GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/4831 |
Resumo: | The great diversity of plants in the Brazilian Semiarid environment represents a vital natural resource for the human populations of these areas. Many of these plants have been subject to extractivism and among these, the species of the genus Stylosanthes, which have occurrence in this region, show great potential, however, studies on this topic are limited, and little is known about the existing variability among these plants. Therefore, further study is necessary, to facilitate the development of cultivars. This might reduce the scarcity of fodder supply in this region, but to commence a plant breeding programme, it is essential to identify genetic variability. Therefore, this study evaluated 25 accessions of Stylosanthes spp., to identify the most suitable candidates to be parents in a plant breeding programme for the semiarid region of the state of Bahia. Two experiments were carried out in different sites in an experimental design of randomized blocks with four replicates, with a spacing of 3.0 × 8.0 m. A large amount of genetic diversity was observed among accessions and the genotypes BGF 08-007, BGF 08-016, BGF 08-015 and BGF 08-021 were the most divergent in the overall evaluation. For the structuring of segregating populations, it is recommended to combine the genotypes BGF 08-016, BGF 08-015, BGF 08-007 and BGF 08-006, and for the interspecific crosses, a hybrid from the accession BGF-024 with the accessions BGF 08-016 or BGF 08-015. This might generate superior individuals for mass descriptors, which are the most important for animal forage breeding. |
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GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORSDIVERSIDADE GENÉTICA EM ACESSOS DE Stylosanthes spp. UTILIZANDO DESCRITORES MORFOAGRONÔMICOSSemiárido. Forrageiras nativas. Descritores morfológicos.Semiarid. Native forage. Morphological descriptors.The great diversity of plants in the Brazilian Semiarid environment represents a vital natural resource for the human populations of these areas. Many of these plants have been subject to extractivism and among these, the species of the genus Stylosanthes, which have occurrence in this region, show great potential, however, studies on this topic are limited, and little is known about the existing variability among these plants. Therefore, further study is necessary, to facilitate the development of cultivars. This might reduce the scarcity of fodder supply in this region, but to commence a plant breeding programme, it is essential to identify genetic variability. Therefore, this study evaluated 25 accessions of Stylosanthes spp., to identify the most suitable candidates to be parents in a plant breeding programme for the semiarid region of the state of Bahia. Two experiments were carried out in different sites in an experimental design of randomized blocks with four replicates, with a spacing of 3.0 × 8.0 m. A large amount of genetic diversity was observed among accessions and the genotypes BGF 08-007, BGF 08-016, BGF 08-015 and BGF 08-021 were the most divergent in the overall evaluation. For the structuring of segregating populations, it is recommended to combine the genotypes BGF 08-016, BGF 08-015, BGF 08-007 and BGF 08-006, and for the interspecific crosses, a hybrid from the accession BGF-024 with the accessions BGF 08-016 or BGF 08-015. This might generate superior individuals for mass descriptors, which are the most important for animal forage breeding.A grande diversidade de plantas do Semiárido representa um recurso natural vital para as populações humanas dessa região. Muitas dessas plantas são exploradas de forma extrativista e entre elas, as espécies do gênero Stylosanthes, que são nativas tem grande potencial, porém, os trabalhos realizados têm sido modestos e pouco se conhece a respeito da variabilidade existente nessas plantas. Por isso, esforços devem ser priorizados no sentido de estudá-las, o que certamente poderá ajudar a criar formas para o desenvolvimento de cultivares e, assim, amenizar a escassez de forragem nessa região. Entretanto, para iniciar trabalhos de melhoramento, primeiro deve-se buscar variabilidade genética. Assim, este trabalho avaliou 25 acessos de Stylosanthes spp., a fim de identificar os melhores para serem genitores no programa de melhoramento genético para o Semiárido baiano. Para isso, foram conduzidos dois experimentos em diferentes locais no delineamento blocos casualizados completos com quatro repetições num espaçamento 3,0 × 0,8 m. Foi constatada grande diversidade genética entre os acessos, sendo que os genótipos BGF 08-007, BGF 08-016, BGF 08-015 e BGF 08-021, mostraram-se como os mais divergentes na avaliação