Phylogenetic species recognition reveals host-specific lineages among poplar rust fungi.
Identifieur interne : 000051 ( Main/Exploration ); précédent : 000050; suivant : 000052Phylogenetic species recognition reveals host-specific lineages among poplar rust fungi.
Auteurs : Agathe Vialle [Canada] ; Nicolas Feau ; Pascal Frey ; Louis Bernier ; Richard C. HamelinSource :
- Molecular phylogenetics and evolution [ 1095-9513 ] ; 2013.
Descripteurs français
- KwdFr :
- Amorces ADN (génétique), Analyse de séquence d'ADN (MeSH), Basidiomycota (génétique), Classification (méthodes), Données de séquences moléculaires (MeSH), Fonctions de vraisemblance (MeSH), Interactions hôte-pathogène (physiologie), Modèles génétiques (MeSH), Phylogenèse (MeSH), Salicaceae (microbiologie), Spécificité d'espèce (MeSH), Séquence nucléotidique (MeSH), Théorème de Bayes (MeSH), Évolution moléculaire (MeSH).
- MESH :
- génétique : Amorces ADN, Basidiomycota.
- microbiologie : Salicaceae.
- méthodes : Classification.
- physiologie : Interactions hôte-pathogène.
- Analyse de séquence d'ADN, Données de séquences moléculaires, Fonctions de vraisemblance, Modèles génétiques, Phylogenèse, Spécificité d'espèce, Séquence nucléotidique, Théorème de Bayes, Évolution moléculaire.
English descriptors
- KwdEn :
- Base Sequence (MeSH), Basidiomycota (genetics), Bayes Theorem (MeSH), Classification (methods), DNA Primers (genetics), Evolution, Molecular (MeSH), Host-Pathogen Interactions (physiology), Likelihood Functions (MeSH), Models, Genetic (MeSH), Molecular Sequence Data (MeSH), Phylogeny (MeSH), Salicaceae (microbiology), Sequence Analysis, DNA (MeSH), Species Specificity (MeSH).
- MESH :
- chemical , genetics : DNA Primers.
- genetics : Basidiomycota.
- methods : Classification.
- microbiology : Salicaceae.
- physiology : Host-Pathogen Interactions.
- Base Sequence, Bayes Theorem, Evolution, Molecular, Likelihood Functions, Models, Genetic, Molecular Sequence Data, Phylogeny, Sequence Analysis, DNA, Species Specificity.
Abstract
Fungal species belonging to the genus Melampsora (Basidiomycota, Pucciniales) comprise rust pathogens that alternate between Salicaceae and other plant hosts. Species delineation and identification are difficult within this group due to the paucity of observable morphological features. Several Melampsora rusts are highly host-specific and this feature has been used for identification at the species level. However, this criterion is not always reliable since different Melampsora rust species can overlap on one host but specialize on a different one. To date, two different species recognition methods are used to recognize and define species within the Melampsora genus: (i) morphological species recognition, which is based solely on morphological criteria; and (ii) ecological species recognition, which combines morphological criteria with host range to recognize and define species. In order to clarify species recognition within the Melampsora genus, we applied phylogenetic species recognition to Melampsora poplar rusts by conducting molecular phylogenetic analyses on 15 Melampsora taxa using six nuclear and mitochondrial loci. By assessing the genealogical concordance between phylogenies, we identified 12 lineages that evolved independently, corresponding to distinct phylogenetic species. All 12 lineages were concordant with host specialization, but only three belonged to strictly defined morphological species. The estimation of the species tree obtained with Bayesian concordance analysis highlighted a potential co-evolutionary history between Melampsora species and their reciprocal aecial host plants. Within the Melampsora speciation process, aecial host may have had a strong effect on ancestral evolution, whereas telial host specificity seems to have evolved more recently. The morphological characters initially used to define species boundaries in the Melampsora genus are not reflective of the evolutionary and genetic relationships among poplar rusts. In order to construct a more meaningful taxonomy, host specificity must be considered an important criterion for delineating and describing species within the genus Melampsora as previously suggested by ecological species recognition.
