Clinal resistance structure and pathogen local adaptation in a serpentine flax-flax rust interaction.
Identifieur interne : 000145 ( PubMed/Corpus ); précédent : 000144; suivant : 000146Clinal resistance structure and pathogen local adaptation in a serpentine flax-flax rust interaction.
Auteurs : Yuri P. SpringerSource :
- Evolution; international journal of organic evolution [ 0014-3820 ] ; 2007.
English descriptors
- KwdEn :
- MESH :
- chemical : Asbestos, Serpentine.
- geographic : California.
- microbiology : Linaceae.
- physiology : Basidiomycota.
- Adaptation, Biological, Ecosystem, Plant Diseases, Species Specificity.
Abstract
Because disease resistance is a hallmark signature of pathogen-mediated selection pressure on hosts, studies of resistance structure (the spatial distribution of disease resistance genes among conspecific host populations) can provide valuable insights into the influence of pathogens on host evolution and spatial variation in the magnitude of their effects. To date few studies of wild plant-pathogen interactions have characterized resistance structure by sampling across the host's biogeographic range, and only a handful have paired such investigations with studies of disease levels under natural conditions. I used a greenhouse cross-inoculation experiment to characterize genetic resistance of 16 populations of California dwarf flax (Hesperolinon californicum) to attack by multiple samples of the rust fungus Melampsora lini. I documented a latitudinal cline in resistance structure, manifest across the host's biogeographic range, which mirrored almost identically a cline in infection prevalence documented through field surveys of disease in study populations. These results provide empirical evidence for clinal patterns of antagonistic selection pressure, demonstrate that such patterns can be manifest across broad biogeographic scales, and suggest that rates of disease prevalence in wild plant populations may be tightly linked to the distribution of host resistance genes. Tests for local adaptation of the fungus revealed evidence of the phenomenon (significantly greater infection in sympatric plant-fungal pairings) as well as the potential for substantial bias to be introduced into statistical analyses by spatial patterns of host resistance structure.
DOI: 10.1111/j.1558-5646.2007.00156.x
PubMed: 17683425
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pubmed:17683425Le document en format XML
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Springer</name><affiliation><nlm:affiliation>Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, A316 Earth and Marine Sciences Bldg., Santa Cruz, California 95064, USA. yurispringer@gmail.com</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2007">2007</date><idno type="RBID">pubmed:17683425</idno><idno type="pmid">17683425</idno><idno type="doi">10.1111/j.1558-5646.2007.00156.x</idno><idno type="wicri:Area/PubMed/Corpus">000145</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000145</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Clinal resistance structure and pathogen local adaptation in a serpentine flax-flax rust interaction.</title><author><name sortKey="Springer, Yuri P" sort="Springer, Yuri P" uniqKey="Springer Y" first="Yuri P" last="Springer">Yuri P. Springer</name><affiliation><nlm:affiliation>Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, A316 Earth and Marine Sciences Bldg., Santa Cruz, California 95064, USA. yurispringer@gmail.com</nlm:affiliation></affiliation></author></analytic><series><title level="j">Evolution; international journal of organic evolution</title><idno type="ISSN">0014-3820</idno><imprint><date when="2007" type="published">2007</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adaptation, Biological (MeSH)</term><term>Asbestos, Serpentine (MeSH)</term><term>Basidiomycota (physiology)</term><term>California (MeSH)</term><term>Ecosystem (MeSH)</term><term>Linaceae (microbiology)</term><term>Plant Diseases (MeSH)</term><term>Species Specificity (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Asbestos, Serpentine</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>California</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Linaceae</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Basidiomycota</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adaptation, Biological</term><term>Ecosystem</term><term>Plant Diseases</term><term>Species Specificity</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Because disease resistance is a hallmark signature of pathogen-mediated selection pressure on hosts, studies of resistance structure (the spatial distribution of disease resistance genes among conspecific host populations) can provide valuable insights into the influence of pathogens on host evolution and spatial variation in the magnitude of their effects. To date few studies of wild plant-pathogen interactions have characterized resistance structure by sampling across the host's