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Genome re-sequencing and simple sequence repeat markers reveal the existence of divergent lineages in the Canadian Puccinia striiformis f. sp. tritici population with extensive DNA methylation.

Identifieur interne : 000369 ( Main/Exploration ); précédent : 000368; suivant : 000370

Genome re-sequencing and simple sequence repeat markers reveal the existence of divergent lineages in the Canadian Puccinia striiformis f. sp. tritici population with extensive DNA methylation.

Auteurs : Gurcharn S. Brar [Canada] ; Sajid Ali [Pakistan] ; Dinah Qutob [Canada] ; Stephen Ambrose [Canada] ; Kun Lou [Canada] ; Ron Maclachlan [Canada] ; Curtis J. Pozniak [Canada] ; Yong-Bi Fu [Canada] ; Andrew G. Sharpe [Canada] ; Hadley R. Kutcher [Canada]

Source :

RBID : pubmed:29411480

Descripteurs français

English descriptors

Abstract

Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease in Canada. The worldwide genetic structure of Pst populations have been characterized, excluding Canada. Here, we elucidated the genetic structure of the western Canadian Pst population using molecular markers, revealing the presence of four divergent lineages with predominantly clonal structure. In the worldwide context, two previously reported lineages were identified: PstS0 (22%), representing an old Northwestern-European and PstS1 (35%), an invasive warm-temperature adapted. Additionally, two new, unreported lineages, PstPr (9%) and PstS1-related (35%), were detected, which produced more telia than other lineages and had double the number of unique recombination events. The PstPr was a recent invasion, and likely evolved in a diverse, recombinant population as it was closely related to the PstS5, PstS7/Warrior, PstS8/Kranich, and PstS9 lineages originating from sexually recombining populations in the centre of diversity. The DNA methylation analysis revealed DNA-methyltransferase1-homologs, providing compelling evidence for epigenetic regulation and as a first report, an average of ∼5%, 5hmC in the Puccinia epigenome merits further investigation. The divergent lineages in the Canadian Pst population with the potential for genetic recombination, as well as epigenetic regulation needs consideration in the context of pathogen adaptation and management.