DOI: 10.1016/j.ympev.2012.10.021
PubMed: 23147268
Affiliations:
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Species delineation and identification are difficult within this group due to the paucity of observable morphological features. Several Melampsora rusts are highly host-specific and this feature has been used for identification at the species level. However, this criterion is not always reliable since different Melampsora rust species can overlap on one host but specialize on a different one. To date, two different species recognition methods are used to recognize and define species within the Melampsora genus: (i) morphological species recognition, which is based solely on morphological criteria; and (ii) ecological species recognition, which combines morphological criteria with host range to recognize and define species. In order to clarify species recognition within the Melampsora genus, we applied phylogenetic species recognition to Melampsora poplar rusts by conducting molecular phylogenetic analyses on 15 Melampsora taxa using six nuclear and mitochondrial loci. By assessing the genealogical concordance between phylogenies, we identified 12 lineages that evolved independently, corresponding to distinct phylogenetic species. All 12 lineages were concordant with host specialization, but only three belonged to strictly defined morphological species. The estimation of the species tree obtained with Bayesian concordance analysis highlighted a potential co-evolutionary history between Melampsora species and their reciprocal aecial host plants. Within the Melampsora speciation process, aecial host may have had a strong effect on ancestral evolution, whereas telial host specificity seems to have evolved more recently. The morphological characters initially used to define species boundaries in the Melampsora genus are not reflective of the evolutionary and genetic relationships among poplar rusts. In order to construct a more meaningful taxonomy, host specificity must be considered an important criterion for delineating and describing species within the genus Melampsora as previously suggested by ecological species recognition.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23147268</PMID><DateCompleted><Year>2013</Year><Month>07</Month><Day>08</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>02</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1095-9513</ISSN><JournalIssue CitedMedium="Internet"><Volume>66</Volume><Issue>3</Issue><PubDate><Year>2013</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Molecular phylogenetics and evolution</Title><ISOAbbreviation>Mol Phylogenet Evol</ISOAbbreviation></Journal><ArticleTitle>Phylogenetic species recognition reveals host-specific lineages among poplar rust fungi.</ArticleTitle><Pagination><MedlinePgn>628-44</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.ympev.2012.10.021</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S1055-7903(12)00427-7</ELocationID><Abstract><AbstractText>Fungal species belonging to the genus Melampsora (Basidiomycota, Pucciniales) comprise rust pathogens that alternate between Salicaceae and other plant hosts. Species delineation and identification are difficult within this group due to the paucity of observable morphological features. Several Melampsora rusts are highly host-specific and this feature has been used for identification at the species level. However, this criterion is not always reliable since different Melampsora rust species can overlap on one host but specialize on a different one. To date, two different species recognition methods are used to recognize and define species within the Melampsora genus: (i) morphological species recognition, which is based solely on morphological criteria; and (ii) ecological species recognition, which combines morphological criteria with host range to recognize and define species. In order to clarify species recognition within the Melampsora genus, we applied phylogenetic species recognition to Melampsora poplar rusts by conducting molecular phylogenetic analyses on 15 Melampsora taxa using six nuclear and mitochondrial loci. By assessing the genealogical concordance between phylogenies, we identified 12 lineages that evolved independently, corresponding to distinct phylogenetic species. All 12 lineages were concordant with host specialization, but only three belonged to strictly defined morphological species. The estimation of the species tree obtained with Bayesian concordance analysis highlighted a potential co-evolutionary history between Melampsora species and their reciprocal aecial host plants. Within the Melampsora speciation process, aecial host may have had a strong effect on ancestral evolution, whereas telial host specificity seems to have evolved more recently. The morphological characters initially used to define species boundaries in the Melampsora genus are not reflective of the evolutionary and genetic relationships among poplar rusts. In order to construct a more meaningful taxonomy, host specificity must be considered an important criterion for delineating and describing species within the genus Melampsora as previously suggested by ecological species recognition.</AbstractText><CopyrightInformation>Crown Copyright © 2012. Published by Elsevier Inc. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Vialle</LastName><ForeName>Agathe</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du PEPS, P.O. Box 10380, Stn. Sainte-Foy, Québec, QC, Canada G1V 4C7. agathe_vialle@yahoo.fr</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Feau</LastName><ForeName>Nicolas</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Frey</LastName><ForeName>Pascal</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Bernier</LastName><ForeName>Louis</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Hamelin</LastName><ForeName>Richard C</ForeName><Initials>RC</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>11</Month><Day>10</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Mol Phylogenet Evol</MedlineTA><NlmUniqueID>9304400</NlmUniqueID><ISSNLinking>1055-7903</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D017931">DNA Primers</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001483" MajorTopicYN="N">Base Sequence</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001499" MajorTopicYN="N">Bayes Theorem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002965" MajorTopicYN="N">Classification</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="N">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017931" MajorTopicYN="N">DNA Primers</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D019143" MajorTopicYN="Y">Evolution, Molecular</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D054884" MajorTopicYN="N">Host-Pathogen Interactions</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D016013" MajorTopicYN="N">Likelihood Functions</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008957" MajorTopicYN="N">Models, Genetic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008969" MajorTopicYN="N">Molecular Sequence Data</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010802" MajorTopicYN="Y">Phylogeny</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D031308" MajorTopicYN="N">Salicaceae</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D017422" MajorTopicYN="N">Sequence Analysis, DNA</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year><Month>02</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2012</Year><Month>09</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2012</Year><Month>10</Month><Day>11</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>11</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>11</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>7</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23147268</ArticleId><ArticleId IdType="pii">S1055-7903(12)00427-7</ArticleId><ArticleId IdType="doi">10.1016/j.ympev.2012.10.021</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Bernier, Louis" sort="Bernier, Louis" uniqKey="Bernier L" first="Louis" last="Bernier">Louis Bernier</name><name sortKey="Feau, Nicolas" sort="Feau, Nicolas" uniqKey="Feau N" first="Nicolas" last="Feau">Nicolas Feau</name><name sortKey="Frey, Pascal" sort="Frey, Pascal" uniqKey="Frey P" first="Pascal" last="Frey">Pascal Frey</name><name sortKey="Hamelin, Richard C" sort="Hamelin, Richard C" uniqKey="Hamelin R" first="Richard C" last="Hamelin">Richard C. Hamelin</name></noCountry><country name="Canada"><noRegion><name sortKey="Vialle, Agathe" sort="Vialle, Agathe" uniqKey="Vialle A" first="Agathe" last="Vialle">Agathe Vialle</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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