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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
03/01/2023 |
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Data da última atualização: |
03/01/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
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. |
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Afiliação: |
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. |
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Título: |
Migration and genetic recombination shape the global population structure of Colletotrichum graminicola, the causal agent of maize anthracnose. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: CONGRESO DE LA SOCIEDADE ESPAÑOLA DE FITOPATOLOGIA, 20., 2022, València. [Libro de resúmenes...] València: Sociedad Española de Fitopatología, 2022. Póster 172. |
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Páginas: |
p. 290. |
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Idioma: |
Português |
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Conteúdo: |
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. MenosMaize 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 recomb... Mostrar Tudo |
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Palavras-Chave: |
Maize anthracnos. |
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Thesagro: |
Colletotrichum Graminicola; Milho. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150563/1/RA-BettiolW-XX-Congresso-SEF-2022-Valencia.pdf
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Marc: |
LEADER 02933nam a2200397 a 4500
001 2150563
005 2023-01-03
008 2022 bl uuuu u00u1 u #d
100 1 $aROGERIO, F.
245 $aMigration and genetic recombination shape the global population structure of Colletotrichum graminicola, the causal agent of maize anthracnose.$h[electronic resource]
260 $aIn: CONGRESO DE LA SOCIEDADE ESPAÑOLA DE FITOPATOLOGIA, 20., 2022, València. [Libro de resúmenes...] València: Sociedad Española de Fitopatología, 2022. Póster 172.$c2022
300 $ap. 290.
520 $aMaize 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.
650 $aColletotrichum Graminicola
650 $aMilho
653 $aMaize anthracnos
700 1 $aBARONCELLI, R.
700 1 $aCUEVAS-FERNÁNDEZ, F. B..
700 1 $aBECERRA. S.
700 1 $aCROUCH, J.
700 1 $aBETTIOL, W.
700 1 $aAZCÁRATE-PERIL, M. A.
700 1 $aMALAPI-WIGHT, M.
700 1 $aORTEGA, V.
700 1 $aBETRAN, J.
700 1 $aTENUTA, A.
700 1 $aDAMBOLENA, J. S.
700 1 $aESKER, P. D.
700 1 $aREVILLA, P.
700 1 $aJACKSON-ZIEMS, T. A.
700 1 $aHILTBRUNNER, J.
700 1 $aMUNKVOLD, G.
700 1 $aBUHINICEK, I.
700 1 $aVICENTE-VILLARDÓN, J. L.
700 1 $aSUKNO, S. A.
700 1 $aTHON, M. R.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
05/11/2019 |
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Data da última atualização: |
13/08/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
VERONEZE JÚNIOR, V.; MARTINS, M.; MC LEOD, L.; SOUZA, K. R. D.; SANTOS FILHO, P. R.; MAGALHAES, P. C.; CARVALHO, D. T.; SANTOS, M. H.; SOUZA, T. C. |
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Afiliação: |
Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; PAULO CESAR MAGALHAES, CNPMS; Universidade Federal de Alfenas; Universidade Federal de Viçosa; Universidade Federal de Alfenas. |
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Título: |
Leaf application of chitosan and physiological evaluation of maize hybrids contrasting for drought tolerance under water restriction. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Brazilian Journal of Biology, v. 80, n. 3 p. 631-640, 2020. |
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DOI: |
10.1590/1519-6984.218391 |
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Idioma: |
Inglês |
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Notas: |
Publicado online em 2019. |
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Conteúdo: |
It is a fact that the regions that cultivate the most maize crop do not have fully adequate technologies to measure productivity losses caused by irregularities in water availability. The objective of this study was to evaluate the physiological characteristics of maize hybrids tolerant (DKB 390) and sensitive (BRS 1030) to drought, at V5 growth stage and under water restriction, in order to understand the mechanisms involved in the induction of tolerance to drought by chitosan in contrasting maize genotypes. Plants were cultivated in pots at a greenhouse, and chitosan 100 ppm was applied by leaf spraying. The water restriction was imposed for 10 days and then leaf gaseous exchange and chlorophyll fluorescence were evaluated. The tolerant hybrid (DKB 390) showed higher photosynthesis, stomatal conductance, carboxylation efficiency, electron transport rate, and non-photochemical quenching when chitosan was used. Plants from tolerant genotype treated with chitosan were more tolerant to water stress because there were more responsive to the biopolymer. |
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Palavras-Chave: |
Estresse hídrico; Fluorescência da clorofila; Têmpera; Troca gasosa. |
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Thesagro: |
Zea Mays. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/215284/1/Leaf-application.pdf
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Marc: |
LEADER 02004naa a2200301 a 4500
001 2113902
005 2020-08-13
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1590/1519-6984.218391$2DOI
100 1 $aVERONEZE JÚNIOR, V.
245 $aLeaf application of chitosan and physiological evaluation of maize hybrids contrasting for drought tolerance under water restriction.$h[electronic resource]
260 $c2020
500 $aPublicado online em 2019.
520 $aIt is a fact that the regions that cultivate the most maize crop do not have fully adequate technologies to measure productivity losses caused by irregularities in water availability. The objective of this study was to evaluate the physiological characteristics of maize hybrids tolerant (DKB 390) and sensitive (BRS 1030) to drought, at V5 growth stage and under water restriction, in order to understand the mechanisms involved in the induction of tolerance to drought by chitosan in contrasting maize genotypes. Plants were cultivated in pots at a greenhouse, and chitosan 100 ppm was applied by leaf spraying. The water restriction was imposed for 10 days and then leaf gaseous exchange and chlorophyll fluorescence were evaluated. The tolerant hybrid (DKB 390) showed higher photosynthesis, stomatal conductance, carboxylation efficiency, electron transport rate, and non-photochemical quenching when chitosan was used. Plants from tolerant genotype treated with chitosan were more tolerant to water stress because there were more responsive to the biopolymer.
650 $aZea Mays
653 $aEstresse hídrico
653 $aFluorescência da clorofila
653 $aTêmpera
653 $aTroca gasosa
700 1 $aMARTINS, M.
700 1 $aMC LEOD, L.
700 1 $aSOUZA, K. R. D.
700 1 $aSANTOS FILHO, P. R.
700 1 $aMAGALHAES, P. C.
700 1 $aCARVALHO, D. T.
700 1 $aSANTOS, M. H.
700 1 $aSOUZA, T. C.
773 $tBrazilian Journal of Biology$gv. 80, n. 3 p. 631-640, 2020.
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Embrapa Milho e Sorgo (CNPMS) |
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