Title:	Migration and genetic recombination shape the global population structure of Colletotrichum graminicola, the causal agent of maize anthracnose.
Authors:	ROGERIO, F. BARONCELLI, R. CUEVAS-FERNÁNDEZ, F. B.. BECERRA. S. CROUCH, J. BETTIOL, W. AZCÁRATE-PERIL, M. A. MALAPI-WIGHT, M. ORTEGA, V. BETRAN, J. TENUTA, A. DAMBOLENA, J. S. ESKER, P. D. REVILLA, P. JACKSON-ZIEMS, T. A. HILTBRUNNER, J. MUNKVOLD, G. BUHINICEK, I. VICENTE-VILLARDÓN, J. L. SUKNO, S. A. THON, M. R.
Affiliation:	FLÁVIA ROGÉRIO, Instituto de Investigación en Agrobiotecnología (CIALE), Departamento de Microbiología y Genética, Universidad de Salamanca, Spain RICARDO BARONCELLI, Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Italy FRANCISCO BORJA CUEVAS-FERNÁNDEZ, Instituto de Investigación en Agrobiotecnología (CIALE), Departamento de Microbiología y Genética, Universidad de Salamanca, Spain SIOLY BECERRA, Instituto de Investigación en Agrobiotecnología (CIALE), Departamento de Microbiología y Genética, Universidad de Salamanca, Spain JOANNE CROUCH, United States Department of Agriculture, Foreign Disease and Weed Science Unit, USA WAGNER BETTIOL, CNPMA M. ANDREA AZCÁRATE-PERIL, Center for Gastrointestinal Biology and Disease, Division of Gastroenterology and Hepatology, and UNC Microbiome Core, Department of Medicine, School of Medicine, University of North Carolina, USA MARTHA MALAPI-WIGHT, USDA-Animal and Plant Health Inspection Services, Biotechnology Regulatory Services, USA VERONIQUE ORTEGA, Syngenta Seeds La Grangette, France JAVIER BETRAN, Bayer Crop Science/Monsanto SAS, France ALBERT TENUTA, Ontario Ministry of Agriculture, Food, and Rural Affairs, University of Guelph-Ridgetown, Ridgetown, Ontario, Canada JOSÉ S. DAMBOLENA, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, IMBIV-CONICET-ICTA, Córdoba, Argentina PAUL D. ESKER, Department of Plant Pathology and Environmental Microbiology, Pennsylvania State University, State College, United States PEDRO REVILLA, Misión Biológica de Galicia, Spanish National Research Council (CSIC), Pontevedra, Spain TAMRA A. JACKSON-ZIEMS, Department of Plant Pathology, University of Nebraska–Lincoln JÜRG HILTBRUNNER, Federal Department of Economic Affairs, Zurich, Switzerland GARY MUNKVOLD, Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA IVICA BUHINICEK, Bc Institute for Breeding and Production of Field Crops, Croatia JOSÉ L. VICENTE-VILLARDÓN, Statistics Department University of Salamanca, Salamanca, Spain SERENELLA A. SUKNO, Instituto de Investigación en Agrobiotecnología (CIALE), Departamento de Microbiología y Genética, Universidad de Salamanca, Spain MICHAEL R. THON, Instituto de Investigación en Agrobiotecnología (CIALE), Departamento de Microbiología y Genética, Universidad de Salamanca, Spain.
Date Issued:	2022
Citation:	In: CONGRESO DE LA SOCIEDADE ESPAÑOLA DE FITOPATOLOGIA, 20., 2022, València. [Libro de resúmenes...] València: Sociedad Española de Fitopatología, 2022. Póster 172.
Pages:	p. 290.
Description:	Maize anthracnose, caused by the ascomycete fungus Colletotrichum graminicola, is an important crop disease worldwide. Understanding the genetic diversity and mechanisms underlying genetic variation in pathogen populations is crucial to the development of effective control strategies. The genus Colletotrichum is largely recognized as asexual, but several species have been reported to have a sexual cycle. We employed a population genomics approach to investigate the genetic diversity and reproductive biology of C. graminicola isolates infecting maize. We sequenced 108 isolates of C. graminicola collected in 14 countries using restriction site-associated DNA sequencing (RAD-Seq) and whole-genome sequencing (WGS). Clustering analyses based on single-nucleotide polymorphisms showed populational differentiation at a global scale, with three genetic groups delimited by continental origin, corresponding to the isolates from South America, Europe, and North America, compatible with short-dispersal of the pathogen, and geographic subdivision. Intra and inter-continental migration was predicted between Europe and South America, likely associated with the movement of contaminated germplasm. Low clonality and evidence of genetic recombination were detected from the analysis of linkage disequilibrium and the pairwise homoplasy index (PHI) test for clonality. Although the sexual state of C. graminicola has only been reported in lab conditions, we showed strong evidence that genetic recombination have a great impact on C. graminicola population structure, in contrast to the traditional view of C. graminicola being mainly clonal.
Thesagro:	Colletotrichum Graminicola Milho
Keywords:	Maize anthracnos
Type of Material:	Resumo em anais e proceedings
Access:	openAccess
Appears in Collections:	Resumo em anais de congresso (CNPMA)