To be or not to be solitary: Phytophthora infestans' dilemma for optimizing its reproductive fitness in multiple infections.
Identifieur interne : 001416 ( Main/Exploration ); précédent : 001415; suivant : 001417To be or not to be solitary: Phytophthora infestans' dilemma for optimizing its reproductive fitness in multiple infections.
Auteurs : Julie A J. Clément [France] ; Hélène Magalon ; Isabelle Glais ; Emmanuel Jacquot ; Didier AndrivonSource :
- PloS one [ 1932-6203 ] ; 2012.
Descripteurs français
- KwdFr :
- MESH :
- génétique : Phytophthora infestans.
- microbiologie : Maladies des plantes, Solanum tuberosum.
- physiologie : Phytophthora infestans, Spores.
- Analyse de variance, Aptitude génétique, Génotype, Interactions hôte-parasite.
English descriptors
- KwdEn :
- MESH :
- genetics : Phytophthora infestans.
- microbiology : Plant Diseases, Solanum tuberosum.
- physiology : Phytophthora infestans, Spores.
- Analysis of Variance, Genetic Fitness, Genotype, Host-Parasite Interactions.
Abstract
The success of parasitic life lies in an optimal exploitation of the host to satisfy key functions directly involved in reproductive fitness. Resource availability generally decreases over time with host mortality, but also during multiple infections, where different strains of parasite share host resources. During multiple infections, the number of parasite strains and their genetic relatedness are known to influence their reproductive rates. Using infections of the potato plant Solanum tuberosum with the parasite Phytophthora infestans, we set up an experimental design to separate dose effects (double- vs. single-site infections) from genetic relatedness (different vs. identical genotypes) on the reproductive fitness of competing parasite genotypes. We showed the existence of two basic response patterns--increase or decrease in reproductive fitness in multiple infections- depending on the parasite genotype. In all cases, the intensity of the response of any genotype depended on the genotype of the competing strain. This diversity of responses to multiple infections is probably maintained by the fluctuating frequencies of multiple infections in nature, arising from variations in disease pressure over the course of an epidemic and between successive epidemics. It allows a rapid response of parasitic populations to changing environments, which are particularly intense in agricultural systems.
DOI: 10.1371/journal.pone.0037838
PubMed: 22675493
PubMed Central: PMC3365895
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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Clément</name><affiliation wicri:level="1"><nlm:affiliation>Institut of Genetic Environment and Plant Protection, Institut National de la Recherche Agronomique - Agrocampus Ouest - University of Rennes 1, Le Rheu, France. jajclement@gmail.com</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Institut of Genetic Environment and Plant Protection, Institut National de la Recherche Agronomique - Agrocampus Ouest - University of Rennes 1, Le Rheu</wicri:regionArea><wicri:noRegion>Le Rheu</wicri:noRegion><wicri:noRegion>Le Rheu</wicri:noRegion></affiliation></author><author><name sortKey="Magalon, Helene" sort="Magalon, Helene" uniqKey="Magalon H" first="Hélène" last="Magalon">Hélène Magalon</name></author><author><name sortKey="Glais, Isabelle" sort="Glais, Isabelle" uniqKey="Glais I" first="Isabelle" last="Glais">Isabelle Glais</name></author><author><name sortKey="Jacquot, Emmanuel" sort="Jacquot, Emmanuel" uniqKey="Jacquot E" first="Emmanuel" last="Jacquot">Emmanuel Jacquot</name></author><author><name sortKey="Andrivon, Didier" sort="Andrivon, Didier" uniqKey="Andrivon D" first="Didier" last="Andrivon">Didier Andrivon</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22675493</idno><idno type="pmid">22675493</idno><idno type="doi">10.1371/journal.pone.0037838</idno><idno type="pmc">PMC3365895</idno><idno type="wicri:Area/Main/Corpus">001502</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001502</idno><idno type="wicri:Area/Main/Curation">001502</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">001502</idno><idno type="wicri:Area/Main/Exploration">001502</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">To be or not to be solitary: Phytophthora infestans' dilemma for optimizing its reproductive fitness in multiple infections.</title><author><name sortKey="Clement, Julie A J" sort="Clement, Julie A J" uniqKey="Clement J" first="Julie A J" last="Clément">Julie A J. 