biogeographic range, and only a handful have paired such investigations with studies of disease levels under natural conditions. I used a greenhouse cross-inoculation experiment to characterize genetic resistance of 16 populations of California dwarf flax (Hesperolinon californicum) to attack by multiple samples of the rust fungus Melampsora lini. I documented a latitudinal cline in resistance structure, manifest across the host's biogeographic range, which mirrored almost identically a cline in infection prevalence documented through field surveys of disease in study populations. These results provide empirical evidence for clinal patterns of antagonistic selection pressure, demonstrate that such patterns can be manifest across broad biogeographic scales, and suggest that rates of disease prevalence in wild plant populations may be tightly linked to the distribution of host resistance genes. Tests for local adaptation of the fungus revealed evidence of the phenomenon (significantly greater infection in sympatric plant-fungal pairings) as well as the potential for substantial bias to be introduced into statistical analyses by spatial patterns of host resistance structure.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17683425</PMID><DateCompleted><Year>2007</Year><Month>11</Month><Day>08</Day></DateCompleted><DateRevised><Year>2008</Year><Month>06</Month><Day>04</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0014-3820</ISSN><JournalIssue CitedMedium="Print"><Volume>61</Volume><Issue>8</Issue><PubDate><Year>2007</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Evolution; international journal of organic evolution</Title><ISOAbbreviation>Evolution</ISOAbbreviation></Journal><ArticleTitle>Clinal resistance structure and pathogen local adaptation in a serpentine flax-flax rust interaction.</ArticleTitle><Pagination><MedlinePgn>1812-22</MedlinePgn></Pagination><Abstract><AbstractText>Because disease resistance is a hallmark signature of pathogen-mediated selection pressure on hosts, studies of resistance structure (the spatial distribution of disease resistance genes among conspecific host populations) can provide valuable insights into the influence of pathogens on host evolution and spatial variation in the magnitude of their effects. To date few studies of wild plant-pathogen interactions have characterized resistance structure by sampling across the host's biogeographic range, and only a handful have paired such investigations with studies of disease levels under natural conditions. I used a greenhouse cross-inoculation experiment to characterize genetic resistance of 16 populations of California dwarf flax (Hesperolinon californicum) to attack by multiple samples of the rust fungus Melampsora lini. I documented a latitudinal cline in resistance structure, manifest across the host's biogeographic range, which mirrored almost identically a cline in infection prevalence documented through field surveys of disease in study populations. These results provide empirical evidence for clinal patterns of antagonistic selection pressure, demonstrate that such patterns can be manifest across broad biogeographic scales, and suggest that rates of disease prevalence in wild plant populations may be tightly linked to the distribution of host resistance genes. Tests for local adaptation of the fungus revealed evidence of the phenomenon (significantly greater infection in sympatric plant-fungal pairings) as well as the potential for substantial bias to be introduced into statistical analyses by spatial patterns of host resistance structure.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Springer</LastName><ForeName>Yuri P</ForeName><Initials>YP</Initials><AffiliationInfo><Affiliation>Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, A316 Earth and Marine Sciences Bldg., Santa Cruz, California 95064, USA. yurispringer@gmail.com</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Evolution</MedlineTA><NlmUniqueID>0373224</NlmUniqueID><ISSNLinking>0014-3820</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D017632">Asbestos, Serpentine</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000220" MajorTopicYN="Y">Adaptation, Biological</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017632" MajorTopicYN="N">Asbestos, Serpentine</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002140" MajorTopicYN="N" Type="Geographic">California</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019658" MajorTopicYN="N">Linaceae</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>8</Month><Day>9</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>11</Month><Day>9</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>8</Month><Day>9</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">17683425</ArticleId><ArticleId IdType="pii">EVO156</ArticleId><ArticleId IdType="doi">10.1111/j.1558-5646.2007.00156.x</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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