DOI: 10.1111/1462-2920.14067
PubMed: 29411480


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<div type="abstract" xml:lang="en">Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease in Canada. The worldwide genetic structure of Pst populations have been characterized, excluding Canada. Here, we elucidated the genetic structure of the western Canadian Pst population using molecular markers, revealing the presence of four divergent lineages with predominantly clonal structure. In the worldwide context, two previously reported lineages were identified: PstS0 (22%), representing an old Northwestern-European and PstS1 (35%), an invasive warm-temperature adapted. Additionally, two new, unreported lineages, PstPr (9%) and PstS1-related (35%), were detected, which produced more telia than other lineages and had double the number of unique recombination events. The PstPr was a recent invasion, and likely evolved in a diverse, recombinant population as it was closely related to the PstS5, PstS7/Warrior, PstS8/Kranich, and PstS9 lineages originating from sexually recombining populations in the centre of diversity. The DNA methylation analysis revealed DNA-methyltransferase1-homologs, providing compelling evidence for epigenetic regulation and as a first report, an average of ∼5%, 5hmC in the Puccinia epigenome merits further investigation. The divergent lineages in the Canadian Pst population with the potential for genetic recombination, as well as epigenetic regulation needs consideration in the context of pathogen adaptation and management.</div>
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<AbstractText>Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease in Canada. The worldwide genetic structure of Pst populations have been characterized, excluding Canada. Here, we elucidated the genetic structure of the western Canadian Pst population using molecular markers, revealing the presence of four divergent lineages with predominantly clonal structure. In the worldwide context, two previously reported lineages were identified: PstS0 (22%), representing an old Northwestern-European and PstS1 (35%), an invasive warm-temperature adapted. Additionally, two new, unreported lineages, PstPr (9%) and PstS1-related (35%), were detected, which produced more telia than other lineages and had double the number of unique recombination events. The PstPr was a recent invasion, and likely evolved in a diverse, recombinant population as it was closely related to the PstS5, PstS7/Warrior, PstS8/Kranich, and PstS9 lineages originating from sexually recombining populations in the centre of diversity. The DNA methylation analysis revealed DNA-methyltransferase1-homologs, providing compelling evidence for epigenetic regulation and as a first report, an average of ∼5%, 5hmC in the Puccinia epigenome merits further investigation. The divergent lineages in the Canadian Pst population with the potential for genetic recombination, as well as epigenetic regulation needs consideration in the context of pathogen adaptation and management.</AbstractText>
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<Affiliation>Crop Development Centre/Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Dr, Saskatoon, SK, S7N 5A8, Canada.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Fu</LastName>
<ForeName>Yong-Bi</ForeName>
<Initials>YB</Initials>
<AffiliationInfo>
<Affiliation>Plant Gene Resources of Canada, Agriculture & Agri-Food Canada- Saskatoon Research and Development Centre, 107 Science Place, Saskatoon, SK, S7N 0X2, Canada.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Sharpe</LastName>
<ForeName>Andrew G</ForeName>
<Initials>AG</Initials>
<AffiliationInfo>
<Affiliation>Global Institute for Food Security, University of Saskatchewan, 110 Gymnasium Place, Saskatoon, SK, S7N 0W9, Canada.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Kutcher</LastName>
<ForeName>Hadley R</ForeName>
<Initials>HR</Initials>
<AffiliationInfo>
<Affiliation>Crop Development Centre/Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Dr, Saskatoon, SK, S7N 5A8, Canada.</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>
<ArticleDate DateType="Electronic">
<Year>2018</Year>
<Month>03</Month>
<Day>25</Day>
</ArticleDate>
</Article>
<MedlineJournalInfo>
<Country>England</Country>
<MedlineTA>Environ Microbiol</MedlineTA>
<NlmUniqueID>100883692</NlmUniqueID>
<ISSNLinking>1462-2912</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D005819">Genetic Markers</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
<MeshHeadingList>
<MeshHeading>
<DescriptorName UI="D001487" MajorTopicYN="N">Basidiomycota</DescriptorName>
<QualifierName UI="Q000145" MajorTopicYN="Y">classification</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D002170" MajorTopicYN="N" Type="Geographic">Canada</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D002874" MajorTopicYN="N">Chromosome Mapping</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D019175" MajorTopicYN="N">DNA Methylation</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D044127" MajorTopicYN="N">Epigenesis, Genetic</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D005819" MajorTopicYN="N">Genetic Markers</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D018895" MajorTopicYN="N">Microsatellite Repeats</DescriptorName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName>
<QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014908" MajorTopicYN="N">Triticum</DescriptorName>
<QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName>
</MeshHeading>
</MeshHeadingList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="received">
<Year>2017</Year>
<Month>11</Month>
<Day>24</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="revised">
<Year>2018</Year>
<Month>01</Month>
<Day>30</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted">
<Year>2018</Year>
<Month>02</Month>
<Day>02</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2018</Year>
<Month>2</Month>
<Day>8</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline">
<Year>2019</Year>
<Month>6</Month>
<Day>27</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez">
<Year>2018</Year>
<Month>2</Month>
<Day>8</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">29411480</ArticleId>
<ArticleId IdType="doi">10.1111/1462-2920.14067</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations>
<list>
<country>
<li>Canada</li>
<li>Pakistan</li>
</country>
</list>
<tree>
<country name="Canada">
<noRegion>
<name sortKey="Brar, Gurcharn S" sort="Brar, Gurcharn S" uniqKey="Brar G" first="Gurcharn S" last="Brar">Gurcharn S. Brar</name>
</noRegion>
<name sortKey="Ambrose, Stephen" sort="Ambrose, Stephen" uniqKey="Ambrose S" first="Stephen" last="Ambrose">Stephen Ambrose</name>
<name sortKey="Fu, Yong Bi" sort="Fu, Yong Bi" uniqKey="Fu Y" first="Yong-Bi" last="Fu">Yong-Bi Fu</name>
<name sortKey="Kutcher, Hadley R" sort="Kutcher, Hadley R" uniqKey="Kutcher H" first="Hadley R" last="Kutcher">Hadley R. Kutcher</name>
<name sortKey="Lou, Kun" sort="Lou, Kun" uniqKey="Lou K" first="Kun" last="Lou">Kun Lou</name>
<name sortKey="Maclachlan, Ron" sort="Maclachlan, Ron" uniqKey="Maclachlan R" first="Ron" last="Maclachlan">Ron Maclachlan</name>
<name sortKey="Pozniak, Curtis J" sort="Pozniak, Curtis J" uniqKey="Pozniak C" first="Curtis J" last="Pozniak">Curtis J. Pozniak</name>
<name sortKey="Qutob, Dinah" sort="Qutob, Dinah" uniqKey="Qutob D" first="Dinah" last="Qutob">Dinah Qutob</name>
<name sortKey="Sharpe, Andrew G" sort="Sharpe, Andrew G" uniqKey="Sharpe A" first="Andrew G" last="Sharpe">Andrew G. Sharpe</name>
</country>
<country name="Pakistan">
<noRegion>
<name sortKey="Ali, Sajid" sort="Ali, Sajid" uniqKey="Ali S" first="Sajid" last="Ali">Sajid Ali</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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