Microsatellite markers reveal two admixed genetic groups and an ongoing displacement within the French population of the invasive plant pathogen Phytophthora infestans

Autor: Roselyne Corbière, Josselin Montarry, François Delmotte, Gladys Mialdea, Isabelle Glais, Didier Andrivon
Přispěvatelé: Génétique et évolution des interactions hôtes-parasites, Département génétique, interactions et évolution des génomes [LBBE] (GINSENG), Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2010
Předmět:
0106 biological sciences
CLONALITY
Genotype
[SDV]Life Sciences [q-bio]
Population
Population genetics
Zoology
01 natural sciences
OOMYCETE
Evolution
Molecular
03 medical and health sciences
DNA
Algal
Gene Frequency
Botany
Genetics
Blight
Cluster Analysis
education
Ecology
Evolution
Behavior and Systematics
030304 developmental biology
Plant Diseases
2. Zero hunger
Oomycete
0303 health sciences
Genetic diversity
education.field_of_study
Principal Component Analysis
biology
SOLANUM TUBEROSUM
fungi
MATING TYPE
MICROSATELLITE MARKERS
food and beverages
Bayes Theorem
Sequence Analysis
DNA
biology.organism_classification
PHYTOPHTHORA INFESTANS
Genetics
Population
POPULATION GENETIC STRUCTURE
Genetic marker
Phytophthora infestans
Microsatellite
France
GENETIQUE DES POPULATIONS
010606 plant biology & botany
Microsatellite Repeats
Zdroj: Molecular ecology
Molecular ecology, 2010, 19 (9), pp.1965-77. ⟨10.1111/j.1365-294X.2010.04619.x⟩
Popis: Potato late blight is an example of a re-emerging disease of plants. Phytophthora infestans was first introduced into Europe during the 19th century, where it caused the Irish potato famine. During the 20th century several additional introduction events have been suspected, especially in the mid-70s due to the import of large quantities of potato needed after the shortage caused by drought in 1976. Here, we investigate the genetic population structure of Phytophthora infestans, at the first stages of a recent invasion process in France. A total of 220 isolates was collected from 20 commercial fields of the potato susceptible cultivar Bintje, during two consecutive years (2004 and 2005). Clustering analyses based on eight recently developed microsatellite markers reveal that French P. infestans populations are made of two differentiated genetic clusters of isolates (F(ST) = 0.19). This result suggests multiple introductions of P. infestans into France, either through the introduction of a composite population of isolates or through the successive introduction of isolates having differentiated genetic backgrounds. Both clusters identified have a strong clonal structure and are similar regarding genetic diversity and mating type composition. The maintenance of differentiation between the two genetic clusters should result from the low or non-existent contribution of sexual reproduction in French P. infestans populations.
Databáze: OpenAIRE
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