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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
03/02/2016 |
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Data da última atualização: |
08/02/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, L. M. de; LE GUEN, V.; CERQUEIRA-SILVA, C. B. M.; SILVA, C. C.; MANTELLO, C. C.; CONSON, A. R. O.; VIANNA, J. P. G.; ZUCCHI, M. I.; SCALOPPI JUNIOR, E. J.; FIALHO, J. de F.; MORAES, M. L. T. de; GONÇALVES, P. de S.; SOUZA, A. P. de. |
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Afiliação: |
JOSEFINO DE FREITAS FIALHO, CPAC. |
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Título: |
Genetic diversity strategy for the management and use of rubber genetic resources: more than 1,000 wild and cultivated accessions in a 100-Genotype core collection. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Plos One, San Francisco, v. 10, n. 7, e013607, 2015. |
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DOI: |
10.1371/journal.pone.0134607. |
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Idioma: |
Português |
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Conteúdo: |
Abstract - The rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.] is the only plant species worldwide that is cultivated for the commercial production of natural rubber. This study describes the genetic diversity of the Hevea spp. complex that is available in the main ex situ collections of South America, including Amazonian populations that have never been previously described. Genetic data were analyzed to determine the genetic structure of the wild populations, quantify the allelic diversity and suggest the composition of a core collection to capture the maximum genetic diversity within a minimal sample size. A total of 1,117 accessions were genotyped with 13 microsatellite markers. We identified a total of 408 alleles, 319 of which were shared between groups and 89 that were private in different groups of accessions. In a population structure and principal component analysis, the level of clustering reflected a primary division into the following two subgroups: cluster 1, which consisted of varieties from the advanced breeding germplasm that originated from the Wickham and Mato Grosso accessions; and cluster 2, which consisted of the wild germplasm from the Acre, Amazonas, Pará and Rondônia populations and Hevea spp. The analyses revealed a high frequency of gene flow between the groups, with the genetic differentiation coefficient (GST) estimated to be 0.018. Additionally, no distinct separation among the H. brasiliensis accessions and the other species from Amazonas was observed. A core collection of 99 accessions was identified that captured the maximum genetic diversity. Rubber tree breeders can effectively utilize this core collection for cultivar improvement. Furthermore, such a core collection could provide resources for forming an association panel to evaluate traits with agronomic and commercial importance. Our study generated a molecular database that should facilitate the management of the Hevea germplasm and its use for subsequent genetic and genomic breeding. MenosAbstract - The rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.] is the only plant species worldwide that is cultivated for the commercial production of natural rubber. This study describes the genetic diversity of the Hevea spp. complex that is available in the main ex situ collections of South America, including Amazonian populations that have never been previously described. Genetic data were analyzed to determine the genetic structure of the wild populations, quantify the allelic diversity and suggest the composition of a core collection to capture the maximum genetic diversity within a minimal sample size. A total of 1,117 accessions were genotyped with 13 microsatellite markers. We identified a total of 408 alleles, 319 of which were shared between groups and 89 that were private in different groups of accessions. In a population structure and principal component analysis, the level of clustering reflected a primary division into the following two subgroups: cluster 1, which consisted of varieties from the advanced breeding germplasm that originated from the Wickham and Mato Grosso accessions; and cluster 2, which consisted of the wild germplasm from the Acre, Amazonas, Pará and Rondônia populations and Hevea spp. The analyses revealed a high frequency of gene flow between the groups, with the genetic differentiation coefficient (GST) estimated to be 0.018. Additionally, no distinct separation among the H. brasiliensis accessions and the other spec... Mostrar Tudo |
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Palavras-Chave: |
Estrutura genética; Genetic structure; Natural rubber. |
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Thesagro: |
Hevea Brasiliensis. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/138347/1/Josefino-genetic-diversity.pdf
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Marc: |
LEADER 03065naa a2200325 a 4500
001 2035994
005 2017-02-08
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1371/journal.pone.0134607.$2DOI
100 1 $aSOUZA, L. M. de
245 $aGenetic diversity strategy for the management and use of rubber genetic resources$bmore than 1,000 wild and cultivated accessions in a 100-Genotype core collection.
