Molecular phylogeny of truffles (Pezizales: Terfeziaceae, Tuberaceae) derived from nuclear rDNA sequence analysis.
Identifieur interne : 000283 ( Main/Exploration ); précédent : 000282; suivant : 000284Molecular phylogeny of truffles (Pezizales: Terfeziaceae, Tuberaceae) derived from nuclear rDNA sequence analysis.
Auteurs : R. Percudani [Italie] ; A. Trevisi ; A. Zambonelli ; S. OttonelloSource :
- Molecular phylogenetics and evolution [ 1055-7903 ] ; 1999.
Descripteurs français
- KwdFr :
- ADN fongique (génétique), ADN ribosomique (génétique), ARN fongique (composition chimique), ARN fongique (génétique), ARN ribosomique 18S (composition chimique), ARN ribosomique 18S (génétique), Amorces ADN (génétique), Ascomycota (classification), Ascomycota (génétique), Conformation d'acide nucléique (MeSH), Données de séquences moléculaires (MeSH), Phylogenèse (MeSH), Similitude de séquences d'acides nucléiques (MeSH), Spécificité d'espèce (MeSH), Séquence nucléotidique (MeSH).
- MESH :
- composition chimique : ARN fongique, ARN ribosomique 18S, Ascomycota.
- génétique : ADN fongique, ADN ribosomique, ARN fongique, ARN ribosomique 18S, Amorces ADN, Ascomycota.
- Conformation d'acide nucléique, Données de séquences moléculaires, Phylogenèse, Similitude de séquences d'acides nucléiques, Spécificité d'espèce, Séquence nucléotidique.
English descriptors
- KwdEn :
- Ascomycota (classification), Ascomycota (genetics), Base Sequence (MeSH), DNA Primers (genetics), DNA, Fungal (genetics), DNA, Ribosomal (genetics), Molecular Sequence Data (MeSH), Nucleic Acid Conformation (MeSH), Phylogeny (MeSH), RNA, Fungal (chemistry), RNA, Fungal (genetics), RNA, Ribosomal, 18S (chemistry), RNA, Ribosomal, 18S (genetics), Sequence Homology, Nucleic Acid (MeSH), Species Specificity (MeSH).
- MESH :
- chemical , chemistry : RNA, Fungal, RNA, Ribosomal, 18S.
- chemical , genetics : DNA Primers, DNA, Fungal, DNA, Ribosomal, RNA, Fungal, RNA, Ribosomal, 18S.
- classification : Ascomycota.
- genetics : Ascomycota.
- Base Sequence, Molecular Sequence Data, Nucleic Acid Conformation, Phylogeny, Sequence Homology, Nucleic Acid, Species Specificity.
Abstract
Extensive morphological convergence or divergence, a common occurrence in fungi, tends to obscure recognition of phylogenetic relationships among Pezizales, widespread filamentous Ascomycetes with either enclosed underground (hypogeous) or exposed (epigeous) fruit bodies, that often establish mutualistic interactions with arboreous plants. Focusing on hypogeous Pezizales commonly known as truffles, we sequenced the 18S rDNA from nine species belonging to three different families (Tuberaceae, Terfeziaceae, and Balsamiaceae). A data set consisting of 1700 secondary structure-aligned sites, including 24 homologous sequences from the GenBank DNA database and using three reconstruction methods, was employed to infer phylogenies in an interval ranging from the subordinal to the subgeneric level. As revealed by the 18S phylogenetic scheme, Balsamiaceae represent a monophyletic clade, comprising the hypogeous taxa Balsamia and Barssia, nested within Helvellaceae. Similarly, the terfeziacean genera Pachyphloeus and Terfezia constitute together with Cazia a distinct hypogeous clade nested within Pezizaceae. The lack of clustering between Terfezia arenaria and Terfezia terfezioides strongly supports the reassignment of the latter taxon to the original monotypic genus Mattirolomyces. Within Tuberaceae, which are sister to the highly evolved Helvellaceae, the genus Tuber cannot be considered monophyletic if Choiromyces is recognized. The paraphyly of Tuber and other relationships that were not supported by high bootstrap values, nor corroborated by morphological evidence, were supported by a parallel analysis of the faster evolving internal transcribed spacer (ITS) rDNA. Distinct episodes of fruit body morphology shifts are discernable in the 18S rDNA phylogenetic tree. In all cases, the shift from an epigeous to a hypogeous form is the most parsimonious interpretation of character transformation, without any instance of character reversal.
