Resistance to Puccinia graminis f. sp. avenae in Barley Is Associated with the Rpg5 Locus.
Identifieur interne : 000091 ( Main/Corpus ); précédent : 000090; suivant : 000092Resistance to Puccinia graminis f. sp. avenae in Barley Is Associated with the Rpg5 Locus.
Auteurs : Peter Dracatos ; Davinder Singh ; Tom Fetch ; Robert ParkSource :
- Phytopathology [ 0031-949X ] ; 2015.
English descriptors
- KwdEn :
- Alleles (MeSH), Australia (MeSH), Basidiomycota (physiology), Chromosome Mapping (MeSH), Chromosomes, Plant (genetics), Crosses, Genetic (MeSH), Disease Resistance (MeSH), Genetic Markers (genetics), Genotype (MeSH), Hordeum (genetics), Hordeum (immunology), Hordeum (microbiology), Phenotype (MeSH), Plant Diseases (immunology), Plant Diseases (microbiology), Plant Leaves (genetics), Plant Leaves (immunology), Plant Leaves (microbiology), Plant Proteins (genetics), Plant Stems (genetics), Plant Stems (immunology), Plant Stems (microbiology), Seedlings (genetics), Seedlings (immunology), Seedlings (microbiology).
- MESH :
- chemical , genetics : Genetic Markers, Plant Proteins.
- geographic : Australia.
- genetics : Chromosomes, Plant, Hordeum, Plant Leaves, Plant Stems, Seedlings.
- immunology : Hordeum, Plant Diseases, Plant Leaves, Plant Stems, Seedlings.
- microbiology : Hordeum, Plant Diseases, Plant Leaves, Plant Stems, Seedlings.
- physiology : Basidiomycota.
- Alleles, Chromosome Mapping, Crosses, Genetic, Disease Resistance, Genotype, Phenotype.
Abstract
In barley, gene Rpg5 was first identified for providing resistance to the rye stem rust pathogen (Puccinia graminis f. sp. secalis). A subsequent study determined that Rpg5 is required for rpg4-mediated resistance to the wheat stem rust pathogen (P. graminis f. sp. tritici) including pathotype TTKSK ("Ug99"), which poses a major threat to global wheat and barley production. Based on the effectiveness of Rpg5 against P. graminis f. sp. tritici and P. graminis f. sp. secalis, we assessed whether it also conferred resistance to the oat stem rust pathogen (P. graminis f. sp. avenae). A barley F8 recombinant inbred line (RIL) population was produced by crossing 'Q21861' (Rpg1 and Rpg5) with '73-G1' (Rpg1), which is susceptible to P. graminis f. sp. avenae, P. graminis f. sp. secalis, and some pathotypes of P. graminis f. sp. tritici. Seedling tests were performed on the F8 RIL population using Australian pathotypes of P. graminis f. sp. tritici, P. graminis f. sp. secalis, P. graminis f. sp. avenae, and a putative somatic hybrid between P. graminis f. sp. tritici and P. graminis f. sp. secalis known as the 'Scabrum' rust. Segregation in the responses to all rust isolates for the RILs was identical (50 resistant: 52 susceptible), and fitted a 1:1 ratio (X2=0.039, P=0.843), indicating that resistance to all isolates was monogenetically inherited. Screening of the RILs and the parental lines with perfect markers for the functional Rpg1 and Rpg5 resistance alleles indicated that Rpg1 was fixed, while Rpg5 was positive in all resistant lines and negative in all susceptible lines. This suggests that different formae speciales of P. graminis may share common effectors, and that the Rpg5 locus confers resistance to both P. graminis f. sp. tritici and P. graminis f. sp. secalis and the heterologous formae speciales of P. graminis, P. graminis f. sp. avenae.
