Genetic control of traits related to maturity in cowpea.

Detalhes bibliográficos
Autor(a) principal: SANTOS, S. P. dos
Data de Publicação: 2020
Outros Autores: SILVA, K. J. D. e, ARAGÃO, W. F. L. de, ARAÚJO, M. dos S., ROCHA, M. de M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128602
Resumo: The aim of this study was to investigate genetic control of the traits number of days to flowering (NDF) and number of days to maturity (NDM) in a cowpea cross. Genetic parameters were estimated in segregating and nonsegregating generations of a cross between two contrasting cowpea genotypes (MNC05-828C-1-9-1 × MNC04-792F-146). No evidence for maternal effect was found for either trait. Broad and narrow sense heritability estimates were above 50%, allowing genetic gains from selection of plants in the F2 generation. High significance of additive gene effects and low contribution of dominance and epistatic effects were detected for both traits. The estimated number of genes controlling the traits was around 4 for NDF and 5 for NDM. The results suggest that early-maturing cowpea self-fertilized cultivars can be developed through standard breeding approaches, meeting the demands of modern agricultural systems for more crop seasons per year and mechanized harvesting.
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spelling Genetic control of traits related to maturity in cowpea.Parâmetro GenéticoFloraçãoMaturaçãoPlant breedingInheritance (genetics)FloweringMaturity stageThe aim of this study was to investigate genetic control of the traits number of days to flowering (NDF) and number of days to maturity (NDM) in a cowpea cross. Genetic parameters were estimated in segregating and nonsegregating generations of a cross between two contrasting cowpea genotypes (MNC05-828C-1-9-1 × MNC04-792F-146). No evidence for maternal effect was found for either trait. Broad and narrow sense heritability estimates were above 50%, allowing genetic gains from selection of plants in the F2 generation. High significance of additive gene effects and low contribution of dominance and epistatic effects were detected for both traits. The estimated number of genes controlling the traits was around 4 for NDF and 5 for NDM. The results suggest that early-maturing cowpea self-fertilized cultivars can be developed through standard breeding approaches, meeting the demands of modern agricultural systems for more crop seasons per year and mechanized harvesting.Samíria Pinheiro dos Santos, Universidade Federal do Piauí, Teresina, PI.; KAESEL JACKSON DAMASCENO E SILVA, CPAMN; Walter Frazão Lelis de Aragão, Universidade Federal do Piaui, Teresina, PI.; Maurício dos Santos Araújo, Universidade Federal do Piaui, Teresina, PI.; MAURISRAEL DE MOURA ROCHA, CPAMN.SANTOS, S. P. dosSILVA, K. J. D. eARAGÃO, W. F. L. deARAÚJO, M. dos S.ROCHA, M. de M.2020-12-23T09:03:11Z2020-12-23T09:03:11Z2020-12-222020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleCrop Breeding and Applied Biotechnology, v. 20, n. 4, e32722049, 2020.1518-7853http://www.alice.cnptia.embrapa.br/alice/handle/doc/112860210.1590/1984-70332020v20n4a62enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2020-12-23T09:03:18Zoai:www.alice.cnptia.embrapa.br:doc/1128602Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542020-12-23T09:03:18falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542020-12-23T09:03:18Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic control of traits related to maturity in cowpea.
title Genetic control of traits related to maturity in cowpea.
spellingShingle Genetic control of traits related to maturity in cowpea.
SANTOS, S. P. dos
Parâmetro Genético
Floração
Maturação
Plant breeding
Inheritance (genetics)
Flowering
Maturity stage
title_short Genetic control of traits related to maturity in cowpea.
title_full Genetic control of traits related to maturity in cowpea.
title_fullStr Genetic control of traits related to maturity in cowpea.
title_full_unstemmed Genetic control of traits related to maturity in cowpea.
title_sort Genetic control of traits related to maturity in cowpea.
author SANTOS, S. P. dos
author_facet SANTOS, S. P. dos
SILVA, K. J. D. e
ARAGÃO, W. F. L. de
ARAÚJO, M. dos S.
ROCHA, M. de M.
author_role author
author2 SILVA, K. J. D. e
ARAGÃO, W. F. L. de
ARAÚJO, M. dos S.
ROCHA, M. de M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Samíria Pinheiro dos Santos, Universidade Federal do Piauí, Teresina, PI.; KAESEL JACKSON DAMASCENO E SILVA, CPAMN; Walter Frazão Lelis de Aragão, Universidade Federal do Piaui, Teresina, PI.; Maurício dos Santos Araújo, Universidade Federal do Piaui, Teresina, PI.; MAURISRAEL DE MOURA ROCHA, CPAMN.
dc.contributor.author.fl_str_mv SANTOS, S. P. dos
SILVA, K. J. D. e
ARAGÃO, W. F. L. de
ARAÚJO, M. dos S.
ROCHA, M. de M.
dc.subject.por.fl_str_mv Parâmetro Genético
Floração
Maturação
Plant breeding
Inheritance (genetics)
Flowering
Maturity stage
topic Parâmetro Genético
Floração
Maturação
Plant breeding
Inheritance (genetics)
Flowering
Maturity stage
description The aim of this study was to investigate genetic control of the traits number of days to flowering (NDF) and number of days to maturity (NDM) in a cowpea cross. Genetic parameters were estimated in segregating and nonsegregating generations of a cross between two contrasting cowpea genotypes (MNC05-828C-1-9-1 × MNC04-792F-146). No evidence for maternal effect was found for either trait. Broad and narrow sense heritability estimates were above 50%, allowing genetic gains from selection of plants in the F2 generation. High significance of additive gene effects and low contribution of dominance and epistatic effects were detected for both traits. The estimated number of genes controlling the traits was around 4 for NDF and 5 for NDM. The results suggest that early-maturing cowpea self-fertilized cultivars can be developed through standard breeding approaches, meeting the demands of modern agricultural systems for more crop seasons per year and mechanized harvesting.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-23T09:03:11Z
2020-12-23T09:03:11Z
2020-12-22
2020
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Crop Breeding and Applied Biotechnology, v. 20, n. 4, e32722049, 2020.
1518-7853
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128602
10.1590/1984-70332020v20n4a62
identifier_str_mv Crop Breeding and Applied Biotechnology, v. 20, n. 4, e32722049, 2020.
1518-7853
10.1590/1984-70332020v20n4a62
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128602
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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