Artículo
Population genomics provide insights into the global genetic structure of Colletotrichum graminicola, the causal agent of maize anthracnose
Rogério, Flávia; Baroncelli, Riccardo; Cuevas Fernández, Francisco Borja; Becerra, Sioly; Crouch, JoAnne; Bettiol, Wagner; Azcárate Peril, M. Andrea; Malapi Wight, Martha; Ortega, Veronique; Betran, Javier; Tenuta, Albert; Dambolena, José Sebastián
; Esker, Paul D.; Revilla, Pedro; Jackson Ziems, Tamra A.; Hiltbrunner, Jürg; Munkvold, Gary; Buhiniček, Ivica; Vicente Villardón, José L.; Sukno, Serenella A.; Thon, Michael R.
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Fecha de publicación:
19/12/2022
Editorial:
American Society for Microbiology
Revista:
mBio
ISSN:
2161-2129
e-ISSN:
2150-7511
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Understanding the genetic diversity and mechanisms underlying genetic variation in pathogen populations is crucial to the development of effective control strategies. We investigated the genetic diversity and reproductive biology of Colletotrichum graminicola isolates which infect maize by sequencing the genomes of 108 isolates collected from 14 countries using restriction site-associated DNA sequencing (RAD-seq) and wholegenome sequencing (WGS). Clustering analyses based on single-nucleotide polymorphisms revealed three genetic groups delimited by continental origin, compatible with short-dispersal of the pathogen and geographic subdivision. Intra- and intercontinental migration was observed between Europe and South America, likely associated with the movement of contaminated germplasm. Low clonality, evidence of genetic recombination, and high phenotypic diversity were detected. We show evidence that, although it is rare (possibly due to losses of sexual reproduction- and meiosis-associated genes) C. graminicola can undergo sexual recombination. Our results support the hypotheses that intra- and intercontinental pathogen migration and genetic recombination have great impacts on the C. graminicola population structure.
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Articulos(IMBIV)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Citación
Rogério, Flávia; Baroncelli, Riccardo; Cuevas Fernández, Francisco Borja; Becerra, Sioly; Crouch, JoAnne; et al.; Population genomics provide insights into the global genetic structure of Colletotrichum graminicola, the causal agent of maize anthracnose; American Society for Microbiology; mBio; 14; 1; 19-12-2022; 1-18
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