Widespread triploidy in Western North American aspen (Populus tremuloides).
Identifieur interne : 002851 ( Main/Exploration ); précédent : 002850; suivant : 002852Widespread triploidy in Western North American aspen (Populus tremuloides).
Auteurs : Karen E. Mock [États-Unis] ; Colin M. Callahan ; M Nurul Islam-Faridi ; John D. Shaw ; Hardeep S. Rai ; Stewart C. Sanderson ; Carol A. Rowe ; Ronald J. Ryel ; Michael D. Madritch ; Richard S. Gardner ; Paul G. WolfSource :
- PloS one [ 1932-6203 ] ; 2012.
Descripteurs français
- KwdFr :
- MESH :
- génétique : Populus, Répétitions microsatellites.
- Amérique du Nord, Triploïdie.
English descriptors
- KwdEn :
- MESH :
- geographic : North America.
- genetics : Microsatellite Repeats, Populus.
- Triploidy.
Abstract
We document high rates of triploidy in aspen (Populus tremuloides) across the western USA (up to 69% of genets), and ask whether the incidence of triploidy across the species range corresponds with latitude, glacial history (as has been documented in other species), climate, or regional variance in clone size. Using a combination of microsatellite genotyping, flow cytometry, and cytology, we demonstrate that triploidy is highest in unglaciated, drought-prone regions of North America, where the largest clone sizes have been reported for this species. While we cannot completely rule out a low incidence of undetected aneuploidy, tetraploidy or duplicated loci, our evidence suggests that these phenomena are unlikely to be significant contributors to our observed patterns. We suggest that the distribution of triploid aspen is due to a positive synergy between triploidy and ecological factors driving clonality. Although triploids are expected to have low fertility, they are hypothesized to be an evolutionary link to sexual tetraploidy. Thus, interactions between clonality and polyploidy may be a broadly important component of geographic speciation patterns in perennial plants. Further, cytotypes are expected to show physiological and structural differences which may influence susceptibility to ecological factors such as drought, and we suggest that cytotype may be a significant and previously overlooked factor in recent patterns of high aspen mortality in the southwestern portion of the species range. Finally, triploidy should be carefully considered as a source of variance in genomic and ecological studies of aspen, particularly in western U.S. landscapes.
DOI: 10.1371/journal.pone.0048406
PubMed: 23119006
PubMed Central: PMC3485218
Affiliations:
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Callahan</name></author><author><name sortKey="Islam Faridi, M Nurul" sort="Islam Faridi, M Nurul" uniqKey="Islam Faridi M" first="M Nurul" last="Islam-Faridi">M Nurul Islam-Faridi</name></author><author><name sortKey="Shaw, John D" sort="Shaw, John D" uniqKey="Shaw J" first="John D" last="Shaw">John D. Shaw</name></author><author><name sortKey="Rai, Hardeep S" sort="Rai, Hardeep S" uniqKey="Rai H" first="Hardeep S" last="Rai">Hardeep S. Rai</name></author><author><name sortKey="Sanderson, Stewart C" sort="Sanderson, Stewart C" uniqKey="Sanderson S" first="Stewart C" last="Sanderson">Stewart C. Sanderson</name></author><author><name sortKey="Rowe, Carol A" sort="Rowe, Carol A" uniqKey="Rowe C" first="Carol A" last="Rowe">Carol A. Rowe</name></author><author><name sortKey="Ryel, Ronald J" sort="Ryel, Ronald J" uniqKey="Ryel R" first="Ronald J" last="Ryel">Ronald J. Ryel</name></author><author><name sortKey="Madritch, Michael D" sort="Madritch, Michael D" uniqKey="Madritch M" first="Michael D" last="Madritch">Michael D. Madritch</name></author><author><name sortKey="Gardner, Richard S" sort="Gardner, Richard S" uniqKey="Gardner R" first="Richard S" last="Gardner">Richard S. Gardner</name></author><author><name sortKey="Wolf, Paul G" sort="Wolf, Paul G" uniqKey="Wolf P" first="Paul G" last="Wolf">Paul G. 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Mock</name><affiliation wicri:level="2"><nlm:affiliation>Department of Wildland Resources, Utah State University, Logan, Utah, United States of America. karen.mock@usu.