@ARTICLE{TreeBASE2Ref22912,
author = {Andrin Gross and Tsuyoshi Hosoya and Valentin Queloz},
title = {Population structure of the invasive forest pathogen Hymenoscyphus pseudoalbidus},
year = {2014},
keywords = {Chalara fraxinea, founder effect, Fraxinus excelsior, Fraxinus mandshurica, invasive species, population genetics},
doi = {},
url = {http://},
pmid = {},
journal = {Molecular Ecology},
volume = {},
number = {},
pages = {},
abstract = {Understanding the genetic diversity and structure of invasive pathogens in source and in introduced areas is crucial to the revelation of hidden biological features of an organism, to the reconstruction of the course of invasions and the establishment of effective control measures. Hymenoscyphus pseudoalbidus (anamorph: Chalara fraxinea) is an invasive and highly destructive fungal pathogen found on common ash Fraxinus excelsior in Europe and is native to East Asia. To gain insights into its dispersal mechanisms and history of invasion, we used microsatellite markers and characterized the genetic structure and diversity of H. pseudoalbidus populations at three spatial levels: (i) between Europe and Japan; (ii) in Europe and (iii) at the epidemic?s front in Switzerland. Phylogenetic and network analysis demonstrated that individuals from both regions are conspecific. However, populations from Japan harbored a higher genetic diversity and were genetically differentiated from European ones. No evident population structure was found among the 1208 European strains using Bayesian and multivariate clustering analysis. Only the distribution of genetic diversity in space, pairwise population differentiation (GST) and the spatial analysis of principal components revealed a faint geographic pattern around Europe. A significant allele deficiency in most European populations pointed to a recent genetic bottleneck, whereas no pattern of isolation by distance was found . Our data suggest that H. pseudoalbidus was introduced just once by at least two individuals. The potential source region of H. pseudoalbidus is vast and further investigations are required for a more accurate localization of the source population.}
}
Citation for Study 15442
Citation title:
"Population structure of the invasive forest pathogen Hymenoscyphus pseudoalbidus".
Study name:
"Population structure of the invasive forest pathogen Hymenoscyphus pseudoalbidus".
This study is part of submission 15442
(Status: Published).
Citation
Gross A., Hosoya T., & Queloz V. 2014. Population structure of the invasive forest pathogen Hymenoscyphus pseudoalbidus. Molecular Ecology, .
Authors
-
Gross A.
(submitter)
-
Hosoya T.
-
Queloz V.
Abstract
Understanding the genetic diversity and structure of invasive pathogens in source and in introduced areas is crucial to the revelation of hidden biological features of an organism, to the reconstruction of the course of invasions and the establishment of effective control measures. Hymenoscyphus pseudoalbidus (anamorph: Chalara fraxinea) is an invasive and highly destructive fungal pathogen found on common ash Fraxinus excelsior in Europe and is native to East Asia. To gain insights into its dispersal mechanisms and history of invasion, we used microsatellite markers and characterized the genetic structure and diversity of H. pseudoalbidus populations at three spatial levels: (i) between Europe and Japan; (ii) in Europe and (iii) at the epidemic?s front in Switzerland. Phylogenetic and network analysis demonstrated that individuals from both regions are conspecific. However, populations from Japan harbored a higher genetic diversity and were genetically differentiated from European ones. No evident population structure was found among the 1208 European strains using Bayesian and multivariate clustering analysis. Only the distribution of genetic diversity in space, pairwise population differentiation (GST) and the spatial analysis of principal components revealed a faint geographic pattern around Europe. A significant allele deficiency in most European populations pointed to a recent genetic bottleneck, whereas no pattern of isolation by distance was found . Our data suggest that H. pseudoalbidus was introduced just once by at least two individuals. The potential source region of H. pseudoalbidus is vast and further investigations are required for a more accurate localization of the source population.