DOI: 10.1094/PHYTO-08-14-0224-R
PubMed: 25870923
Links to Exploration step
pubmed:25870923Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Resistance to Puccinia graminis f. sp. avenae in Barley Is Associated with the Rpg5 Locus.</title><author><name sortKey="Dracatos, Peter" sort="Dracatos, Peter" uniqKey="Dracatos P" first="Peter" last="Dracatos">Peter Dracatos</name><affiliation><nlm:affiliation>First, second, and fourth authors: The University of Sydney, Plant Breeding Institute Cobbitty, Private Bag 4011, Narellan, NSW, 2567, Australia; and third author: Cereal Research Centre, Agriculture & Agri-Food Canada, Winnipeg, MB, Canada.</nlm:affiliation></affiliation></author><author><name sortKey="Singh, Davinder" sort="Singh, Davinder" uniqKey="Singh D" first="Davinder" last="Singh">Davinder Singh</name></author><author><name sortKey="Fetch, Tom" sort="Fetch, Tom" uniqKey="Fetch T" first="Tom" last="Fetch">Tom Fetch</name></author><author><name sortKey="Park, Robert" sort="Park, Robert" uniqKey="Park R" first="Robert" last="Park">Robert Park</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2015">2015</date><idno type="RBID">pubmed:25870923</idno><idno type="pmid">25870923</idno><idno type="doi">10.1094/PHYTO-08-14-0224-R</idno><idno type="wicri:Area/Main/Corpus">000091</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000091</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Resistance to Puccinia graminis f. sp. avenae in Barley Is Associated with the Rpg5 Locus.</title><author><name sortKey="Dracatos, Peter" sort="Dracatos, Peter" uniqKey="Dracatos P" first="Peter" last="Dracatos">Peter Dracatos</name><affiliation><nlm:affiliation>First, second, and fourth authors: The University of Sydney, Plant Breeding Institute Cobbitty, Private Bag 4011, Narellan, NSW, 2567, Australia; and third author: Cereal Research Centre, Agriculture & Agri-Food Canada, Winnipeg, MB, Canada.</nlm:affiliation></affiliation></author><author><name sortKey="Singh, Davinder" sort="Singh, Davinder" uniqKey="Singh D" first="Davinder" last="Singh">Davinder Singh</name></author><author><name sortKey="Fetch, Tom" sort="Fetch, Tom" uniqKey="Fetch T" first="Tom" last="Fetch">Tom Fetch</name></author><author><name sortKey="Park, Robert" sort="Park, Robert" uniqKey="Park R" first="Robert" last="Park">Robert Park</name></author></analytic><series><title level="j">Phytopathology</title><idno type="ISSN">0031-949X</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alleles (MeSH)</term><term>Australia (MeSH)</term><term>Basidiomycota (physiology)</term><term>Chromosome Mapping (MeSH)</term><term>Chromosomes, Plant (genetics)</term><term>Crosses, Genetic (MeSH)</term><term>Disease Resistance (MeSH)</term><term>Genetic Markers (genetics)</term><term>Genotype (MeSH)</term><term>Hordeum (genetics)</term><term>Hordeum (immunology)</term><term>Hordeum (microbiology)</term><term>Phenotype (MeSH)</term><term>Plant Diseases (immunology)</term><term>Plant Diseases (microbiology)</term><term>Plant Leaves (genetics)</term><term>Plant Leaves (immunology)</term><term>Plant Leaves (microbiology)</term><term>Plant Proteins (genetics)</term><term>Plant Stems (genetics)</term><term>Plant Stems (immunology)</term><term>Plant Stems (microbiology)</term><term>Seedlings (genetics)</term><term>Seedlings (immunology)</term><term>Seedlings (microbiology)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Genetic Markers</term><term>Plant Proteins</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Australia</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Chromosomes, Plant</term><term>Hordeum</term><term>Plant Leaves</term><term>Plant Stems</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="immunology" xml:lang="en"><term>Hordeum</term><term>Plant Diseases</term><term>Plant Leaves</term><term>Plant Stems</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Hordeum</term><term>Plant Diseases</term><term>Plant Leaves</term><term>Plant Stems</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Basidiomycota</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Alleles</term><term>Chromosome Mapping</term><term>Crosses, Genetic</term><term>Disease Resistance</term><term>Genotype</term><term>Phenotype</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In barley, gene Rpg5 was first identified for providing resistance to the rye stem rust pathogen (Puccinia graminis f. sp. secalis). A subsequent study determined that Rpg5 is required for rpg4-mediated resistance to the wheat stem rust pathogen (P. graminis f. sp. tritici) including pathotype TTKSK ("Ug99"), which poses a major threat to global wheat and barley production. Based on the effectiveness of Rpg5 against P. graminis f. sp. tritici and P. graminis f. sp. secalis, we assessed whether it also conferred resistance to the oat stem rust pathogen (P. graminis f. sp. avenae). A barley F8 recombinant inbred line (RIL) population was produced by crossing 'Q21861' (Rpg1 and Rpg5) with '73-G1' (Rpg1), which is susceptible to P. graminis f. sp. avenae, P. graminis f. sp. secalis, and some pathotypes of P. graminis f. sp. tritici. Seedling tests were performed on the F8 RIL population using Australian pathotypes of P. graminis f. sp. tritici, P. graminis f. sp. secalis, P. graminis f. sp. avenae, and a putative somatic hybrid between P. graminis f. sp. tritici and P. graminis f. sp. secalis known as the 'Scabrum' rust. Segregation in the responses to all rust isolates for the RILs was identical (50 resistant: 52 susceptible), and fitted a 1:1 ratio (X2=0.039, P=0.843), indicating that resistance to all isolates was monogenetically inherited. Screening of the RILs and the parental lines with perfect markers for the functional Rpg1 and Rpg5 resistance alleles indicated that Rpg1 was fixed, while Rpg5 was positive in all resistant lines and negative in all susceptible lines. This suggests that different formae speciales of P. graminis may share common effectors, and that the Rpg5 locus confers resistance to both P. graminis f. sp. tritici and P. graminis f. sp. secalis and the heterologous formae speciales of P. graminis, P. graminis f. sp. avenae.