Cucurbits powdery mildew race identity and reaction of melon genotypes1

Detalhes bibliográficos
Autor(a) principal: Rabelo, Hudson De Oliveira [UNESP]
Data de Publicação: 2017
Outros Autores: Santos, Lucas Da Silva [UNESP], Diniz, Guilherme Matos Martins [UNESP], Marin, Marcus Vinicius [UNESP], Braz, Leila Trevisan [UNESP], Mccreight, James Donald
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1983-40632017v4749537
http://hdl.handle.net/11449/213338
Resumo: Genetic resistance is one of the most suitable strategies to control cucurbit powdery mildew (CPM) on melon, incited by Podosphaera xanthii or Golovinomyces orontii. However, many races of these pathogens have been reported worldwide in recent years, what may compromise the effectiveness of this method. Thus, annual surveys of CPM races and the screening of germplasm for new sources of genetic resistance provide a vital support to melon breeding programs. This study aimed at identifying a natural population of CPM race under greenhouse conditions, as well as evaluating the reaction of local and exotic melon germplasm for CPM-resistance. CPM race identity was based on the reaction of eight race differentials: Védrantais, Nantais Oblong, PMR 45, PMR 5, WMR 29, Edisto 47, PI 414723 and PI 124111. Fifty-nine melon genotypes were evaluated, 53 of them being germplasm accessions, and six net melon elite-inbred lines, besides two net melon-type cultivars (Louis and Fantasy). Plants were evaluated using a visual scale for leaf lesions. The causal pathogen was confirmed to be P. xanthii, based on the presence of fibrosin bodies in conidia and the complete resistance response of winter melon (Benincasa hispida). Race 4 was identified for the first time in the São Paulo state, Brazil. Genotypes A19, A30, A32, C67, C384, JAB-3, JAB-7, JAB-9, JAB-11, JAB-18, JAB-20 and Solarking showed to be resistant to the race 4.
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spelling Cucurbits powdery mildew race identity and reaction of melon genotypes1Identificação de raças de oídio das cucurbitáceas e reação de genótipos de meloeiroCucumis meloPodosphaera xanthiigenetic resistancephysiologic racesCucumis meloPodosphaera xanthiiresistência genéticaraças fisiológicasGenetic resistance is one of the most suitable strategies to control cucurbit powdery mildew (CPM) on melon, incited by Podosphaera xanthii or Golovinomyces orontii. However, many races of these pathogens have been reported worldwide in recent years, what may compromise the effectiveness of this method. Thus, annual surveys of CPM races and the screening of germplasm for new sources of genetic resistance provide a vital support to melon breeding programs. This study aimed at identifying a natural population of CPM race under greenhouse conditions, as well as evaluating the reaction of local and exotic melon germplasm for CPM-resistance. CPM race identity was based on the reaction of eight race differentials: Védrantais, Nantais Oblong, PMR 45, PMR 5, WMR 29, Edisto 47, PI 414723 and PI 124111. Fifty-nine melon genotypes were evaluated, 53 of them being germplasm accessions, and six net melon elite-inbred lines, besides two net melon-type cultivars (Louis and Fantasy). Plants were evaluated using a visual scale for leaf lesions. The causal pathogen was confirmed to be P. xanthii, based on the presence of fibrosin bodies in conidia and the complete resistance response of winter melon (Benincasa hispida). Race 4 was identified for the first time in the São Paulo state, Brazil. Genotypes A19, A30, A32, C67, C384, JAB-3, JAB-7, JAB-9, JAB-11, JAB-18, JAB-20 and Solarking showed to be resistant to the race 4.O uso de resistência genética é um dos métodos mais adequados para o controle de oídio das cucurbitáceas em melão, causado por Podosphaera xanthii ou Golovinomyces orontii. Contudo, muitas raças desses patógenos têm sido descobertas, o que pode comprometer a eficácia desse método. Fazem-se, então, necessários o constante monitoramento de raças de oídio e a busca por novas fontes de resistência. Objetivou-se identificar em nível de raça uma população natural de oídio das cucurbitáceas em casa-de-vegetação, bem como avaliar a reação de genótipos locais e exóticos de meloeiro à raça identificada. A identificação da raça foi baseada na reação de oito linhagens diferenciadoras (PI 414723, PMR 45, PMR 5, WMR 29, Edisto 47, Nantais Oblong, PI 124111 e Védrantais). Foram avaliados 59 genótipos de meloeiro, sendo 53 destes acessos de germoplasma e seis linhagens de melão rendilhado, além de duas cultivares (Louis e Fantasy). As plantas foram avaliadas com base em escala visual para lesões nas folhas. A espécie P. xanthii foi confirmada como o agente causal, pela visualização de corpos de fibrosina nos conídios e pela resistência da abóbora d’água (Benincasa hispida). A raça 4 foi identificada pela primeira vez no estado de São Paulo. Os genótipos A19, A30, A32, C67, C384, JAB-3, JAB-7, JAB-9, JAB-11, JAB-18, JAB-20 e Solarking mostraram-se resistentes à raça 4.Universidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Agrárias e VeterináriasUnited States Department of Agriculture, Agricultural Research ServiceUniversidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Agrárias e VeterináriasEscola de Agronomia e Engenharia de Alimentos/UFGUniversidade Estadual Paulista (Unesp)United States Department of AgricultureRabelo, Hudson De Oliveira [UNESP]Santos, Lucas Da Silva [UNESP]Diniz, Guilherme Matos Martins [UNESP]Marin, Marcus Vinicius [UNESP]Braz, Leila Trevisan [UNESP]Mccreight, James Donald2021-07-14T10:53:45Z2021-07-14T10:53:45Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article440-447application/pdfhttp://dx.doi.org/10.1590/1983-40632017v4749537Pesquisa Agropecuária Tropical. Escola de Agronomia e Engenharia de Alimentos/UFG, v. 47, n. 4, p. 440-447, 2017.1983-4063http://hdl.handle.net/11449/21333810.1590/1983-40632017v4749537S1983-40632017000400440S1983-40632017000400440.