geral. Para a formação de populações segregantes, recomenda-se combinar os genótipos BGF 08-016, BGF 08-015, BGF 08-007 e BGF 08-006, e para cruzamentos interespecíficos recomenda-se hibridar o acesso BGF-024 com os acessos BGF 08-016 e BGF 08-015, possibilitando o surgimento de indivíduos superiores para os descritores de massa, os mais importantes para o melhoramento visando alimentação animal.Universidade Federal Rural do Semi-Árido2016-03-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/483110.1590/1983-21252016v29n112rcREVISTA CAATINGA; Vol. 29 No. 1 (2016); 101-112Revista Caatinga; v. 29 n. 1 (2016); 101-1121983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/4831/pdf_341Copyright (c) 2023 Revista Caatingainfo:eu-repo/semantics/openAccessOliveira, Ronaldo Simão deQueiróz, Manoel Abílio deRomão, Roberto LisboaSilva, Grécia Cavalcanti daBrasileiro, Bruno Portela2023-07-19T13:32:00Zoai:ojs.periodicos.ufersa.edu.br:article/4831Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:19.295815Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS DIVERSIDADE GENÉTICA EM ACESSOS DE Stylosanthes spp. UTILIZANDO DESCRITORES MORFOAGRONÔMICOS |
title |
GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS |
spellingShingle |
GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS Oliveira, Ronaldo Simão de Semiárido. Forrageiras nativas. Descritores morfológicos. Semiarid. Native forage. Morphological descriptors. |
title_short |
GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS |
title_full |
GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS |
title_fullStr |
GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS |
title_full_unstemmed |
GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS |
title_sort |
GENETIC DIVERSITY IN ACCESSIONS OF Stylosanthes spp. USING MORPHOAGRONOMIC DESCRIPTORS |
author |
Oliveira, Ronaldo Simão de |
author_facet |
Oliveira, Ronaldo Simão de Queiróz, Manoel Abílio de Romão, Roberto Lisboa Silva, Grécia Cavalcanti da Brasileiro, Bruno Portela |
author_role |
author |
author2 |
Queiróz, Manoel Abílio de Romão, Roberto Lisboa Silva, Grécia Cavalcanti da Brasileiro, Bruno Portela |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Oliveira, Ronaldo Simão de Queiróz, Manoel Abílio de Romão, Roberto Lisboa Silva, Grécia Cavalcanti da Brasileiro, Bruno Portela |
dc.subject.por.fl_str_mv |
Semiárido. Forrageiras nativas. Descritores morfológicos. Semiarid. Native forage. Morphological descriptors. |
topic |
Semiárido. Forrageiras nativas. Descritores morfológicos. Semiarid. Native forage. Morphological descriptors. |
description |
The great diversity of plants in the Brazilian Semiarid environment represents a vital natural resource for the human populations of these areas. Many of these plants have been subject to extractivism and among these, the species of the genus Stylosanthes, which have occurrence in this region, show great potential, however, studies on this topic are limited, and little is known about the existing variability among these plants. Therefore, further study is necessary, to facilitate the development of cultivars. This might reduce the scarcity of fodder supply in this region, but to commence a plant breeding programme, it is essential to identify genetic variability. Therefore, this study evaluated 25 accessions of Stylosanthes spp., to identify the most suitable candidates to be parents in a plant breeding programme for the semiarid region of the state of Bahia. Two experiments were carried out in different sites in an experimental design of randomized blocks with four replicates, with a spacing of 3.0 × 8.0 m. A large amount of genetic diversity was observed among accessions and the genotypes BGF 08-007, BGF 08-016, BGF 08-015 and BGF 08-021 were the most divergent in the overall evaluation. For the structuring of segregating populations, it is recommended to combine the genotypes BGF 08-016, BGF 08-015, BGF 08-007 and BGF 08-006, and for the interspecific crosses, a hybrid from the accession BGF-024 with the accessions BGF 08-016 or BGF 08-015. This might generate superior individuals for mass descriptors, which are the most important for animal forage breeding. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03-11 |
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://periodicos.ufersa.edu.br/caatinga/article/view/4831 10.1590/1983-21252016v29n112rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/4831 |
identifier_str_mv |
10.1590/1983-21252016v29n112rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/4831/pdf_341 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 29 No. 1 (2016); 101-112 Revista Caatinga; v. 29 n. 1 (2016); 101-112 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674025554542592 |