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Wildland Resources, Utah State University, Logan, Utah</wicri:regionArea><placeName><region type="state">Utah</region></placeName></affiliation></author><author><name sortKey="Callahan, Colin M" sort="Callahan, Colin M" uniqKey="Callahan C" first="Colin M" last="Callahan">Colin M. Callahan</name></author><author><name sortKey="Islam Faridi, M Nurul" sort="Islam Faridi, M Nurul" uniqKey="Islam Faridi M" first="M Nurul" last="Islam-Faridi">M Nurul Islam-Faridi</name></author><author><name sortKey="Shaw, John D" sort="Shaw, John D" uniqKey="Shaw J" first="John D" last="Shaw">John D. Shaw</name></author><author><name sortKey="Rai, Hardeep S" sort="Rai, Hardeep S" uniqKey="Rai H" first="Hardeep S" last="Rai">Hardeep S. Rai</name></author><author><name sortKey="Sanderson, Stewart C" sort="Sanderson, Stewart C" uniqKey="Sanderson S" first="Stewart C" last="Sanderson">Stewart C. Sanderson</name></author><author><name sortKey="Rowe, Carol A" sort="Rowe, Carol A" uniqKey="Rowe C" first="Carol A" last="Rowe">Carol A. Rowe</name></author><author><name sortKey="Ryel, Ronald J" sort="Ryel, Ronald J" uniqKey="Ryel R" first="Ronald J" last="Ryel">Ronald J. Ryel</name></author><author><name sortKey="Madritch, Michael D" sort="Madritch, Michael D" uniqKey="Madritch M" first="Michael D" last="Madritch">Michael D. Madritch</name></author><author><name sortKey="Gardner, Richard S" sort="Gardner, Richard S" uniqKey="Gardner R" first="Richard S" last="Gardner">Richard S. Gardner</name></author><author><name sortKey="Wolf, Paul G" sort="Wolf, Paul G" uniqKey="Wolf P" first="Paul G" last="Wolf">Paul G. Wolf</name></author></analytic><series><title level="j">PloS one</title><idno type="eISSN">1932-6203</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Microsatellite Repeats (genetics)</term><term>North America (MeSH)</term><term>Populus (genetics)</term><term>Triploidy (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Amérique du Nord (MeSH)</term><term>Populus (génétique)</term><term>Répétitions microsatellites (génétique)</term><term>Triploïdie (MeSH)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>North America</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Microsatellite Repeats</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Populus</term><term>Répétitions microsatellites</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Triploidy</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Amérique du Nord</term><term>Triploïdie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We document high rates of triploidy in aspen (Populus tremuloides) across the western USA (up to 69% of genets), and ask whether the incidence of triploidy across the species range corresponds with latitude, glacial history (as has been documented in other species), climate, or regional variance in clone size. Using a combination of microsatellite genotyping, flow cytometry, and cytology, we demonstrate that triploidy is highest in unglaciated, drought-prone regions of North America, where the largest clone sizes have been reported for this species. While we cannot completely rule out a low incidence of undetected aneuploidy, tetraploidy or duplicated loci, our evidence suggests that these phenomena are unlikely to be significant contributors to our observed patterns. We suggest that the distribution of triploid aspen is due to a positive synergy between triploidy and ecological factors driving clonality. Although triploids are expected to have low fertility, they are hypothesized to be an evolutionary link to sexual tetraploidy. Thus, interactions between clonality and polyploidy may be a broadly important component of geographic speciation patterns in perennial plants. Further, cytotypes are expected to show physiological and structural differences which may influence susceptibility to ecological factors such as drought, and we suggest that cytotype may be a significant and previously overlooked factor in recent patterns of high aspen mortality in the southwestern portion of the species range. Finally, triploidy should be carefully considered as a source of variance in genomic and ecological studies of aspen, particularly in western U.S. landscapes.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23119006</PMID><DateCompleted><Year>2013</Year><Month>04</Month><Day>12</Day></DateCompleted><DateRevised><Year>2020</Year><Month>03</Month><Day>05</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1932-6203</ISSN><JournalIssue CitedMedium="Internet"><Volume>7</Volume><Issue>10</Issue><PubDate><Year>2012</Year></PubDate></JournalIssue><Title>PloS one</Title><ISOAbbreviation>PLoS One</ISOAbbreviation></Journal><ArticleTitle>Widespread triploidy in Western North American aspen (Populus tremuloides).