Genetic basis of aboveground productivity in two native Populus species and their hybrids.
Identifieur interne : 003618 ( Main/Exploration ); précédent : 003617; suivant : 003619Genetic basis of aboveground productivity in two native Populus species and their hybrids.
Auteurs : Nathan R. Lojewski [États-Unis] ; Dylan G. Fischer ; Joseph K. Bailey ; Jennifer A. Schweitzer ; Thomas G. Whitham ; Stephen C. HartSource :
- Tree physiology [ 0829-318X ] ; 2009.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Populus.
- génétique : Populus.
- Génotype, Hybridation génétique, Spécificité d'espèce, Utah, Écosystème.
English descriptors
- KwdEn :
- MESH :
- geographic : Utah.
- genetics : Populus.
- growth & development : Populus.
- Ecosystem, Genotype, Hybridization, Genetic, Species Specificity.
Abstract
Demonstration of genetic control over riparian tree productivity has major implications for responses of riparian systems to shifting environmental conditions and effects of genetics on ecosystems in general. We used field studies and common gardens, applying both molecular and quantitative techniques, to compare plot-level tree aboveground net primary productivity (ANPP(tree)) and individual tree growth rate constants in relation to plant genetic identity in two naturally occurring Populus tree species and their hybrids. In field comparisons of four cross types (Populus fremontii S. Wats., Populus angustifolia James, F(1) hybrids and backcross hybrids) across 11 natural stands, productivity was greatest for P. fremontii trees, followed by hybrids and lowest in P. angustifolia. A similar pattern was observed in four common gardens across a 290 m elevation and 100 km environmental gradient. Despite a doubling in productivity across the common gardens, the relative differences among the cross types remained constant. Using clonal replicates in a common garden, we found ANPP(tree) to be a heritable plant trait (i.e., broad-sense heritability), such that plant genetic factors explained between 38% and 82% of the variation in ANPP(tree). Furthermore, analysis of the genetic composition among individual tree genotypes using restriction fragment length polymorphism molecular markers showed that genetically similar trees also exhibited similar ANPP(tree). These findings indicate strong genetic contributions to natural variation in ANPP with important ecological implications.
DOI: 10.1093/treephys/tpp046
PubMed: 19578030
Affiliations:
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Bailey</name></author><author><name sortKey="Schweitzer, Jennifer A" sort="Schweitzer, Jennifer A" uniqKey="Schweitzer J" first="Jennifer A" last="Schweitzer">Jennifer A. Schweitzer</name></author><author><name sortKey="Whitham, Thomas G" sort="Whitham, Thomas G" uniqKey="Whitham T" first="Thomas G" last="Whitham">Thomas G. Whitham</name></author><author><name sortKey="Hart, Stephen C" sort="Hart, Stephen C" uniqKey="Hart S" first="Stephen C" last="Hart">Stephen C. 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Hart</name></author></analytic><series><title level="j">Tree physiology</title><idno type="ISSN">0829-318X</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ecosystem (MeSH)</term><term>Genotype (MeSH)</term><term>Hybridization, Genetic (MeSH)</term><term>Populus (genetics)</term><term>Populus (growth & development)</term><term>Species Specificity (MeSH)</term><term>Utah (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Génotype (MeSH)</term><term>Hybridation génétique (MeSH)</term><term>Populus (croissance et développement)</term><term>Populus (génétique)</term><term>Spécificité d'espèce (MeSH)</term><term>Utah (MeSH)</term><term>Écosystème (MeSH)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Utah</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Populus</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Ecosystem</term><term>Genotype</term><term>Hybridization, Genetic</term><term>Species Specificity</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Génotype</term><term>Hybridation génétique</term><term>Spécificité d'espèce</term><term>Utah</term><term>Écosystème</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Demonstration of genetic control over riparian tree productivity has major implications for responses of riparian systems to shifting environmental conditions and effects of genetics on ecosystems in general. We used field studies and common gardens, applying both molecular and quantitative techniques, to compare plot-level tree aboveground net primary productivity (ANPP(tree)) and individual tree growth rate constants in relation to plant genetic identity in two naturally occurring Populus tree species and their hybrids. In field comparisons of four cross types (Populus fremontii S. Wats., Populus angustifolia James, F(1) hybrids and backcross hybrids) across 11 natural stands, productivity was greatest for P. fremontii trees, followed by hybrids and lowest in P. angustifolia. A similar pattern was observed in four common gardens across a 290 m elevation and 100 km environmental gradient. Despite a doubling in productivity across the common gardens, the relative differences among the cross types remained constant. Using clonal replicates in a common garden, we found ANPP(tree) to be a heritable plant trait (i.e., broad-sense heritability), such that plant genetic factors explained between 38% and 82% of the variation in ANPP(tree). Furthermore, analysis of the genetic composition among individual tree genotypes using restriction fragment length polymorphism molecular markers showed that genetically similar trees also exhibited similar ANPP(tree). These findings indicate strong genetic contributions to natural variation in ANPP with important ecological implications.