Genome size variation in the pine fusiform rust pathogen Cronartium quercuum f.sp. fusiforme as determined by flow cytometry.
Identifieur interne : 000796 ( Main/Curation ); précédent : 000795; suivant : 000797Genome size variation in the pine fusiform rust pathogen Cronartium quercuum f.sp. fusiforme as determined by flow cytometry.
Auteurs : Claire L. Anderson [États-Unis] ; Thomas L. Kubisiak ; C Dana Nelson ; Jason A. Smith ; John M. DavisSource :
- Mycologia [ 0027-5514 ]
Descripteurs français
- KwdFr :
- MESH :
- génétique : Basidiomycota.
- isolement et purification : Basidiomycota.
- microbiologie : Maladies des plantes, Pinus.
- Cytométrie en flux, Génome fongique, Haploïdie, Variation génétique.
English descriptors
- KwdEn :
- MESH :
- genetics : Basidiomycota.
- isolation & purification : Basidiomycota.
- microbiology : Pinus, Plant Diseases.
- Flow Cytometry, Genetic Variation, Genome, Fungal, Haploidy.
Abstract
The genome size of the pine fusiform rust pathogen Cronartium quercuum f.sp. fusiforme (Cqf) was determined by flow cytometric analysis of propidium iodide-stained, intact haploid pycniospores with haploid spores of two genetically well characterized fungal species, Sclerotinia sclerotiorum and Puccinia graminis f.sp. tritici, as size standards. The Cqf haploid genome was estimated at ~90 Mb, similar to other Pucciniales species for which reference genome sequences are available. Twenty-three Cqf pycniospore samples were compared that comprised three samples obtained from naturally occurring pine galls and 20 samples obtained after artificial inoculation with parental isolates and their progeny. Significant variation in genome size (>10% of mean) was detected among unrelated as well as sibling Cqf samples. The unexpected plasticity in Cqf genome size observed among sibling samples is likely to be driven by meiosis between parental genomes that differ in size.
DOI: 10.3852/10-040
PubMed: 20943541
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The Cqf haploid genome was estimated at ~90 Mb, similar to other Pucciniales species for which reference genome sequences are available. Twenty-three Cqf pycniospore samples were compared that comprised three samples obtained from naturally occurring pine galls and 20 samples obtained after artificial inoculation with parental isolates and their progeny. Significant variation in genome size (>10% of mean) was detected among unrelated as well as sibling Cqf samples. The unexpected plasticity in Cqf genome size observed among sibling samples is likely to be driven by meiosis between parental genomes that differ in size.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">20943541</PMID><DateCompleted><Year>2010</Year><Month>12</Month><Day>07</Day></DateCompleted><DateRevised><Year>2010</Year><Month>10</Month><Day>15</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0027-5514</ISSN><JournalIssue CitedMedium="Print"><Volume>102</Volume><Issue>6</Issue><PubDate><MedlineDate>2010 Nov-Dec</MedlineDate></PubDate></JournalIssue><Title>Mycologia</Title><ISOAbbreviation>Mycologia</ISOAbbreviation></Journal><ArticleTitle>Genome size variation in the pine fusiform rust pathogen Cronartium quercuum f.sp. fusiforme as determined by flow cytometry.</ArticleTitle><Pagination><MedlinePgn>1295-302</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3852/10-040</ELocationID><Abstract><AbstractText>The genome size of the pine fusiform rust pathogen Cronartium quercuum f.sp. fusiforme (Cqf) was determined by flow cytometric analysis of propidium iodide-stained, intact haploid pycniospores with haploid spores of two genetically well characterized fungal species, Sclerotinia sclerotiorum and Puccinia graminis f.sp. tritici, as size standards. The Cqf haploid genome was estimated at ~90 Mb, similar to other Pucciniales species for which reference genome sequences are available. Twenty-three Cqf pycniospore samples were compared that comprised three samples obtained from naturally occurring pine galls and 20 samples obtained after artificial inoculation with parental isolates and their progeny. Significant variation in genome size (>10% of mean) was detected among unrelated as well as sibling Cqf samples. The unexpected plasticity in Cqf genome size observed among sibling samples is likely to be driven by meiosis between parental genomes that differ in size.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Anderson</LastName><ForeName>Claire L</ForeName><Initials>CL</Initials><AffiliationInfo><Affiliation>School of Forest Resources and Conservation, P.O. 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