Novel introductions and epidemic dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon forests.
Identifieur interne : 000103 ( Main/Exploration ); précédent : 000102; suivant : 000104Novel introductions and epidemic dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon forests.
Auteurs : Nicholas C. Carleson [États-Unis] ; Hazel Daniels [États-Unis] ; Paul Reeser [États-Unis] ; Alan Kanaskie [Oman] ; Sarah Navarro ; Jared Leboldus [États-Unis] ; Niklaus J. Grünwald [États-Unis]Source :
- Phytopathology [ 0031-949X ] ; 2020.
Abstract
Sudden oak death caused by Phytophthora ramorum has been actively managed in Oregon since the early 2000's. To date, this epidemic has been driven mostly by the NA1 clonal lineage of P. ramorum, but an outbreak of the EU1 lineage has recently emerged. Here we contrast the population dynamics of the NA1 outbreak first reported in 2001 to the outbreak of the EU1 lineage first detected in 2015. We tested if any of the lineages were introduced more than once. Infested regions of the forest were sampled between 2013-2018 (n = 903) and strains were genotyped at 15 microsatellite loci. Most genotypes observed were transient, with 272 of 358 unique genotypes emerging one year and disappearing the next. Diversity of EU1 was very low and isolates were spatially clustered (< 8 km apart), suggesting a single EU1 introduction. Some forest isolates are genetically similar to isolates collected from a local nursery in 2012, suggesting introduction of EU1 from this nursery or simultaneous introduction to both the nursery and latently into the forest. In contrast, the older NA1 populations were more polymorphic and spread over 30 km2. Principal component analysis supported two to four independent NA1 introductions. The NA1 and EU1 epidemics infest the same area but show disparate demographics owing to initial introductions of the lineages spaced 10 years apart. Comparing these epidemics provides novel insights into patterns of emergence of clonal pathogens in forest ecosystems.
DOI: 10.1094/PHYTO-05-20-0164-R
PubMed: 33021878
Affiliations:
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Carleson</name><affiliation wicri:level="2"><nlm:affiliation>Oregon State University, 2694, Department of Botany and Plant Pathology, Corvallis, Oregon, United States; carleson@oregonstate.edu.</nlm:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>Oregon State University, 2694, Department of Botany and Plant Pathology, Corvallis, Oregon</wicri:regionArea><placeName><region type="state">Oregon</region></placeName></affiliation></author><author><name sortKey="Daniels, Hazel" sort="Daniels, Hazel" uniqKey="Daniels H" first="Hazel" last="Daniels">Hazel Daniels</name><affiliation wicri:level="2"><nlm:affiliation>Oregon State University, 2694, Department of Botany and Plant Pathology, Corvallis, Oregon, United States; hazel.daniels@oregonstate.edu.</nlm:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>Oregon State University, 2694, Department of Botany and Plant Pathology, Corvallis, Oregon</wicri:regionArea><placeName><region type="state">Oregon</region></placeName></affiliation></author><author><name sortKey="Reeser, Paul" sort="Reeser, Paul" uniqKey="Reeser P" first="Paul" last="Reeser">Paul Reeser</name><affiliation wicri:level="2"><nlm:affiliation>Oregon State University, Botany and Plant Pathology, Corvallis, Oregon, United States; reeserp@science.oregonstate.edu.</nlm:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>Oregon State University, Botany and Plant Pathology, Corvallis, Oregon</wicri:regionArea><placeName><region type="state">Oregon</region></placeName></affiliation></author><author><name sortKey="Kanaskie, Alan" sort="Kanaskie, Alan" uniqKey="Kanaskie A" first="Alan" last="Kanaskie">Alan Kanaskie</name><affiliation wicri:level="1"><nlm:affiliation>Oregon Department of Forestry, 260065, Salem, Oregon, United States; alkanaskie@gmail.com.</nlm:affiliation><country wicri:rule="url">Oman</country><wicri:regionArea>Oregon Department of Forestry, 260065, Salem, Oregon</wicri:regionArea><wicri:noRegion>Oregon</wicri:noRegion></affiliation></author><author><name sortKey="Navarro, Sarah" sort="Navarro, Sarah" uniqKey="Navarro S" first="Sarah" last="Navarro">Sarah Navarro</name><affiliation><nlm:affiliation>Oregon Department of Forestry, 260065, Salem, Oregon, United States; Sarah.Navarro@oregon.gov.