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dc.contributor.author
Fumero, María Verónica
dc.contributor.author
Yue, Wei
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Chiotta, María Laura
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Chulze, Sofia Noemi
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Leslie, John.F.
dc.contributor.author
Toomajian Christopher
dc.date.available
2021-04-20T17:32:18Z
dc.date.issued
2020-12
dc.identifier.citation
Fumero, María Verónica; Yue, Wei; Chiotta, María Laura; Chulze, Sofia Noemi; Leslie, John.F.; et al.; Divergence and gene flow between Fusarium subglutinans and F. temperatum isolated from maize in Argentina; American Phytopathological Society; Phytopathology; 111; 1; 12-2020; 170-183
dc.identifier.issn
0031-949X
dc.identifier.uri
http://hdl.handle.net/11336/130507
dc.description.abstract
Fusarium subglutinans and F. temperatum are two important fungal pathogens of maize whose distinctness as separate species has been difficult to assess. We isolated strains of these species from commercial and native maize varieties in Argentina and sequenced >28,000 loci to estimate genetic variation in the sample. Our objectives were to measure genetic divergence between the species, infer demographic parameters related to their split, and describe the population structure of the sample. When analyzed together, over 30% of each species' polymorphic sites (>2,500 sites) segregate as polymorphisms in the other. Demographic modeling confirmed the species split predated maize domestication, but subsequent between-species gene flow has occurred, with gene flow from F. subglutinans into F. temperatum greater than gene flow in the reverse direction. In F. subglutinans, little evidence exists for substructure or recent selective sweeps, but there is evidence for limited sexual reproduction. In F. temperatum, there is clear evidence for population substructure and signals of abundant recent selective sweeps, with sexual reproduction probably less common than in F. subglutinans. Both genetic variation and the relative number of polymorphisms shared between species increase near the telomeres of all 12 chromosomes, where genes related to plant-pathogen interactions often are located. Our results suggest that species boundaries between closely related Fusarium species can be semipermeable and merit further study. Such semipermeability could facilitate unanticipated genetic exchange between species and enable quicker permanent responses to changes in the agro-ecosystem, e.g., pathogen-resistant host varieties, new chemical and biological control agents, and agronomic practices.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Phytopathological Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
FUNGAL PATHOGENS
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FUSARIUM SUBGLUTINANS
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FUSARIUM TEMPERATUM
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GBS MARKERS
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GENE FLOW
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GENOMICS
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GENETICS
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POPULATION BIOLOGY
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POPULATION STRUCTURE
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SPECIES BOUNDARY
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Biología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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Micología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Divergence and gene flow between Fusarium subglutinans and F. temperatum isolated from maize in Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-02-10T20:44:30Z
dc.journal.volume
111
dc.journal.number
1
dc.journal.pagination
170-183
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Fumero, María Verónica. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
dc.description.fil
Fil: Yue, Wei. Kansas State University; Estados Unidos
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Fil: Chiotta, María Laura. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
dc.description.fil
Fil: Chulze, Sofia Noemi. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
dc.description.fil
Fil: Leslie, John.F.. Kansas State University; Estados Unidos
dc.description.fil
Fil: Toomajian Christopher. Kansas State University; Estados Unidos
dc.journal.title
Phytopathology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://apsjournals.apsnet.org/doi/abs/10.1094/PHYTO-09-20-0434-FI
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1094/PHYTO-09-20-0434-FI
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