The Laccaria genome: a symbiont blueprint decoded.
Identifieur interne : 002A95 ( Main/Corpus ); précédent : 002A94; suivant : 002A96The Laccaria genome: a symbiont blueprint decoded.
Auteurs : Francis Martin ; Marc-André SelosseSource :
- The New phytologist [ 1469-8137 ] ; 2008.
English descriptors
- KwdEn :
- DNA Transposable Elements (MeSH), Gene Expression Regulation, Fungal (MeSH), Genetics, Population (MeSH), Genome, Fungal (MeSH), Laccaria (genetics), Multigene Family (MeSH), Mycorrhizae (genetics), Plant Roots (microbiology), Populus (microbiology), Reproduction (MeSH), Signal Transduction (MeSH), Symbiosis (genetics).
- MESH :
- chemical : DNA Transposable Elements.
- genetics : Laccaria, Mycorrhizae, Symbiosis.
- microbiology : Plant Roots, Populus.
- Gene Expression Regulation, Fungal, Genetics, Population, Genome, Fungal, Multigene Family, Reproduction, Signal Transduction.
Abstract
The first genomic sequence for a representative of symbiotic fungi, the ectomycorrhizal basidiomycete Laccaria bicolor, has been published. The unravelling of this genome provides tantalizing hints about differences between this symbiotic fungus and its saprotrophic and pathogenic relatives. An expansion of several multigene families occurred in L. bicolor, suggesting that adaptation to symbiosis proceeded by gene duplication. Within lineage-specific genes those coding for symbiosis-regulated secreted proteins showed an up-regulated expression in ectomycorrhizas. L. bicolor is lacking enzymes involved in the degradation of plant cell wall components (cellulose, hemicellulose, pectins and pectates), preventing the symbiont from degrading host cells. By contrast, L. bicolor possesses expanded multigene families associated with hydrolysis of bacterial and microfauna polysaccharides and proteins. The genome analysis revealed the dual saprotrophic and biotrophic lifestyle of the mycorrhizal fungus that enables it to grow within both soil and living plant roots. The next stages will involve finer-scale investigation of gene networks to reveal the details of the general patterns now uncovered at the genomic level. The acceptance of L. bicolor as a model organism for symbiosis genetics will, however, depend strongly on the availability of additional genetic, genomic and molecular biological resources, such as gene inactivation procedures.
DOI: 10.1111/j.1469-8137.2008.02613.x
PubMed: 19138220
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pubmed:19138220Le document en format XML
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The unravelling of this genome provides tantalizing hints about differences between this symbiotic fungus and its saprotrophic and pathogenic relatives. An expansion of several multigene families occurred in L. bicolor, suggesting that adaptation to symbiosis proceeded by gene duplication. Within lineage-specific genes those coding for symbiosis-regulated secreted proteins showed an up-regulated expression in ectomycorrhizas. L. bicolor is lacking enzymes involved in the degradation of plant cell wall components (cellulose, hemicellulose, pectins and pectates), preventing the symbiont from degrading host cells. By contrast, L. bicolor possesses expanded multigene families associated with hydrolysis of bacterial and microfauna polysaccharides and proteins. The genome analysis revealed the dual saprotrophic and biotrophic lifestyle of the mycorrhizal fungus that enables it to grow within both soil and living plant roots. The next stages will involve finer-scale investigation of gene networks to reveal the details of the general patterns now uncovered at the genomic level. The acceptance of L. bicolor as a model organism for symbiosis genetics will, however, depend strongly on the availability of additional genetic, genomic and molecular biological resources, such as gene inactivation procedures.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19138220</PMID><DateCompleted><Year>2009</Year><Month>03</Month><Day>03</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>30</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1469-8137</ISSN><JournalIssue CitedMedium="Internet"><Volume>180</Volume><Issue>2</Issue><PubDate><Year>2008</Year></PubDate></JournalIssue><Title>The New phytologist</Title><ISOAbbreviation>New Phytol</ISOAbbreviation></Journal><ArticleTitle>The Laccaria genome: a symbiont blueprint decoded.</ArticleTitle><Pagination><MedlinePgn>296-310</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1469-8137.2008.02613.x</ELocationID><Abstract><AbstractText>The first genomic sequence for a representative of symbiotic fungi, the ectomycorrhizal basidiomycete Laccaria bicolor, has been published. The unravelling of this genome provides tantalizing hints about differences between this symbiotic fungus and its saprotrophic and pathogenic relatives. An expansion of several multigene families occurred in L. bicolor, suggesting that adaptation to symbiosis proceeded by gene duplication. Within lineage-specific genes those coding for symbiosis-regulated secreted proteins showed an up-regulated expression in ectomycorrhizas. L. bicolor is lacking enzymes involved in the degradation of plant cell wall components (cellulose, hemicellulose, pectins and pectates), preventing the symbiont from degrading host cells. By contrast, L. bicolor possesses expanded multigene families associated with hydrolysis of bacterial and microfauna polysaccharides and proteins. The genome analysis revealed the dual saprotrophic and biotrophic lifestyle of the mycorrhizal fungus that enables it to grow within both soil and living plant roots. The next stages will involve finer-scale investigation of gene networks to reveal the details of the general patterns now uncovered at the genomic level. The acceptance of L. bicolor as a model organism for symbiosis genetics will, however, depend strongly on the availability of additional genetic, genomic and molecular biological resources, such as gene inactivation procedures.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Martin</LastName><ForeName>Francis</ForeName><Initials>F</Initials><AffiliationInfo><Affiliation>UMR1136 INRA-Nancy Université, Interactions Arbres/Micro-organismes, IFR110, Centre de Nancy, 54280 Champenoux, France. fmartin@nancy.inra.fr</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Selosse</LastName><ForeName>Marc-André</ForeName><Initials>MA</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><PublicationType UI="D016454">Review</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>New Phytol</MedlineTA><NlmUniqueID>9882884</NlmUniqueID><ISSNLinking>0028-646X</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004251">DNA Transposable Elements</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D004251" MajorTopicYN="N">DNA Transposable Elements</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D015966" MajorTopicYN="N">Gene Expression Regulation, Fungal</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005828" MajorTopicYN="N">Genetics, Population</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016681" MajorTopicYN="Y">Genome, Fungal</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D055399" MajorTopicYN="N">Laccaria</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005810" MajorTopicYN="N">Multigene Family</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012098" MajorTopicYN="N">Reproduction</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D015398" MajorTopicYN="N">Signal Transduction</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="N">Symbiosis</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading></MeshHeadingList><NumberOfReferences>103</NumberOfReferences></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>1</Month><Day>14</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>1</Month><Day>14</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>3</Month><Day>4</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19138220</ArticleId><ArticleId IdType="pii">NPH2613</ArticleId><ArticleId IdType="doi">10.1111/j.1469-8137.2008.02613.x</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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