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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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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
19/11/1998 |
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Data da última atualização: |
07/08/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SIGNORETTI, R. D.; SILVA, J. F. C. da; VALADARES FILHO, S. de C.; ARAUJO, G. G. L. de; PEREIRA, J. C.; CECON, P. R.; QUEIROZ, A. C. de. |
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Afiliação: |
GHERMAN GARCIA LEAL DE ARAUJO, CPATSA. |
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Título: |
Crescimento, conversão alimentar e rendimento de carcaça de bezerros holandeses em confinamento. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu, SP. Anais... Botucatu: SBZ, 1998. |
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Páginas: |
v. 1, p. 428-430. |
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Idioma: |
Português |
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Conteúdo: |
Foram utilizados 36 bezerros Holandeses, nao-castrados, com idade media de 60 dias e peso vivo inicial de 78 kg, em delineamento inteiramente casualizado, para avaliar o efeito dos diferentes niveis de volumoso das dietas sobre o desempenho animal. Houve efeito linear crescence para conversao alimentar expressa em peso vivo (PV) e peso corporal vazio (PCV), enquanto os ganhos de peso medio expressos em PV e PCVZ decresceram linearmente e o consumo de MS nao foi influenciado com aumento de volumoso nas dietas. O peso da carcaca quente e o seu rendimento para os animais do grupo de 300 Kg nao foram afetados, enquanto o rendimento de carcaca quente do grupo de 190 kg decresceu linearmente com aumento de volumoso nas dietas. Conclui-se que o desempenho dos bezerros de ambos os grupos de abate foi maior com utilizacao de menores niveis de volumoso. |
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Palavras-Chave: |
Bezerro Holandes; Conservacao alimentar; Desempenho; Forage level; Holstein calf. |
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Thesagro: |
Confinamento; Feno. |
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Thesaurus NAL: |
feed intake; feedlots. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/196516/1/Reuniao-de-zootecnia-pag-428-430.pdf
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Marc: |
LEADER 01771nam a2200301 a 4500
001 1133200
005 2019-08-07
008 1998 bl uuuu u00u1 u #d
100 1 $aSIGNORETTI, R. D.
245 $aCrescimento, conversão alimentar e rendimento de carcaça de bezerros holandeses em confinamento.
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu, SP. Anais... Botucatu: SBZ$c1998
300 $av. 1, p. 428-430.
520 $aForam utilizados 36 bezerros Holandeses, nao-castrados, com idade media de 60 dias e peso vivo inicial de 78 kg, em delineamento inteiramente casualizado, para avaliar o efeito dos diferentes niveis de volumoso das dietas sobre o desempenho animal. Houve efeito linear crescence para conversao alimentar expressa em peso vivo (PV) e peso corporal vazio (PCV), enquanto os ganhos de peso medio expressos em PV e PCVZ decresceram linearmente e o consumo de MS nao foi influenciado com aumento de volumoso nas dietas. O peso da carcaca quente e o seu rendimento para os animais do grupo de 300 Kg nao foram afetados, enquanto o rendimento de carcaca quente do grupo de 190 kg decresceu linearmente com aumento de volumoso nas dietas. Conclui-se que o desempenho dos bezerros de ambos os grupos de abate foi maior com utilizacao de menores niveis de volumoso.
650 $afeed intake
650 $afeedlots
650 $aConfinamento
650 $aFeno
653 $aBezerro Holandes
653 $aConservacao alimentar
653 $aDesempenho
653 $aForage level
653 $aHolstein calf
700 1 $aSILVA, J. F. C. da
700 1 $aVALADARES FILHO, S. de C.
700 1 $aARAUJO, G. G. L. de
700 1 $aPEREIRA, J. C.
700 1 $aCECON, P. R.
700 1 $aQUEIROZ, A. C. de
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