Association of genes from different sources of resistance to major cacao diseases

Detalhes bibliográficos
Autor(a) principal: Rodrigues,Giselle de Souza
Data de Publicação: 2020
Outros Autores: Pires,José Luís, Luz,Edna Dora Martins Newman
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ceres
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2020000500383
Resumo: ABSTRACT This study aimed to select genotypes resistant to witches’ broom (WB) and black pod (BP), major cacao diseases in Brazil, as well as incorporate resistance genes to moniliasis supplemented by clones EET75 and UF273, forming populations of second-cycle recurrent selection. Moniliophthora perniciosa (2 × 105 basidiospores/mL) was inoculated on 30-day-old seedlings from 72 different progenies, being assessed 60 days later, and a mixture of four isolates of Phytophthora palmivora (3 × 105 zoospores/mL) was inoculated on leaf discs from 58 progenies, observing lesions after seven days. Significant effects of progeny were observed in the tests of resistance to both diseases (p < 0.05). Scavina-6 expressed resistance to both pathogens, 26 crosses did not differ from free-pollinated progenies of Scavina-6 for WB, and ten crosses were higher and 27 similar for BP. Eight crosses were largely resistant to both diseases.
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spelling Association of genes from different sources of resistance to major cacao diseasesMoniliophthora perniciosaMoniliophthora roreriPhytophthora palmivoraplant breedingTheobroma cacaoABSTRACT This study aimed to select genotypes resistant to witches’ broom (WB) and black pod (BP), major cacao diseases in Brazil, as well as incorporate resistance genes to moniliasis supplemented by clones EET75 and UF273, forming populations of second-cycle recurrent selection. Moniliophthora perniciosa (2 × 105 basidiospores/mL) was inoculated on 30-day-old seedlings from 72 different progenies, being assessed 60 days later, and a mixture of four isolates of Phytophthora palmivora (3 × 105 zoospores/mL) was inoculated on leaf discs from 58 progenies, observing lesions after seven days. Significant effects of progeny were observed in the tests of resistance to both diseases (p < 0.05). Scavina-6 expressed resistance to both pathogens, 26 crosses did not differ from free-pollinated progenies of Scavina-6 for WB, and ten crosses were higher and 27 similar for BP. Eight crosses were largely resistant to both diseases.Universidade Federal de Viçosa2020-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2020000500383Revista Ceres v.67 n.5 2020reponame:Revista Ceresinstname:Universidade Federal de Viçosa (UFV)instacron:UFV10.1590/0034-737x202067050006info:eu-repo/semantics/openAccessRodrigues,Giselle de SouzaPires,José LuísLuz,Edna Dora Martins Newmaneng2020-09-30T00:00:00ZRevista
dc.title.none.fl_str_mv Association of genes from different sources of resistance to major cacao diseases
title Association of genes from different sources of resistance to major cacao diseases
spellingShingle Association of genes from different sources of resistance to major cacao diseases
Rodrigues,Giselle de Souza
Moniliophthora perniciosa
Moniliophthora roreri
Phytophthora palmivora
plant breeding
Theobroma cacao
title_short Association of genes from different sources of resistance to major cacao diseases
title_full Association of genes from different sources of resistance to major cacao diseases
title_fullStr Association of genes from different sources of resistance to major cacao diseases
title_full_unstemmed Association of genes from different sources of resistance to major cacao diseases
title_sort Association of genes from different sources of resistance to major cacao diseases
author Rodrigues,Giselle de Souza
author_facet Rodrigues,Giselle de Souza
Pires,José Luís
Luz,Edna Dora Martins Newman
author_role author
author2 Pires,José Luís
Luz,Edna Dora Martins Newman
author2_role author
author
dc.contributor.author.fl_str_mv Rodrigues,Giselle de Souza
Pires,José Luís
Luz,Edna Dora Martins Newman
dc.subject.por.fl_str_mv Moniliophthora perniciosa
Moniliophthora roreri
Phytophthora palmivora
plant breeding
Theobroma cacao
topic Moniliophthora perniciosa
Moniliophthora roreri
Phytophthora palmivora
plant breeding
Theobroma cacao
dc.description.none.fl_txt_mv ABSTRACT This study aimed to select genotypes resistant to witches’ broom (WB) and black pod (BP), major cacao diseases in Brazil, as well as incorporate resistance genes to moniliasis supplemented by clones EET75 and UF273, forming populations of second-cycle recurrent selection. Moniliophthora perniciosa (2 × 105 basidiospores/mL) was inoculated on 30-day-old seedlings from 72 different progenies, being assessed 60 days later, and a mixture of four isolates of Phytophthora palmivora (3 × 105 zoospores/mL) was inoculated on leaf discs from 58 progenies, observing lesions after seven days. Significant effects of progeny were observed in the tests of resistance to both diseases (p < 0.05). Scavina-6 expressed resistance to both pathogens, 26 crosses did not differ from free-pollinated progenies of Scavina-6 for WB, and ten crosses were higher and 27 similar for BP. Eight crosses were largely resistant to both diseases.
description ABSTRACT This study aimed to select genotypes resistant to witches’ broom (WB) and black pod (BP), major cacao diseases in Brazil, as well as incorporate resistance genes to moniliasis supplemented by clones EET75 and UF273, forming populations of second-cycle recurrent selection. Moniliophthora perniciosa (2 × 105 basidiospores/mL) was inoculated on 30-day-old seedlings from 72 different progenies, being assessed 60 days later, and a mixture of four isolates of Phytophthora palmivora (3 × 105 zoospores/mL) was inoculated on leaf discs from 58 progenies, observing lesions after seven days. Significant effects of progeny were observed in the tests of resistance to both diseases (p < 0.05). Scavina-6 expressed resistance to both pathogens, 26 crosses did not differ from free-pollinated progenies of Scavina-6 for WB, and ten crosses were higher and 27 similar for BP. Eight crosses were largely resistant to both diseases.
publishDate 2020
dc.date.none.fl_str_mv 2020-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2020000500383
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2020000500383
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0034-737x202067050006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa
publisher.none.fl_str_mv Universidade Federal de Viçosa
dc.source.none.fl_str_mv Revista Ceres v.67 n.5 2020
reponame:Revista Ceres
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str Revista Ceres
collection Revista Ceres
repository.name.fl_str_mv
repository.mail.fl_str_mv
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