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Resource availability generally decreases over time with host mortality, but also during multiple infections, where different strains of parasite share host resources. During multiple infections, the number of parasite strains and their genetic relatedness are known to influence their reproductive rates. Using infections of the potato plant Solanum tuberosum with the parasite Phytophthora infestans, we set up an experimental design to separate dose effects (double- vs. single-site infections) from genetic relatedness (different vs. identical genotypes) on the reproductive fitness of competing parasite genotypes. We showed the existence of two basic response patterns--increase or decrease in reproductive fitness in multiple infections- depending on the parasite genotype. In all cases, the intensity of the response of any genotype depended on the genotype of the competing strain. This diversity of responses to multiple infections is probably maintained by the fluctuating frequencies of multiple infections in nature, arising from variations in disease pressure over the course of an epidemic and between successive epidemics. It allows a rapid response of parasitic populations to changing environments, which are particularly intense in agricultural systems.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22675493</PMID><DateCompleted><Year>2012</Year><Month>10</Month><Day>11</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1932-6203</ISSN><JournalIssue CitedMedium="Internet"><Volume>7</Volume><Issue>6</Issue><PubDate><Year>2012</Year></PubDate></JournalIssue><Title>PloS one</Title><ISOAbbreviation>PLoS One</ISOAbbreviation></Journal><ArticleTitle>To be or not to be solitary: Phytophthora infestans' dilemma for optimizing its reproductive fitness in multiple infections.</ArticleTitle><Pagination><MedlinePgn>e37838</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1371/journal.pone.0037838</ELocationID><Abstract><AbstractText>The success of parasitic life lies in an optimal exploitation of the host to satisfy key functions directly involved in reproductive fitness. Resource availability generally decreases over time with host mortality, but also during multiple infections, where different strains of parasite share host resources. During multiple infections, the number of parasite strains and their genetic relatedness are known to influence their reproductive rates. Using infections of the potato plant Solanum tuberosum with the parasite Phytophthora infestans, we set up an experimental design to separate dose effects (double- vs. single-site infections) from genetic relatedness (different vs. identical genotypes) on the reproductive fitness of competing parasite genotypes. We showed the existence of two basic response patterns--increase or decrease in reproductive fitness in multiple infections- depending on the parasite genotype. In all cases, the intensity of the response of any genotype depended on the genotype of the competing strain. This diversity of responses to multiple infections is probably maintained by the fluctuating frequencies of multiple infections in nature, arising from variations in disease pressure over the course of an epidemic and between successive epidemics. It allows a rapid response of parasitic populations to changing environments, which are particularly intense in agricultural systems.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Clément</LastName><ForeName>Julie A J</ForeName><Initials>JA</Initials><AffiliationInfo><Affiliation>Institut of Genetic Environment and Plant Protection, Institut National de la Recherche Agronomique - Agrocampus Ouest - University of Rennes 1, Le Rheu, France. jajclement@gmail.com</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Magalon</LastName><ForeName>Hélène</ForeName><Initials>H</Initials></Author><Author ValidYN="Y"><LastName>Glais</LastName><ForeName>Isabelle</ForeName><Initials>I</Initials></Author><Author ValidYN="Y"><LastName>Jacquot</LastName><ForeName>Emmanuel</ForeName><Initials>E</Initials></Author><Author 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last="Jacquot">Emmanuel Jacquot</name><name sortKey="Magalon, Helene" sort="Magalon, Helene" uniqKey="Magalon H" first="Hélène" last="Magalon">Hélène Magalon</name></noCountry><country name="France"><noRegion><name sortKey="Clement, Julie A J" sort="Clement, Julie A J" uniqKey="Clement J" first="Julie A J" last="Clément">Julie A J. 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