260 $c2015
520 $aAbstract - The rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.] is the only plant species worldwide that is cultivated for the commercial production of natural rubber. This study describes the genetic diversity of the Hevea spp. complex that is available in the main ex situ collections of South America, including Amazonian populations that have never been previously described. Genetic data were analyzed to determine the genetic structure of the wild populations, quantify the allelic diversity and suggest the composition of a core collection to capture the maximum genetic diversity within a minimal sample size. A total of 1,117 accessions were genotyped with 13 microsatellite markers. We identified a total of 408 alleles, 319 of which were shared between groups and 89 that were private in different groups of accessions. In a population structure and principal component analysis, the level of clustering reflected a primary division into the following two subgroups: cluster 1, which consisted of varieties from the advanced breeding germplasm that originated from the Wickham and Mato Grosso accessions; and cluster 2, which consisted of the wild germplasm from the Acre, Amazonas, Pará and Rondônia populations and Hevea spp. The analyses revealed a high frequency of gene flow between the groups, with the genetic differentiation coefficient (GST) estimated to be 0.018. Additionally, no distinct separation among the H. brasiliensis accessions and the other species from Amazonas was observed. A core collection of 99 accessions was identified that captured the maximum genetic diversity. Rubber tree breeders can effectively utilize this core collection for cultivar improvement. Furthermore, such a core collection could provide resources for forming an association panel to evaluate traits with agronomic and commercial importance. Our study generated a molecular database that should facilitate the management of the Hevea germplasm and its use for subsequent genetic and genomic breeding.
650 $aHevea Brasiliensis
653 $aEstrutura genética
653 $aGenetic structure
653 $aNatural rubber
700 1 $aLE GUEN, V.
700 1 $aCERQUEIRA-SILVA, C. B. M.
700 1 $aSILVA, C. C.
700 1 $aMANTELLO, C. C.
700 1 $aCONSON, A. R. O.
700 1 $aVIANNA, J. P. G.
700 1 $aZUCCHI, M. I.
700 1 $aSCALOPPI JUNIOR, E. J.
700 1 $aFIALHO, J. de F.
700 1 $aMORAES, M. L. T. de
700 1 $aGONÇALVES, P. de S.
700 1 $aSOUZA, A. P. de
773 $tPlos One, San Francisco$gv. 10, n. 7, e013607, 2015.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
19/03/2022 |
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Data da última atualização: |
19/03/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
DUARTE, J. R. de M.; FRASCA, L. L. de M.; SILVA, M. A.; NASCENTE, A. S. |
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Afiliação: |
JÉSSICA RODRIGUES DE MELLO DUARTE, doutoranda UFG; LAYLLA LUANNA DE MELLO FRASCA; MARIANA AGUIAR SILVA; ADRIANO STEPHAN NASCENTE, CNPAF. |
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Título: |
Influência de coberturas vegetais na produtividade do feijão-comum. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 13., 2021, Goiânia. Conectividade tecnológica, intensificação sustentável: resumos. Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2021. |
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Páginas: |
p. 194. |
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ISBN: |
978-65-87380-80-3 |
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Idioma: |
Português |
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Notas: |
Evento online. |
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Conteúdo: |
A adoção de coberturas vegetais como componente do sistema agrícola tem se mostrado como excelente alternativa para proporcionar melhoria contínua do sistema produtivo. Entretanto, observa-se no Cerrado brasileiro a dificuldade em definir espécies de plantas de cobertura que sejam efetivas, principalmente devido à baixa produção de fitomassa na entressafra e a decomposição acelerada dos resíduos. Sendo assim, este trabalho teve por objetivo determinar o efeito das coberturas vegetais no componente de produção vagens por planta e na produtividade da cultura do feijão-comum. |
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Thesagro: |
Cobertura Vegetal; Feijão; Gramínea; Phaseolus Vulgaris; Planta de Cobertura. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232716/1/Conafe-2021-p194.pdf
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Marc: |
LEADER 01450nam a2200241 a 4500
001 2141055
005 2022-03-19
008 2021 bl uuuu u00u1 u #d
020 $a978-65-87380-80-3
100 1 $aDUARTE, J. R. de M.
245 $aInfluência de coberturas vegetais na produtividade do feijão-comum.$h[electronic resource]
260 $aIn: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 13., 2021, Goiânia. Conectividade tecnológica, intensificação sustentável: resumos. Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão$c2021
300 $ap. 194.
500 $aEvento online.
520 $aA adoção de coberturas vegetais como componente do sistema agrícola tem se mostrado como excelente alternativa para proporcionar melhoria contínua do sistema produtivo. Entretanto, observa-se no Cerrado brasileiro a dificuldade em definir espécies de plantas de cobertura que sejam efetivas, principalmente devido à baixa produção de fitomassa na entressafra e a decomposição acelerada dos resíduos. Sendo assim, este trabalho teve por objetivo determinar o efeito das coberturas vegetais no componente de produção vagens por planta e na produtividade da cultura do feijão-comum.
650 $aCobertura Vegetal
650 $aFeijão
650 $aGramínea
650 $aPhaseolus Vulgaris
650 $aPlanta de Cobertura
700 1 $aFRASCA, L. L. de M.
700 1 $aSILVA, M. A.
700 1 $aNASCENTE, A. S.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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