</nlm:affiliation><wicri:noCountry code="subField">United States; Sarah.Navarro@oregon.gov.</wicri:noCountry></affiliation></author><author><name sortKey="Leboldus, Jared" sort="Leboldus, Jared" uniqKey="Leboldus J" first="Jared" last="Leboldus">Jared Leboldus</name><affiliation wicri:level="1"><nlm:affiliation>2062 Cordely HallCorvallis, Oregon, United States, 97331; jared.leboldus@science.oregonstate.edu.</nlm:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>2062 Cordely HallCorvallis, Oregon, United States</wicri:regionArea><wicri:noRegion>United States</wicri:noRegion></affiliation></author><author><name sortKey="Grunwald, Niklaus J" sort="Grunwald, Niklaus J" uniqKey="Grunwald N" first="Niklaus J" last="Grünwald">Niklaus J. Grünwald</name><affiliation wicri:level="2"><nlm:affiliation>USDA Agricultural Research Service, 17123, Horticultural Crops Research Laboratory, Corvallis, Oregon, United States; grunwaln@oregonstate.edu.</nlm:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>USDA Agricultural Research Service, 17123, Horticultural Crops Research Laboratory, Corvallis, Oregon</wicri:regionArea><placeName><region type="state">Oregon</region></placeName></affiliation></author></analytic><series><title level="j">Phytopathology</title><idno type="ISSN">0031-949X</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Sudden oak death caused by Phytophthora ramorum has been actively managed in Oregon since the early 2000's. To date, this epidemic has been driven mostly by the NA1 clonal lineage of P. ramorum, but an outbreak of the EU1 lineage has recently emerged. Here we contrast the population dynamics of the NA1 outbreak first reported in 2001 to the outbreak of the EU1 lineage first detected in 2015. We tested if any of the lineages were introduced more than once. Infested regions of the forest were sampled between 2013-2018 (n = 903) and strains were genotyped at 15 microsatellite loci. Most genotypes observed were transient, with 272 of 358 unique genotypes emerging one year and disappearing the next. Diversity of EU1 was very low and isolates were spatially clustered (< 8 km apart), suggesting a single EU1 introduction. Some forest isolates are genetically similar to isolates collected from a local nursery in 2012, suggesting introduction of EU1 from this nursery or simultaneous introduction to both the nursery and latently into the forest. In contrast, the older NA1 populations were more polymorphic and spread over 30 km2. Principal component analysis supported two to four independent NA1 introductions. The NA1 and EU1 epidemics infest the same area but show disparate demographics owing to initial introductions of the lineages spaced 10 years apart. Comparing these epidemics provides novel insights into patterns of emergence of clonal pathogens in forest ecosystems.</div></front></TEI><pubmed><MedlineCitation Status="Publisher" Owner="NLM"><PMID Version="1">33021878</PMID><DateRevised><Year>2020</Year><Month>10</Month><Day>06</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0031-949X</ISSN><JournalIssue CitedMedium="Print"><PubDate><Year>2020</Year><Month>Oct</Month><Day>06</Day></PubDate></JournalIssue><Title>Phytopathology</Title><ISOAbbreviation>Phytopathology</ISOAbbreviation></Journal><ArticleTitle>Novel introductions and epidemic dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon forests.</ArticleTitle><ELocationID EIdType="doi" ValidYN="Y">10.1094/PHYTO-05-20-0164-R</ELocationID><Abstract><AbstractText>Sudden oak death caused by Phytophthora ramorum has been actively managed in Oregon since the early 2000's. To date, this epidemic has been driven mostly by the NA1 clonal lineage of P. ramorum, but an outbreak of the EU1 lineage has recently emerged. Here we contrast the population dynamics of the NA1 outbreak first reported in 2001 to the outbreak of the EU1 lineage first detected in 2015. We tested if any of the lineages were introduced more than once. Infested regions of the forest were sampled between 2013-2018 (n = 903) and strains were genotyped at 15 microsatellite loci. Most genotypes observed were transient, with 272 of 358 unique genotypes emerging one year and disappearing the next. Diversity of EU1 was very low and isolates were spatially clustered (< 8 km apart), suggesting a single EU1 introduction. Some forest isolates are genetically similar to isolates collected from a local nursery in 2012, suggesting introduction of EU1 from this nursery or simultaneous introduction to both the nursery and latently into the forest. In contrast, the older NA1 populations were more polymorphic and spread over 30 km2. Principal component analysis supported two to four independent NA1 introductions. The NA1 and EU1 epidemics infest the same area but show disparate demographics owing to initial introductions of the lineages spaced 10 years apart. Comparing these epidemics provides novel insights into patterns of emergence of clonal pathogens in forest ecosystems.