTO-12-19-0475-R</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1094/PHYTO-12-19-0475-R" target="_blank" >10.1094/PHYTO-12-19-0475-R</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Patterns of genetic diversification in the invasive hybrid plant pathogen Phytophthora x alni and its parental species P. uniformis

  • Original language description

    In pathogenic fungi and oomycetes, interspecific hybridization may lead to the formation of new species having a greater impact on natural ecosystems than the parental species. From the early 1990s, a severe alder (Alnus spp.) decline due to an unknown Phytophthora species was observed in several European countries. Genetic analyses revealed that the disease was caused by the triploid hybrid P. x alni, which originated in Europe from the hybridization of P. uniformis and P. x multiformis. Here, we investigated the population structure of P. x alni (158 isolates) and P. uniformis (85 isolates) in several European countries using microsatellite markers. Our analyses confirmed the genetic structure previously observed in other European populations, with P. uniformis populations consisting of at most two multilocus genotypes (MLGs) and P. x alni populations dominated by MLG Pxa-1. The genetic structure of P. x alni populations in the Czech Republic, Hungary and Sweden seemed to reflect the physical isolation of river systems. Most rare P. x alni MLGs showed a loss of heterozygosity (LOH) at one or a few microsatellite loci compared with other MLGs. This LOH may allow a stabilization within the P. x alni genome or a rapid adaptation to stress situations. Alternatively, alleles may be lost because of random genetic drift in small, isolated populations, with no effect on fitness of P. x alni. Additional studies would be necessary to confirm these patterns of population diversification and to better understand the factors driving it.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    40102 - Forestry

Result continuities

  • Project

    <a href="/en/project/EF15_003%2F0000453" target="_blank" >EF15_003/0000453: Phytophthora Research Centre</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Phytopathology

  • ISSN

    0031-949X

  • e-ISSN

  • Volume of the periodical

    110

  • Issue of the periodical within the volume

    12

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    11

  • Pages from-to

    1959-1969

  • UT code for WoS article

    000598090900010

  • EID of the result in the Scopus database

    2-s2.0-85091200609