Long-distance gene flow and recombination shape the evolutionary history of a maize pathogen.

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dc.contributorFLÁVIA ROGÉRIO, UNIVERSIDAD DE SALAMANCA
dc.contributorCOCK VAN OOSTERHOUT, UNIVERSITY OF EAST ANGLIA
dc.contributorSTÉPHANE DE MITA, UNIVERSITÉ DE MONTPELLIER
dc.contributorFRANCISCO BORJA CUEVAS-FERNÁNDEZ, UNIVERSIDAD DE SALAMANCA
dc.contributorPABLO GARCÍA-RODRÍGUEZ, UNIVERSIDAD DE SALAMANCA
dc.contributorSIOLY BECERRA, UNIVERSIDAD DE SALAMANCA
dc.contributorSILVIA GUTIÉRREZ-SÁNCHEZ, UNIVERSIDAD DE SALAMANCA
dc.contributorANDRÉS G. JACQUAT, UNIVERSIDAD NACIONAL DE CÓRDOBA
dc.contributorWAGNER BETTIOL, CNPMA
dc.contributorGUILHERME KENICHI HOSAKA, UNIVERSIDADE DE SÃO PAULO
dc.contributorSOFIA B. ULLA, UNIVERSIDAD NACIONAL DE CÓRDOBA
dc.contributorJÜRG HILTBRUNNER, AGROSCOPE
dc.contributorROGELIO SANTIAGO, CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS
dc.contributorPEDRO REVILLA, CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS
dc.contributorJOSÉ S. DAMBOLENA, UNIVERSIDAD NACIONAL DE CÓRDOBA
dc.contributorJOSÉ L. VICENTE-VILLARDÓN, UNIVERSIDAD DE SALAMANCA
dc.contributorIVICA BUHINIČEK, BC INSTITUTE FOR BREEDING AND PRODUCTION OF FIELD CROPS
dc.contributorSERENELLA A. SUKNO, UNIVERSIDAD DE SALAMANCA
dc.contributorMICHAEL R. THON, UNIVERSIDAD DE SALAMANCA.
dc.creatorROGÉRIO, F.
dc.creatorOOSTERHOUT, C. V.
dc.creatorMITA, S. de
dc.creatorCUEVAS-FERNÁNDEZ, F. B.
dc.creatorGARCÍA-RODRÍGUEZ, P.
dc.creatorBECERRA, S.
dc.creatorGUTIÉRREZ-SÁNCHEZ, S.
dc.creatorJACQUAT, A. G.
dc.creatorBETTIOL, W.
dc.creatorHOSAKA, G. K.
dc.creatorULLA, S. B.
dc.creatorHILTBRUNNER, J.
dc.creatorSANTIAGO, R.
dc.creatorREVILLA, P.
dc.creatorDAMBOLENA, J. S.
dc.creatorVICENTE-VILLARDÓN, J. L.
dc.creatorBUHINIČEK, I.
dc.creatorSUKNO, S. A.
dc.creatorTHON, M. R.
dc.date2025-11-19T14:48:36Z
dc.date2025-11-19T14:48:36Z
dc.date2025-11-19
dc.date2025
dc.date.accessioned2026-07-07T05:10:47Z
dc.descriptionAbstract: The evolutionary history of crop pathogens is shaped by a complex interaction of natural and anthropogenic factors. The fungus Colletotrichumgraminicola causes maize anthracnose which results in significant yield losses worldwide. We conducted a comprehensive investigation into the evolutionary genomics of C.graminicola using a collection of 212 isolates from 17 countries across five continents. Genomic analyses supported the existence of three geographically isolated genetic lineages, with a significant pattern of isolation by distance. We identified two distinct gene flow patterns, driven by short- and long-distance dispersal, likely resulting from the natural spread of the pathogen and the exchange of contaminated seeds. We present evidence of genetic introgression between lineages, suggesting a long history of recombination. We identified significant recombination events coalescing at distinct points in time, with the North American lineage displaying evidence of the most ancient recombination. Demographic modelling has indicated that North America is an intermediate between Brazil, Europe and an ancestral, unsampled source population, which is hypothesised to be Mesoamerican. Our analyses revealed that the global genomic structure of C.graminicola is shaped by geographic differentiation driven by long-distance migration and a long history of recombination and introgression. We show historical relationships amongst these lineages, identifying a potential route for fungal spread, with the North American population emerging ancestrally, followed sequentially by the Brazilian and European populations. Our research indicates that the European lineage is more virulent, which has implications for the potential emergence of new outbreaks of maize anthracnose in Europe.
dc.identifierIMA Fungus, v.16, e138888, 2025.
dc.identifier2210-6359
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1181702
dc.identifierhttps://doi.org/10.3897/imafungus.16.138888
dc.identifier.urihttp://hdl.handle.net/123456789/483093
dc.languageeng
dc.rightsopenAccess
dc.subjectColletotrichumgraminicola
dc.subjectGenetic introgression
dc.subjectIsolation by distance
dc.subjectPopulation genomics
dc.subjectRestriction site-associated DNA sequencing
dc.subjectMilho
dc.subjectDoença Fúngica
dc.subjectColletotrichum Graminicola
dc.subjectRecombinação
dc.subjectVariação Genética
dc.subjectCorn
dc.subjectFungal diseases of plants
dc.subjectAnthracnose
dc.subjectIntrogression
dc.subjectGenomics
dc.titleLong-distance gene flow and recombination shape the evolutionary history of a maize pathogen.
dc.typeArtigo de periódico

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