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Carleson</LastName><ForeName>Nicholas C</ForeName><Initials>NC</Initials><AffiliationInfo><Affiliation>Oregon State University, 2694, Department of Botany and Plant Pathology, Corvallis, Oregon, United States; carleson@oregonstate.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Daniels</LastName><ForeName>Hazel</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Oregon State University, 2694, Department of Botany and Plant Pathology, Corvallis, Oregon, United States; hazel.daniels@oregonstate.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Reeser</LastName><ForeName>Paul</ForeName><Initials>P</Initials><AffiliationInfo><Affiliation>Oregon State University, Botany and Plant Pathology, Corvallis, Oregon, United States; reeserp@science.oregonstate.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kanaskie</LastName><ForeName>Alan</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Oregon Department of Forestry, 260065, Salem, Oregon, United States; alkanaskie@gmail.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Navarro</LastName><ForeName>Sarah</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Oregon Department of Forestry, 260065, Salem, Oregon, United States; Sarah.Navarro@oregon.gov.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Leboldus</LastName><ForeName>Jared</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>2062 Cordely HallCorvallis, Oregon, United States, 97331; jared.leboldus@science.oregonstate.edu.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Grünwald</LastName><ForeName>Niklaus J</ForeName><Initials>NJ</Initials><AffiliationInfo><Affiliation>USDA Agricultural Research Service, 17123, Horticultural Crops Research Laboratory, Corvallis, Oregon, United States; grunwaln@oregonstate.edu.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>10</Month><Day>06</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Phytopathology</MedlineTA><NlmUniqueID>9427222</NlmUniqueID><ISSNLinking>0031-949X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Ecology and epidemiology</Keyword><Keyword MajorTopicYN="N">Mycology</Keyword><Keyword MajorTopicYN="N">Population Biology</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>10</Month><Day>6</Day><Hour>17</Hour><Minute>10</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>10</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>10</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>aheadofprint</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">33021878</ArticleId><ArticleId IdType="doi">10.1094/PHYTO-05-20-0164-R</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Oman</li><li>États-Unis</li></country><region><li>Oregon</li></region></list><tree><noCountry><name sortKey="Navarro, Sarah" sort="Navarro, Sarah" uniqKey="Navarro S" first="Sarah" last="Navarro">Sarah Navarro</name></noCountry><country name="États-Unis"><region name="Oregon"><name sortKey="Carleson, Nicholas C" sort="Carleson, Nicholas C" uniqKey="Carleson N" first="Nicholas C" last="Carleson">Nicholas C. Carleson</name></region><name sortKey="Daniels, Hazel" sort="Daniels, Hazel" uniqKey="Daniels H" first="Hazel" last="Daniels">Hazel Daniels</name><name sortKey="Grunwald, Niklaus J" sort="Grunwald, Niklaus J" uniqKey="Grunwald N" first="Niklaus J" last="Grünwald">Niklaus J. Grünwald</name><name sortKey="Leboldus, Jared" sort="Leboldus, Jared" uniqKey="Leboldus J" first="Jared" last="Leboldus">Jared Leboldus</name><name sortKey="Reeser, Paul" sort="Reeser, Paul" uniqKey="Reeser P" first="Paul" last="Reeser">Paul Reeser</name></country><country name="Oman"><noRegion><name sortKey="Kanaskie, Alan" sort="Kanaskie, Alan" uniqKey="Kanaskie A" first="Alan" last="Kanaskie">Alan Kanaskie</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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