Inbreeding depression in crambe

Detalhes bibliográficos
Autor(a) principal: Lara-Fioreze, Ana Carolina da Costa
Data de Publicação: 2016
Outros Autores: Pivetta, Laerte Gustavo, Zanotto, Maurício Dutra
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/41811
Resumo: Inbreeding depression in plants, caused by selfing or crossing among plants with a high degree of relatedness, is a genetic phenomenon that affects quantitative traits. This study aimed at verifying the occurrence of inbreeding depression in crambe progenies originated from selfing, in comparison with open pollination progenies. A randomized blocks design, with three replications, in a 32 x 2 factorial arrangement, with 32 crambe progenies and two reproduction systems (artificial selfing and open pollination), was used. Grain yield, 1,000-grain weight, plant height and final stand were evaluated. A significant interaction was observed between progenies and reproduction systems in all traits evaluated. A reduction in grain yield, 1,000-grain weight and plant height occurred in the majority of the selfing progenies, when compared to open pollination progenies. Inbreeding depression was observed in all traits, especially for grain yield. The heritability coefficients of selfed progenies were higher than the open pollinated ones, except for 1,000-grain weight.
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spelling Inbreeding depression in crambeDepressão por endogamia em crambeCrambe abyssinica Hochstselfingopen pollinationheritability.Crambe abyssinica Hochstautofecundaçãopolinização abertaherdabilidade.Inbreeding depression in plants, caused by selfing or crossing among plants with a high degree of relatedness, is a genetic phenomenon that affects quantitative traits. This study aimed at verifying the occurrence of inbreeding depression in crambe progenies originated from selfing, in comparison with open pollination progenies. A randomized blocks design, with three replications, in a 32 x 2 factorial arrangement, with 32 crambe progenies and two reproduction systems (artificial selfing and open pollination), was used. Grain yield, 1,000-grain weight, plant height and final stand were evaluated. A significant interaction was observed between progenies and reproduction systems in all traits evaluated. A reduction in grain yield, 1,000-grain weight and plant height occurred in the majority of the selfing progenies, when compared to open pollination progenies. Inbreeding depression was observed in all traits, especially for grain yield. The heritability coefficients of selfed progenies were higher than the open pollinated ones, except for 1,000-grain weight.A depressão por endogamia em plantas, causada por autofecundação ou cruzamento entre plantas com alto grau de parentesco, é um fenômeno genético que afeta os caracteres quantitativos. Objetivou-se verificar a ocorrência de depressão por endogamia em progênies de crambe originadas de autofecundação, em comparação com progênies de polinização livre. O delineamento experimental foi em blocos casualizados, com três repetições, em esquema fatorial 32 x 2, em que foram avaliadas 32 progênies de crambe sob dois sistemas de reprodução (autofecundação artificial e polinização livre). Foram avaliados a produtividade de grãos, massa de 1.000 grãos, altura de planta e estande final. Observou-se interação significativa entre progênies e sistemas de reprodução para todas as características avaliadas. Para a maioria das progênies, houve redução na produtividade de grãos, massa de 1.000 grãos e altura de plantas oriundas de autofecundação, em comparação com as progênies de polinização livre. Houve depressão por endogamia para todas as características avaliadas, especialmente para a produtividade de grãos. Os coeficientes de herdabilidade para as progênies oriundas de autofecundação foram maiores do que para as de polinização livre, exceto para massa de 1.000 grãos.Escola de Agronomia - Universidade Federal de Goiás2016-11-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/41811Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 46, n. 4, Oct./Dec. 2016; 401-406Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 46, n. 4, out./dez. 2016; 401-406Pesquisa Agropecuária Tropical; v. 46, n. 4, out./dez. 2016; 401-4061983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/41811/21986Copyright (c) 2016 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessLara-Fioreze, Ana Carolina da CostaPivetta, Laerte GustavoZanotto, Maurício Dutra2020-07-13T18:17:56Zoai:ojs.revistas.ufg.br:article/41811Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:13.958492Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Inbreeding depression in crambe
Depressão por endogamia em crambe
title Inbreeding depression in crambe
spellingShingle Inbreeding depression in crambe
Lara-Fioreze, Ana Carolina da Costa
Crambe abyssinica Hochst
selfing
open pollination
heritability.
Crambe abyssinica Hochst
autofecundação
polinização aberta
herdabilidade.
title_short Inbreeding depression in crambe
title_full Inbreeding depression in crambe
title_fullStr Inbreeding depression in crambe
title_full_unstemmed Inbreeding depression in crambe
title_sort Inbreeding depression in crambe
author Lara-Fioreze, Ana Carolina da Costa
author_facet Lara-Fioreze, Ana Carolina da Costa
Pivetta, Laerte Gustavo
Zanotto, Maurício Dutra
author_role author
author2 Pivetta, Laerte Gustavo
Zanotto, Maurício Dutra
author2_role author
author
dc.contributor.author.fl_str_mv Lara-Fioreze, Ana Carolina da Costa
Pivetta, Laerte Gustavo
Zanotto, Maurício Dutra
dc.subject.por.fl_str_mv Crambe abyssinica Hochst
selfing
open pollination
heritability.
Crambe abyssinica Hochst
autofecundação
polinização aberta
herdabilidade.
topic Crambe abyssinica Hochst
selfing
open pollination
heritability.
Crambe abyssinica Hochst
autofecundação
polinização aberta
herdabilidade.
description Inbreeding depression in plants, caused by selfing or crossing among plants with a high degree of relatedness, is a genetic phenomenon that affects quantitative traits. This study aimed at verifying the occurrence of inbreeding depression in crambe progenies originated from selfing, in comparison with open pollination progenies. A randomized blocks design, with three replications, in a 32 x 2 factorial arrangement, with 32 crambe progenies and two reproduction systems (artificial selfing and open pollination), was used. Grain yield, 1,000-grain weight, plant height and final stand were evaluated. A significant interaction was observed between progenies and reproduction systems in all traits evaluated. A reduction in grain yield, 1,000-grain weight and plant height occurred in the majority of the selfing progenies, when compared to open pollination progenies. Inbreeding depression was observed in all traits, especially for grain yield. The heritability coefficients of selfed progenies were higher than the open pollinated ones, except for 1,000-grain weight.
publishDate 2016
dc.date.none.fl_str_mv 2016-11-30
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/41811
url https://revistas.ufg.br/pat/article/view/41811
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/41811/21986
dc.rights.driver.fl_str_mv Copyright (c) 2016 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 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. 46, n. 4, Oct./Dec. 2016; 401-406
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 46, n. 4, out./dez. 2016; 401-406
Pesquisa Agropecuária Tropical; v. 46, n. 4, out./dez. 2016; 401-406
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
_version_ 1799874819411410944

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