Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
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TY - JOUR
T1 - Examining Phenotypic Traits Contributing to the Spread in Northern European Potato Crops of EU_41_A2, a New Clonal Lineage of Phytophthora infestans
AU - Puidet, Britt
AU - Mabon, Roman
AU - Guibert, Michele
AU - Kiiker, Riinu
AU - Soonvald, Liina
AU - Hong Le, Vinh
AU - Eikemo, Håvard
AU - Dewaegeneire, Pauline
AU - Saubeau, Guillaume
AU - Chatot, Catherine
AU - Aurousseau, Frédérique
AU - Cooke, David E.L.
AU - Lees, Alison
AU - Abuley, Isaac Kwesi
AU - Hansen, Jens Grønbech
AU - Corbiere, Roselyne
AU - Leclerc, Melen
AU - Andrivon, Didier
PY - 2022/2
Y1 - 2022/2
N2 - Until recently, genotypes of Phytophthora infestans were regionally distributed in Europe, with populations in western Europe being dominated by clonal lineages and those in northern Europe being genetically diverse due to frequent sexual reproduction. However, since 2013, a new clonal lineage (EU_41_A2) has successfully established itself and expanded in the sexually recombining P. infestans populations of northern Europe. The objective of this study was to study phenotypic traits of the new clonal lineage of P. infestans, which may explain its successful establishment and expansion within sexually recombining populations. Fungicide sensitivity, aggressiveness and virulence profiles of isolates of EU_41_A2 were analyzed and compared to those of the local sexual populations from Denmark, Norway, and Estonia. None of the phenotypic data obtained from the isolates collected from Denmark, Estonia and Norway independently explained the invasive success of EU_41_A2 within sexual Nordic populations. Therefore, we hypothesize that the expansion of this new genotype could result from a combination of fitness traits and more favorable environmental conditions that have emerged due to climate change.
AB - Until recently, genotypes of Phytophthora infestans were regionally distributed in Europe, with populations in western Europe being dominated by clonal lineages and those in northern Europe being genetically diverse due to frequent sexual reproduction. However, since 2013, a new clonal lineage (EU_41_A2) has successfully established itself and expanded in the sexually recombining P. infestans populations of northern Europe. The objective of this study was to study phenotypic traits of the new clonal lineage of P. infestans, which may explain its successful establishment and expansion within sexually recombining populations. Fungicide sensitivity, aggressiveness and virulence profiles of isolates of EU_41_A2 were analyzed and compared to those of the local sexual populations from Denmark, Norway, and Estonia. None of the phenotypic data obtained from the isolates collected from Denmark, Estonia and Norway independently explained the invasive success of EU_41_A2 within sexual Nordic populations. Therefore, we hypothesize that the expansion of this new genotype could result from a combination of fitness traits and more favorable environmental conditions that have emerged due to climate change.
KW - Solanum tuberosum
KW - clonal lineage
KW - fungal pathogens
KW - late blight
KW - oomycetes
KW - phenotype
KW - sexual reproduction
U2 - 10.1094/PHYTO-12-20-0542-R
DO - 10.1094/PHYTO-12-20-0542-R
M3 - Journal article
C2 - 34080915
VL - 112
SP - 414
EP - 421
JO - Phytopathology
JF - Phytopathology
SN - 0031-949X
IS - 2
ER -