DOI: 10.1006/mpev.1999.0638
PubMed: 10508550
Affiliations:
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Focusing on hypogeous Pezizales commonly known as truffles, we sequenced the 18S rDNA from nine species belonging to three different families (Tuberaceae, Terfeziaceae, and Balsamiaceae). A data set consisting of 1700 secondary structure-aligned sites, including 24 homologous sequences from the GenBank DNA database and using three reconstruction methods, was employed to infer phylogenies in an interval ranging from the subordinal to the subgeneric level. As revealed by the 18S phylogenetic scheme, Balsamiaceae represent a monophyletic clade, comprising the hypogeous taxa Balsamia and Barssia, nested within Helvellaceae. Similarly, the terfeziacean genera Pachyphloeus and Terfezia constitute together with Cazia a distinct hypogeous clade nested within Pezizaceae. The lack of clustering between Terfezia arenaria and Terfezia terfezioides strongly supports the reassignment of the latter taxon to the original monotypic genus Mattirolomyces. Within Tuberaceae, which are sister to the highly evolved Helvellaceae, the genus Tuber cannot be considered monophyletic if Choiromyces is recognized. The paraphyly of Tuber and other relationships that were not supported by high bootstrap values, nor corroborated by morphological evidence, were supported by a parallel analysis of the faster evolving internal transcribed spacer (ITS) rDNA. Distinct episodes of fruit body morphology shifts are discernable in the 18S rDNA phylogenetic tree. In all cases, the shift from an epigeous to a hypogeous form is the most parsimonious interpretation of character transformation, without any instance of character reversal.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">10508550</PMID><DateCompleted><Year>1999</Year><Month>12</Month><Day>06</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1055-7903</ISSN><JournalIssue CitedMedium="Print"><Volume>13</Volume><Issue>1</Issue><PubDate><Year>1999</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Molecular phylogenetics and evolution</Title></Journal><ArticleTitle>Molecular phylogeny of truffles (Pezizales: Terfeziaceae, Tuberaceae) derived from nuclear rDNA sequence analysis.</ArticleTitle><Pagination><MedlinePgn>169-80</MedlinePgn></Pagination><Abstract><AbstractText>Extensive morphological convergence or divergence, a common occurrence in fungi, tends to obscure recognition of phylogenetic relationships among Pezizales, widespread filamentous Ascomycetes with either enclosed underground (hypogeous) or exposed (epigeous) fruit bodies, that often establish mutualistic interactions with arboreous plants. Focusing on hypogeous Pezizales commonly known as truffles, we sequenced the 18S rDNA from nine species belonging to three different families (Tuberaceae, Terfeziaceae, and Balsamiaceae). A data set consisting of 1700 secondary structure-aligned sites, including 24 homologous sequences from the GenBank DNA database and using three reconstruction methods, was employed to infer phylogenies in an interval ranging from the subordinal to the subgeneric level. As revealed by the 18S phylogenetic scheme, Balsamiaceae represent a monophyletic clade, comprising the hypogeous taxa Balsamia and Barssia, nested within Helvellaceae. Similarly, the terfeziacean genera Pachyphloeus and Terfezia constitute together with Cazia a distinct hypogeous clade nested within Pezizaceae. The lack of clustering between Terfezia arenaria and Terfezia terfezioides strongly supports the reassignment of the latter taxon to the original monotypic genus Mattirolomyces. Within Tuberaceae, which are sister to the highly evolved Helvellaceae, the genus Tuber cannot be considered monophyletic if Choiromyces is recognized. The paraphyly of Tuber and other relationships that were not supported by high bootstrap values, nor corroborated by morphological evidence, were supported by a parallel analysis of the faster evolving internal transcribed spacer (ITS) rDNA. Distinct episodes of fruit body morphology shifts are discernable in the 18S rDNA phylogenetic tree. In all cases, the shift from an epigeous to a hypogeous form is the most parsimonious interpretation of character transformation, without any instance of character reversal.</AbstractText><CopyrightInformation>Copyright 1999 Academic Press.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Percudani</LastName><ForeName>R</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Istituto di Scienze Biochimiche, Università di Parma, Parma, I-43100, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Trevisi</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Zambonelli</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Ottonello</LastName><ForeName>S</ForeName><Initials>S</Initials></Author></AuthorList><Language>eng</Language><DataBankList 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PubStatus="medline"><Year>1999</Year><Month>10</Month><Day>6</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1999</Year><Month>10</Month><Day>6</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">10508550</ArticleId><ArticleId IdType="doi">10.1006/mpev.1999.0638</ArticleId><ArticleId IdType="pii">S1055-7903(99)90638-3</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Italie</li></country></list><tree><noCountry><name sortKey="Ottonello, S" sort="Ottonello, S" uniqKey="Ottonello S" first="S" last="Ottonello">S. Ottonello</name><name sortKey="Trevisi, A" sort="Trevisi, A" uniqKey="Trevisi A" first="A" last="Trevisi">A. Trevisi</name><name sortKey="Zambonelli, A" sort="Zambonelli, A" uniqKey="Zambonelli A" first="A" last="Zambonelli">A. Zambonelli</name></noCountry><country name="Italie"><noRegion><name sortKey="Percudani, R" sort="Percudani, R" uniqKey="Percudani R" first="R" last="Percudani">R. Percudani</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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