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccess2024-06-07T13:55:34Zoai:repositorio.unesp.br:11449/213338Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:41:39.525886Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Cucurbits powdery mildew race identity and reaction of melon genotypes1
Identificação de raças de oídio das cucurbitáceas e reação de genótipos de meloeiro
title Cucurbits powdery mildew race identity and reaction of melon genotypes1
spellingShingle Cucurbits powdery mildew race identity and reaction of melon genotypes1
Rabelo, Hudson De Oliveira [UNESP]
Cucumis melo
Podosphaera xanthii
genetic resistance
physiologic races
Cucumis melo
Podosphaera xanthii
resistência genética
raças fisiológicas
title_short Cucurbits powdery mildew race identity and reaction of melon genotypes1
title_full Cucurbits powdery mildew race identity and reaction of melon genotypes1
title_fullStr Cucurbits powdery mildew race identity and reaction of melon genotypes1
title_full_unstemmed Cucurbits powdery mildew race identity and reaction of melon genotypes1
title_sort Cucurbits powdery mildew race identity and reaction of melon genotypes1
author Rabelo, Hudson De Oliveira [UNESP]
author_facet Rabelo, Hudson De Oliveira [UNESP]
Santos, Lucas Da Silva [UNESP]
Diniz, Guilherme Matos Martins [UNESP]
Marin, Marcus Vinicius [UNESP]
Braz, Leila Trevisan [UNESP]
Mccreight, James Donald
author_role author
author2 Santos, Lucas Da Silva [UNESP]
Diniz, Guilherme Matos Martins [UNESP]
Marin, Marcus Vinicius [UNESP]
Braz, Leila Trevisan [UNESP]
Mccreight, James Donald
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
United States Department of Agriculture
dc.contributor.author.fl_str_mv Rabelo, Hudson De Oliveira [UNESP]
Santos, Lucas Da Silva [UNESP]
Diniz, Guilherme Matos Martins [UNESP]
Marin, Marcus Vinicius [UNESP]
Braz, Leila Trevisan [UNESP]
Mccreight, James Donald
dc.subject.por.fl_str_mv Cucumis melo
Podosphaera xanthii
genetic resistance
physiologic races
Cucumis melo
Podosphaera xanthii
resistência genética
raças fisiológicas
topic Cucumis melo
Podosphaera xanthii
genetic resistance
physiologic races
Cucumis melo
Podosphaera xanthii
resistência genética
raças fisiológicas
description Genetic resistance is one of the most suitable strategies to control cucurbit powdery mildew (CPM) on melon, incited by Podosphaera xanthii or Golovinomyces orontii. However, many races of these pathogens have been reported worldwide in recent years, what may compromise the effectiveness of this method. Thus, annual surveys of CPM races and the screening of germplasm for new sources of genetic resistance provide a vital support to melon breeding programs. This study aimed at identifying a natural population of CPM race under greenhouse conditions, as well as evaluating the reaction of local and exotic melon germplasm for CPM-resistance. CPM race identity was based on the reaction of eight race differentials: Védrantais, Nantais Oblong, PMR 45, PMR 5, WMR 29, Edisto 47, PI 414723 and PI 124111. Fifty-nine melon genotypes were evaluated, 53 of them being germplasm accessions, and six net melon elite-inbred lines, besides two net melon-type cultivars (Louis and Fantasy). Plants were evaluated using a visual scale for leaf lesions. The causal pathogen was confirmed to be P. xanthii, based on the presence of fibrosin bodies in conidia and the complete resistance response of winter melon (Benincasa hispida). Race 4 was identified for the first time in the São Paulo state, Brazil. Genotypes A19, A30, A32, C67, C384, JAB-3, JAB-7, JAB-9, JAB-11, JAB-18, JAB-20 and Solarking showed to be resistant to the race 4.
publishDate 2017
dc.date.none.fl_str_mv 2017
2021-07-14T10:53:45Z
2021-07-14T10:53:45Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/1983-40632017v4749537
Pesquisa Agropecuária Tropical. Escola de Agronomia e Engenharia de Alimentos/UFG, v. 47, n. 4, p. 440-447, 2017.
1983-4063
http://hdl.handle.net/11449/213338
10.1590/1983-40632017v4749537
S1983-40632017000400440
S1983-40632017000400440.pdf
url http://dx.doi.org/10.1590/1983-40632017v4749537
http://hdl.handle.net/11449/213338
identifier_str_mv Pesquisa Agropecuária Tropical. Escola de Agronomia e Engenharia de Alimentos/UFG, v. 47, n. 4, p. 440-447, 2017.
1983-4063
10.1590/1983-40632017v4749537
S1983-40632017000400440
S1983-40632017000400440.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Pesquisa Agropecuária Tropical
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 440-447
application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia e Engenharia de Alimentos/UFG
publisher.none.fl_str_mv Escola de Agronomia e Engenharia de Alimentos/UFG
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128550987890688

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