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">25870923</PMID><DateCompleted><Year>2015</Year><Month>08</Month><Day>06</Day></DateCompleted><DateRevised><Year>2015</Year><Month>11</Month><Day>19</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0031-949X</ISSN><JournalIssue CitedMedium="Print"><Volume>105</Volume><Issue>4</Issue><PubDate><Year>2015</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Phytopathology</Title><ISOAbbreviation>Phytopathology</ISOAbbreviation></Journal><ArticleTitle>Resistance to Puccinia graminis f. sp. avenae in Barley Is Associated with the Rpg5 Locus.</ArticleTitle><Pagination><MedlinePgn>490-4</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1094/PHYTO-08-14-0224-R</ELocationID><Abstract><AbstractText>In barley, gene Rpg5 was first identified for providing resistance to the rye stem rust pathogen (Puccinia graminis f. sp. secalis). A subsequent study determined that Rpg5 is required for rpg4-mediated resistance to the wheat stem rust pathogen (P. graminis f. sp. tritici) including pathotype TTKSK ("Ug99"), which poses a major threat to global wheat and barley production. Based on the effectiveness of Rpg5 against P. graminis f. sp. tritici and P. graminis f. sp. secalis, we assessed whether it also conferred resistance to the oat stem rust pathogen (P. graminis f. sp. avenae). A barley F8 recombinant inbred line (RIL) population was produced by crossing 'Q21861' (Rpg1 and Rpg5) with '73-G1' (Rpg1), which is susceptible to P. graminis f. sp. avenae, P. graminis f. sp. secalis, and some pathotypes of P. graminis f. sp. tritici. Seedling tests were performed on the F8 RIL population using Australian pathotypes of P. graminis f. sp. tritici, P. graminis f. sp. secalis, P. graminis f. sp. avenae, and a putative somatic hybrid between P. graminis f. sp. tritici and P. graminis f. sp. secalis known as the 'Scabrum' rust. Segregation in the responses to all rust isolates for the RILs was identical (50 resistant: 52 susceptible), and fitted a 1:1 ratio (X2=0.039, P=0.843), indicating that resistance to all isolates was monogenetically inherited. Screening of the RILs and the parental lines with perfect markers for the functional Rpg1 and Rpg5 resistance alleles indicated that Rpg1 was fixed, while Rpg5 was positive in all resistant lines and negative in all susceptible lines. This suggests that different formae speciales of P. graminis may share common effectors, and that the Rpg5 locus confers resistance to both P. graminis f. sp. tritici and P. graminis f. sp. secalis and the heterologous formae speciales of P. graminis, P. graminis f. sp. avenae.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Dracatos</LastName><ForeName>Peter</ForeName><Initials>P</Initials><AffiliationInfo><Affiliation>First, second, and fourth authors: The University of Sydney, Plant Breeding Institute Cobbitty, Private Bag 4011, Narellan, NSW, 2567, Australia; and third author: Cereal Research Centre, Agriculture & Agri-Food Canada, Winnipeg, MB, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Singh</LastName><ForeName>Davinder</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Fetch</LastName><ForeName>Tom</ForeName><Initials>T</Initials><Suffix>Jr</Suffix></Author><Author ValidYN="Y"><LastName>Park</LastName><ForeName>Robert</ForeName><Initials>R</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></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Phytopathology</MedlineTA><NlmUniqueID>9427222</NlmUniqueID><ISSNLinking>0031-949X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005819">Genetic Markers</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000483" MajorTopicYN="N">Alleles</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001315" MajorTopicYN="N" Type="Geographic">Australia</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002874" MajorTopicYN="N">Chromosome Mapping</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032461" MajorTopicYN="N">Chromosomes, Plant</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003433" MajorTopicYN="N">Crosses, Genetic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D060467" MajorTopicYN="Y">Disease Resistance</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005819" MajorTopicYN="N">Genetic Markers</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001467" MajorTopicYN="N">Hordeum</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName><QualifierName UI="Q000276" MajorTopicYN="N">immunology</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010641" MajorTopicYN="N">Phenotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName><QualifierName UI="Q000276" MajorTopicYN="Y">immunology</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000276" MajorTopicYN="N">immunology</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000276" MajorTopicYN="N">immunology</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D036226" MajorTopicYN="N">Seedlings</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000276" MajorTopicYN="N">immunology</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate 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