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19578030</PMID><DateCompleted><Year>2009</Year><Month>12</Month><Day>16</Day></DateCompleted><DateRevised><Year>2009</Year><Month>08</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0829-318X</ISSN><JournalIssue CitedMedium="Print"><Volume>29</Volume><Issue>9</Issue><PubDate><Year>2009</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Genetic basis of aboveground productivity in two native Populus species and their hybrids.</ArticleTitle><Pagination><MedlinePgn>1133-42</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1093/treephys/tpp046</ELocationID><Abstract><AbstractText>Demonstration of genetic control over riparian tree productivity has major implications for responses of riparian systems to shifting environmental conditions and effects of genetics on ecosystems in general. We used field studies and common gardens, applying both molecular and quantitative techniques, to compare plot-level tree aboveground net primary productivity (ANPP(tree)) and individual tree growth rate constants in relation to plant genetic identity in two naturally occurring Populus tree species and their hybrids. In field comparisons of four cross types (Populus fremontii S. Wats., Populus angustifolia James, F(1) hybrids and backcross hybrids) across 11 natural stands, productivity was greatest for P. fremontii trees, followed by hybrids and lowest in P. angustifolia. A similar pattern was observed in four common gardens across a 290 m elevation and 100 km environmental gradient. Despite a doubling in productivity across the common gardens, the relative differences among the cross types remained constant. Using clonal replicates in a common garden, we found ANPP(tree) to be a heritable plant trait (i.e., broad-sense heritability), such that plant genetic factors explained between 38% and 82% of the variation in ANPP(tree). Furthermore, analysis of the genetic composition among individual tree genotypes using restriction fragment length polymorphism molecular markers showed that genetically similar trees also exhibited similar ANPP(tree). These findings indicate strong genetic contributions to natural variation in ANPP with important ecological implications.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Lojewski</LastName><ForeName>Nathan R</ForeName><Initials>NR</Initials><AffiliationInfo><Affiliation>School of Forestry, Northern Arizona University, Flagstaff, AZ 86011, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fischer</LastName><ForeName>Dylan G</ForeName><Initials>DG</Initials></Author><Author ValidYN="Y"><LastName>Bailey</LastName><ForeName>Joseph K</ForeName><Initials>JK</Initials></Author><Author ValidYN="Y"><LastName>Schweitzer</LastName><ForeName>Jennifer A</ForeName><Initials>JA</Initials></Author><Author ValidYN="Y"><LastName>Whitham</LastName><ForeName>Thomas G</ForeName><Initials>TG</Initials></Author><Author ValidYN="Y"><LastName>Hart</LastName><ForeName>Stephen C</ForeName><Initials>SC</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D003160">Comparative Study</PublicationType><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>2009</Year><Month>07</Month><Day>02</Day></ArticleDate></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D017753" MajorTopicYN="N">Ecosystem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006824" MajorTopicYN="Y">Hybridization, Genetic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014589" MajorTopicYN="N" Type="Geographic">Utah</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>7</Month><Day>7</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>7</Month><Day>7</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>12</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19578030</ArticleId><ArticleId IdType="pii">tpp046</ArticleId><ArticleId IdType="doi">10.1093/treephys/tpp046</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Arizona</li></region></list><tree><noCountry><name sortKey="Bailey, Joseph K" sort="Bailey, Joseph K" uniqKey="Bailey J" first="Joseph K" last="Bailey">Joseph K. Bailey</name><name sortKey="Fischer, Dylan G" sort="Fischer, Dylan G" uniqKey="Fischer D" first="Dylan G" last="Fischer">Dylan G. Fischer</name><name sortKey="Hart, Stephen C" sort="Hart, Stephen C" uniqKey="Hart S" first="Stephen C" last="Hart">Stephen C. Hart</name><name sortKey="Schweitzer, Jennifer A" sort="Schweitzer, Jennifer A" uniqKey="Schweitzer J" first="Jennifer A" last="Schweitzer">Jennifer A. Schweitzer</name><name sortKey="Whitham, Thomas G" sort="Whitham, Thomas G" uniqKey="Whitham T" first="Thomas G" last="Whitham">Thomas G. Whitham</name></noCountry><country name="États-Unis"><region name="Arizona"><name sortKey="Lojewski, Nathan R" sort="Lojewski, Nathan R" uniqKey="Lojewski N" first="Nathan R" last="Lojewski">Nathan R. Lojewski</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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