Keywords
Chalara fraxinea, founder effect, Fraxinus excelsior, Fraxinus mandshurica, invasive species, population genetics
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S15442
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref22912,
author = {Andrin Gross and Tsuyoshi Hosoya and Valentin Queloz},
title = {Population structure of the invasive forest pathogen Hymenoscyphus pseudoalbidus},
year = {2014},
keywords = {Chalara fraxinea, founder effect, Fraxinus excelsior, Fraxinus mandshurica, invasive species, population genetics},
doi = {},
url = {http://},
pmid = {},
journal = {Molecular Ecology},
volume = {},
number = {},
pages = {},
abstract = {Understanding the genetic diversity and structure of invasive pathogens in source and in introduced areas is crucial to the revelation of hidden biological features of an organism, to the reconstruction of the course of invasions and the establishment of effective control measures. Hymenoscyphus pseudoalbidus (anamorph: Chalara fraxinea) is an invasive and highly destructive fungal pathogen found on common ash Fraxinus excelsior in Europe and is native to East Asia. To gain insights into its dispersal mechanisms and history of invasion, we used microsatellite markers and characterized the genetic structure and diversity of H. pseudoalbidus populations at three spatial levels: (i) between Europe and Japan; (ii) in Europe and (iii) at the epidemic?s front in Switzerland. Phylogenetic and network analysis demonstrated that individuals from both regions are conspecific. However, populations from Japan harbored a higher genetic diversity and were genetically differentiated from European ones. No evident population structure was found among the 1208 European strains using Bayesian and multivariate clustering analysis. Only the distribution of genetic diversity in space, pairwise population differentiation (GST) and the spatial analysis of principal components revealed a faint geographic pattern around Europe. A significant allele deficiency in most European populations pointed to a recent genetic bottleneck, whereas no pattern of isolation by distance was found . Our data suggest that H. pseudoalbidus was introduced just once by at least two individuals. The potential source region of H. pseudoalbidus is vast and further investigations are required for a more accurate localization of the source population.}
}
- Show RIS reference
TY - JOUR
ID - 22912
AU - Gross,Andrin
AU - Hosoya,Tsuyoshi
AU - Queloz,Valentin
T1 - Population structure of the invasive forest pathogen Hymenoscyphus pseudoalbidus
PY - 2014
KW - Chalara fraxinea
KW - founder effect
KW - Fraxinus excelsior
KW - Fraxinus mandshurica
KW - invasive species
KW - population genetics
UR - http://dx.doi.org/
N2 - Understanding the genetic diversity and structure of invasive pathogens in source and in introduced areas is crucial to the revelation of hidden biological features of an organism, to the reconstruction of the course of invasions and the establishment of effective control measures. Hymenoscyphus pseudoalbidus (anamorph: Chalara fraxinea) is an invasive and highly destructive fungal pathogen found on common ash Fraxinus excelsior in Europe and is native to East Asia. To gain insights into its dispersal mechanisms and history of invasion, we used microsatellite markers and characterized the genetic structure and diversity of H. pseudoalbidus populations at three spatial levels: (i) between Europe and Japan; (ii) in Europe and (iii) at the epidemic?s front in Switzerland. Phylogenetic and network analysis demonstrated that individuals from both regions are conspecific. However, populations from Japan harbored a higher genetic diversity and were genetically differentiated from European ones. No evident population structure was found among the 1208 European strains using Bayesian and multivariate clustering analysis. Only the distribution of genetic diversity in space, pairwise population differentiation (GST) and the spatial analysis of principal components revealed a faint geographic pattern around Europe. A significant allele deficiency in most European populations pointed to a recent genetic bottleneck, whereas no pattern of isolation by distance was found . Our data suggest that H. pseudoalbidus was introduced just once by at least two individuals. The potential source region of H. pseudoalbidus is vast and further investigations are required for a more accurate localization of the source population.
L3 -
JF - Molecular Ecology
VL -
IS -
ER -