Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding

Detalhes bibliográficos
Autor(a) principal: Boaventura-Novaes, Carolina Ribeiro Diniz
Data de Publicação: 2021
Outros Autores: Novaes, Evandro, Mota, Elias Emanuel Silva, Telles, Mariana Pires de Campos, Chaves, Lázaro José
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/68756
Resumo: Eugenia dysenterica DC. is a native tree from the Brazilian Savanna known as a genetic resource for its fruits and culinary potential. The knowledge on the genetic variability of agronomic traits is important to support studies on its conservation and domestication. This study aimed to estimate the quantitative genetic parameters of initial growth traits among and within E. dysenterica subpopulations, in provenance and progeny testing, and establish a germplasm collection representative of the species distribution. For that, 25 natural subpopulations were sampled and, within each subpopulation, six mother trees. The progenies were sown in a nursery, in a randomized complete blocks design consisting of 150 progenies, four replications and five plants per plot. The analysis of variance of the initial development traits revealed a greater variability among the progenies within the subpopulation than that observed among the subpopulations. The aboveground biomass represented only 15 % of the total biomass, a recurrent characteristic in Brazilian Savanna species. The estimated heritability and coefficients of genetic variation presented selection potential for the initial development traits, which are important for commercial seedlings production. An in vivo ex situ germplasm collection was established for conservation and breeding purposes, using a sample of four plants from each progeny. KEYWORDS: Cagaita, progeny test, Brazilian Savanna, genetic resources.
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spelling Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breedingVariabilidade genética do crescimento inicial de Eugenia dysenterica DC.: implicações para conservação e melhoramento genéticoEugenia dysenterica DC. is a native tree from the Brazilian Savanna known as a genetic resource for its fruits and culinary potential. The knowledge on the genetic variability of agronomic traits is important to support studies on its conservation and domestication. This study aimed to estimate the quantitative genetic parameters of initial growth traits among and within E. dysenterica subpopulations, in provenance and progeny testing, and establish a germplasm collection representative of the species distribution. For that, 25 natural subpopulations were sampled and, within each subpopulation, six mother trees. The progenies were sown in a nursery, in a randomized complete blocks design consisting of 150 progenies, four replications and five plants per plot. The analysis of variance of the initial development traits revealed a greater variability among the progenies within the subpopulation than that observed among the subpopulations. The aboveground biomass represented only 15 % of the total biomass, a recurrent characteristic in Brazilian Savanna species. The estimated heritability and coefficients of genetic variation presented selection potential for the initial development traits, which are important for commercial seedlings production. An in vivo ex situ germplasm collection was established for conservation and breeding purposes, using a sample of four plants from each progeny. KEYWORDS: Cagaita, progeny test, Brazilian Savanna, genetic resources.Eugenia dysenterica DC. é uma árvore nativa do Cerrado conhecida como recurso genético por seus frutos e potencial culinário. O conhecimento da variabilidade genética de características agronômicas é importante para subsidiar pesquisas sobre a sua conservação e domesticação. Objetivou-se estimar os parâmetros genéticos quantitativos das características iniciais de crescimento entre e dentro de subpopulações de E. dysenterica, em teste de procedências e progênies, e estabelecer uma coleção de germoplasma representativa da distribuição da espécie. Para isso, 25 subpopulações naturais foram amostradas e, dentro de cada subpopulação, 6 árvores matrizes. As progênies foram semeadas em viveiro, em delineamento de blocos ao acaso constituído de 150 progênies, quatro repetições e cinco plantas por parcela. A análise de variância de caracteres do desenvolvimento inicial revelou maior variabilidade entre progênies dentro da subpopulação do que a observada entre as subpopulações. A biomassa acima do solo representou apenas 15 % da biomassa total, característica recorrente em espécies do Cerrado. A herdabilidade estimada e os coeficientes de variação genética apresentaram potencial de seleção para os caracteres de desenvolvimento inicial, importantes para a produção comercial de mudas. Uma coleção de germoplasma in vivo ex situ foi estabelecida para fins de conservação e melhoramento, utilizando-se uma amostra de quatro plantas de cada progênie. PALAVRAS-CHAVE: Cagaita, teste de progênies, Cerrado, recursos genéticos.Escola de Agronomia - Universidade Federal de Goiás2021-09-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufg.br/pat/article/view/68756Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 51 (2021); e68756Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e68756Pesquisa Agropecuária Tropical; v. 51 (2021); e687561983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/68756/37185Copyright (c) 2021 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessBoaventura-Novaes, Carolina Ribeiro Diniz Novaes, EvandroMota, Elias Emanuel SilvaTelles, Mariana Pires de CamposChaves, Lázaro José 2021-09-21T13:10:23Zoai:ojs.revistas.ufg.br:article/68756Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:32.904771Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding
Variabilidade genética do crescimento inicial de Eugenia dysenterica DC.: implicações para conservação e melhoramento genético
title Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding
spellingShingle Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding
Boaventura-Novaes, Carolina Ribeiro Diniz
title_short Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding
title_full Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding
title_fullStr Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding
title_full_unstemmed Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding
title_sort Genetic variability of the initial growth of Eugenia dysenterica DC.: implications for conservation and breeding
author Boaventura-Novaes, Carolina Ribeiro Diniz
author_facet Boaventura-Novaes, Carolina Ribeiro Diniz
Novaes, Evandro
Mota, Elias Emanuel Silva
Telles, Mariana Pires de Campos
Chaves, Lázaro José
author_role author
author2 Novaes, Evandro
Mota, Elias Emanuel Silva
Telles, Mariana Pires de Campos
Chaves, Lázaro José
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Boaventura-Novaes, Carolina Ribeiro Diniz
Novaes, Evandro
Mota, Elias Emanuel Silva
Telles, Mariana Pires de Campos
Chaves, Lázaro José
description Eugenia dysenterica DC. is a native tree from the Brazilian Savanna known as a genetic resource for its fruits and culinary potential. The knowledge on the genetic variability of agronomic traits is important to support studies on its conservation and domestication. This study aimed to estimate the quantitative genetic parameters of initial growth traits among and within E. dysenterica subpopulations, in provenance and progeny testing, and establish a germplasm collection representative of the species distribution. For that, 25 natural subpopulations were sampled and, within each subpopulation, six mother trees. The progenies were sown in a nursery, in a randomized complete blocks design consisting of 150 progenies, four replications and five plants per plot. The analysis of variance of the initial development traits revealed a greater variability among the progenies within the subpopulation than that observed among the subpopulations. The aboveground biomass represented only 15 % of the total biomass, a recurrent characteristic in Brazilian Savanna species. The estimated heritability and coefficients of genetic variation presented selection potential for the initial development traits, which are important for commercial seedlings production. An in vivo ex situ germplasm collection was established for conservation and breeding purposes, using a sample of four plants from each progeny. KEYWORDS: Cagaita, progeny test, Brazilian Savanna, genetic resources.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-21
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/68756
url https://revistas.ufg.br/pat/article/view/68756
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/68756/37185
dc.rights.driver.fl_str_mv Copyright (c) 2021 Pesquisa Agropecuária Tropical
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2021 Pesquisa Agropecuária Tropical
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]; Vol. 51 (2021); e68756
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e68756
Pesquisa Agropecuária Tropical; v. 51 (2021); e68756
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
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instname_str Universidade Federal de Goiás (UFG)
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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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