Cucurbits powdery mildew race identity and reaction of melon genotypes

Detalhes bibliográficos
Autor(a) principal: Rabelo, Hudson de Oliveira
Data de Publicação: 2018
Outros Autores: Santos, Lucas da Silva, Diniz, Guilherme Matos Martins, Marin, Marcus Vinícius, Braz, Leila Trevisan, McCreight, James Donald
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/49537
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 genotypesIdentificação de raças de oídio das cucurbitáceas e reação de genótipos de meloeiroCucumis meloPodosphaera xanthiigenetic resistancephysiologic races.Cucumis meloPodosphaera xanthiiresistência genéticaraças fisiológicas.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.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.Escola de Agronomia - Universidade Federal de Goiás2018-01-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/49537Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 47, n. 4, Oct./Dec. 2017; 440-447Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 47, n. 4, out./dez. 2017; 440-447Pesquisa Agropecuária Tropical; v. 47, n. 4, out./dez. 2017; 440-4471983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/49537/25044Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessRabelo, Hudson de OliveiraSantos, Lucas da SilvaDiniz, Guilherme Matos MartinsMarin, Marcus ViníciusBraz, Leila TrevisanMcCreight, James Donald2020-07-13T18:53:52Zoai:ojs.revistas.ufg.br:article/49537Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:18.392941Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Cucurbits powdery mildew race identity and reaction of melon genotypes
Identificação de raças de oídio das cucurbitáceas e reação de genótipos de meloeiro
title Cucurbits powdery mildew race identity and reaction of melon genotypes
spellingShingle Cucurbits powdery mildew race identity and reaction of melon genotypes
Rabelo, Hudson de Oliveira
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 genotypes
title_full Cucurbits powdery mildew race identity and reaction of melon genotypes
title_fullStr Cucurbits powdery mildew race identity and reaction of melon genotypes
title_full_unstemmed Cucurbits powdery mildew race identity and reaction of melon genotypes
title_sort Cucurbits powdery mildew race identity and reaction of melon genotypes
author Rabelo, Hudson de Oliveira
author_facet Rabelo, Hudson de Oliveira
Santos, Lucas da Silva
Diniz, Guilherme Matos Martins
Marin, Marcus Vinícius
Braz, Leila Trevisan
McCreight, James Donald
author_role author
author2 Santos, Lucas da Silva
Diniz, Guilherme Matos Martins
Marin, Marcus Vinícius
Braz, Leila Trevisan
McCreight, James Donald
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Rabelo, Hudson de Oliveira
Santos, Lucas da Silva
Diniz, Guilherme Matos Martins
Marin, Marcus Vinícius
Braz, Leila Trevisan
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 2018
dc.date.none.fl_str_mv 2018-01-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/49537
url https://revistas.ufg.br/pat/article/view/49537
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/49537/25044
dc.rights.driver.fl_str_mv Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 47, n. 4, Oct./Dec. 2017; 440-447
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 47, n. 4, out./dez. 2017; 440-447
Pesquisa Agropecuária Tropical; v. 47, n. 4, out./dez. 2017; 440-447
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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