Microsatellite markers reveal two admixed genetic groups and an ongoing displacement within the French population of the invasive plant pathogen Phytophthora infestans.
Identifieur interne : 001880 ( Main/Exploration ); précédent : 001879; suivant : 001881Microsatellite markers reveal two admixed genetic groups and an ongoing displacement within the French population of the invasive plant pathogen Phytophthora infestans.
Auteurs : Josselin Montarry [France] ; Didier Andrivon ; Isabelle Glais ; Roselyne Corbiere ; Gladys Mialdea ; Francois DelmotteSource :
- Molecular ecology [ 1365-294X ] ; 2010.
Descripteurs français
- KwdFr :
- ADN des algues (génétique), Analyse de regroupements (MeSH), Analyse de séquence d'ADN (MeSH), Analyse en composantes principales (MeSH), France (MeSH), Fréquence d'allèle (MeSH), Génotype (MeSH), Génétique des populations (MeSH), Maladies des plantes (parasitologie), Phytophthora infestans (classification), Phytophthora infestans (génétique), Répétitions microsatellites (MeSH), Théorème de Bayes (MeSH), Évolution moléculaire (MeSH).
- MESH :
- génétique : ADN des algues, Phytophthora infestans.
- parasitologie : Maladies des plantes.
- Analyse de regroupements, Analyse de séquence d'ADN, Analyse en composantes principales, France, Fréquence d'allèle, Génotype, Génétique des populations, Répétitions microsatellites, Théorème de Bayes, Évolution moléculaire.
- Wicri :
- geographic : France.
English descriptors
- KwdEn :
- Bayes Theorem (MeSH), Cluster Analysis (MeSH), DNA, Algal (genetics), Evolution, Molecular (MeSH), France (MeSH), Gene Frequency (MeSH), Genetics, Population (MeSH), Genotype (MeSH), Microsatellite Repeats (MeSH), Phytophthora infestans (classification), Phytophthora infestans (genetics), Plant Diseases (parasitology), Principal Component Analysis (MeSH), Sequence Analysis, DNA (MeSH).
- MESH :
- chemical , genetics : DNA, Algal.
- geographic : France.
- classification : Phytophthora infestans.
- genetics : Phytophthora infestans.
- parasitology : Plant Diseases.
- Bayes Theorem, Cluster Analysis, Evolution, Molecular, Gene Frequency, Genetics, Population, Genotype, Microsatellite Repeats, Principal Component Analysis, Sequence Analysis, DNA.
Abstract
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.
DOI: 10.1111/j.1365-294X.2010.04619.x
PubMed: 20345671
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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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.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20345671</PMID><DateCompleted><Year>2010</Year><Month>07</Month><Day>26</Day></DateCompleted><DateRevised><Year>2010</Year><Month>06</Month><Day>10</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-294X</ISSN><JournalIssue CitedMedium="Internet"><Volume>19</Volume><Issue>9</Issue><PubDate><Year>2010</Year><Month>May</Month></PubDate></JournalIssue><Title>Molecular ecology</Title><ISOAbbreviation>Mol Ecol</ISOAbbreviation></Journal><ArticleTitle>Microsatellite markers reveal two admixed genetic groups and an ongoing displacement within the French population of the invasive plant pathogen Phytophthora infestans.</ArticleTitle><Pagination><MedlinePgn>1965-77</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-294X.2010.04619.x</ELocationID><Abstract><AbstractText>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.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Montarry</LastName><ForeName>Josselin</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>INRA, UMR1099 BiO3P, F-35653 Le Rheu, France. josselin.montarry@avignon.inra.fr</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Andrivon</LastName><ForeName>Didier</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Glais</LastName><ForeName>Isabelle</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Corbiere</LastName><ForeName>Roselyne</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Mialdea</LastName><ForeName>Gladys</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Delmotte</LastName><ForeName>Francois</ForeName><Initials>F</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2010</Year><Month>03</Month><Day>24</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Mol Ecol</MedlineTA><NlmUniqueID>9214478</NlmUniqueID><ISSNLinking>0962-1083</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D048028">DNA, Algal</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001499" MajorTopicYN="N">Bayes Theorem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016000" MajorTopicYN="N">Cluster Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D048028" MajorTopicYN="N">DNA, 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IdType="pubmed">20345671</ArticleId><ArticleId IdType="pii">MEC4619</ArticleId><ArticleId IdType="doi">10.1111/j.1365-294X.2010.04619.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Région Bretagne</li></region><settlement><li>Le Rheu</li></settlement></list><tree><noCountry><name sortKey="Andrivon, Didier" sort="Andrivon, Didier" uniqKey="Andrivon D" first="Didier" last="Andrivon">Didier Andrivon</name><name sortKey="Corbiere, Roselyne" sort="Corbiere, Roselyne" uniqKey="Corbiere R" first="Roselyne" last="Corbiere">Roselyne Corbiere</name><name sortKey="Delmotte, Francois" sort="Delmotte, Francois" uniqKey="Delmotte F" first="Francois" last="Delmotte">Francois Delmotte</name><name sortKey="Glais, Isabelle" sort="Glais, Isabelle" uniqKey="Glais I" first="Isabelle" last="Glais">Isabelle Glais</name><name sortKey="Mialdea, Gladys" sort="Mialdea, Gladys" uniqKey="Mialdea G" first="Gladys" last="Mialdea">Gladys Mialdea</name></noCountry><country name="France"><region name="Région Bretagne"><name sortKey="Montarry, Josselin" sort="Montarry, Josselin" uniqKey="Montarry J" first="Josselin" last="Montarry">Josselin Montarry</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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