</ArticleTitle><Pagination><MedlinePgn>e48406</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1371/journal.pone.0048406</ELocationID><Abstract><AbstractText>We document high rates of triploidy in aspen (Populus tremuloides) across the western USA (up to 69% of genets), and ask whether the incidence of triploidy across the species range corresponds with latitude, glacial history (as has been documented in other species), climate, or regional variance in clone size. Using a combination of microsatellite genotyping, flow cytometry, and cytology, we demonstrate that triploidy is highest in unglaciated, drought-prone regions of North America, where the largest clone sizes have been reported for this species. While we cannot completely rule out a low incidence of undetected aneuploidy, tetraploidy or duplicated loci, our evidence suggests that these phenomena are unlikely to be significant contributors to our observed patterns. We suggest that the distribution of triploid aspen is due to a positive synergy between triploidy and ecological factors driving clonality. Although triploids are expected to have low fertility, they are hypothesized to be an evolutionary link to sexual tetraploidy. Thus, interactions between clonality and polyploidy may be a broadly important component of geographic speciation patterns in perennial plants. Further, cytotypes are expected to show physiological and structural differences which may influence susceptibility to ecological factors such as drought, and we suggest that cytotype may be a significant and previously overlooked factor in recent patterns of high aspen mortality in the southwestern portion of the species range. Finally, triploidy should be carefully considered as a source of variance in genomic and ecological studies of aspen, particularly in western U.S. landscapes.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Mock</LastName><ForeName>Karen E</ForeName><Initials>KE</Initials><AffiliationInfo><Affiliation>Department of Wildland Resources, Utah State University, Logan, Utah, United States of America. karen.mock@usu.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Callahan</LastName><ForeName>Colin M</ForeName><Initials>CM</Initials></Author><Author ValidYN="Y"><LastName>Islam-Faridi</LastName><ForeName>M Nurul</ForeName><Initials>MN</Initials></Author><Author ValidYN="Y"><LastName>Shaw</LastName><ForeName>John D</ForeName><Initials>JD</Initials></Author><Author ValidYN="Y"><LastName>Rai</LastName><ForeName>Hardeep S</ForeName><Initials>HS</Initials></Author><Author ValidYN="Y"><LastName>Sanderson</LastName><ForeName>Stewart C</ForeName><Initials>SC</Initials></Author><Author ValidYN="Y"><LastName>Rowe</LastName><ForeName>Carol A</ForeName><Initials>CA</Initials></Author><Author ValidYN="Y"><LastName>Ryel</LastName><ForeName>Ronald J</ForeName><Initials>RJ</Initials></Author><Author ValidYN="Y"><LastName>Madritch</LastName><ForeName>Michael D</ForeName><Initials>MD</Initials></Author><Author ValidYN="Y"><LastName>Gardner</LastName><ForeName>Richard S</ForeName><Initials>RS</Initials></Author><Author ValidYN="Y"><LastName>Wolf</LastName><ForeName>Paul G</ForeName><Initials>PG</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>10</Month><Day>31</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>PLoS One</MedlineTA><NlmUniqueID>101285081</NlmUniqueID><ISSNLinking>1932-6203</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018895" MajorTopicYN="N">Microsatellite Repeats</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009656" MajorTopicYN="N" Type="Geographic">North America</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D057885" MajorTopicYN="Y">Triploidy</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate 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Callahan</name><name sortKey="Gardner, Richard S" sort="Gardner, Richard S" uniqKey="Gardner R" first="Richard S" last="Gardner">Richard S. Gardner</name><name sortKey="Islam Faridi, M Nurul" sort="Islam Faridi, M Nurul" uniqKey="Islam Faridi M" first="M Nurul" last="Islam-Faridi">M Nurul Islam-Faridi</name><name sortKey="Madritch, Michael D" sort="Madritch, Michael D" uniqKey="Madritch M" first="Michael D" last="Madritch">Michael D. Madritch</name><name sortKey="Rai, Hardeep S" sort="Rai, Hardeep S" uniqKey="Rai H" first="Hardeep S" last="Rai">Hardeep S. Rai</name><name sortKey="Rowe, Carol A" sort="Rowe, Carol A" uniqKey="Rowe C" first="Carol A" last="Rowe">Carol A. Rowe</name><name sortKey="Ryel, Ronald J" sort="Ryel, Ronald J" uniqKey="Ryel R" first="Ronald J" last="Ryel">Ronald J. Ryel</name><name sortKey="Sanderson, Stewart C" sort="Sanderson, Stewart C" uniqKey="Sanderson S" first="Stewart C" last="Sanderson">Stewart C. Sanderson</name><name sortKey="Shaw, John D" sort="Shaw, John D" uniqKey="Shaw J" first="John D" last="Shaw">John D. Shaw</name><name sortKey="Wolf, Paul G" sort="Wolf, Paul G" uniqKey="Wolf P" first="Paul G" last="Wolf">Paul G. Wolf</name></noCountry><country name="États-Unis"><region name="Utah"><name sortKey="Mock, Karen E" sort="Mock, Karen E" uniqKey="Mock K" first="Karen E" last="Mock">Karen E. Mock</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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