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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
27/03/2012 |
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Data da última atualização: |
30/07/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUSA, A. C. B. de; JANK, L.; CAMPOS, T. de; SFORÇA, D. A.; ZUCCHI, M. I.; SOUZA, A. P. de. |
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Afiliação: |
Adna Cristina Barbosa de Sousa, UNICAMP; LIANA JANK, CNPGC; Tatiana de Campos, UNICAMP; Danilo Augusto Sforça, UNICAMP; Maria Imaculada Zucchi, UNICAMP; Anete Pereira de Souza, UNICAMP. |
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Título: |
Molecular diversity and genetic structure of guineagrass (Panicum maximum Jacq.), a tropical pasture grass. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Tropical Plant Biology, v.4, n.3-4, p. 185-202, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Guineagrass (Panicum maximum Jacq.) is a forage grass found in tropical and subtropical regions. It is an apomictic and tetraploid species from Africa. The objective of this study was to evaluate the genetic diversity of guineagrass accessions sampled from its regions of origin, which is in Tanzania and Kenya. In this study, a total of 396 accessions were analyzed, and a collection of reproducible and informative microsatellites was developed. Thirty microsatellites were employed to characterize these accessions. A total of 576 clones were sequenced from microsatellite-enriched libraries. Flanking primers were designed for 116 microsatellite loci and screened using a sample of 25 guineagrass accessions. The thirty selected polymorphic microsatellites employed in this study produced a total of 192 bands when evaluated in the 396 P. maximum accessions, with an average of 6.4 bands per microsatellite. Four genetic clusters were identified in the collection using STRUCTURE analysis, and these results were confirmed using AMOVA. The largest genetic variation was found within clusters (65.38%). This study revealed that the collection of accessions from the P. maximum region of origin was a rich source of genetic variability. The geographical distances and genetic similarities among accessions did not indicate a significant association between genetic and geographical variation, supporting the natural interspecific crossing between P. maximum, P. infestum and P. trichocladum as the origin of the high genetic variability and the existence of an agamic complex formed by these three species. MenosGuineagrass (Panicum maximum Jacq.) is a forage grass found in tropical and subtropical regions. It is an apomictic and tetraploid species from Africa. The objective of this study was to evaluate the genetic diversity of guineagrass accessions sampled from its regions of origin, which is in Tanzania and Kenya. In this study, a total of 396 accessions were analyzed, and a collection of reproducible and informative microsatellites was developed. Thirty microsatellites were employed to characterize these accessions. A total of 576 clones were sequenced from microsatellite-enriched libraries. Flanking primers were designed for 116 microsatellite loci and screened using a sample of 25 guineagrass accessions. The thirty selected polymorphic microsatellites employed in this study produced a total of 192 bands when evaluated in the 396 P. maximum accessions, with an average of 6.4 bands per microsatellite. Four genetic clusters were identified in the collection using STRUCTURE analysis, and these results were confirmed using AMOVA. The largest genetic variation was found within clusters (65.38%). This study revealed that the collection of accessions from the P. maximum region of origin was a rich source of genetic variability. The geographical distances and genetic similarities among accessions did not indicate a significant association between genetic and geographical variation, supporting the natural interspecific crossing between P. maximum, P. infestum and P. trichocladum as the... Mostrar Tudo |
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Palavras-Chave: |
Diversidade genética; Microssatélite; Panicum maximum Jacq. |
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Thesagro: |
Marcador Molecular; Melhoramento Genético Vegetal; Pastagem. |
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Thesaurus Nal: |
Megathyrsus maximus. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02418naa a2200265 a 4500
001 1920489
005 2012-07-30
008 2011 bl uuuu u00u1 u #d
100 1 $aSOUSA, A. C. B. de
245 $aMolecular diversity and genetic structure of guineagrass (Panicum maximum Jacq.), a tropical pasture grass.$h[electronic resource]
260 $c2011
520 $aGuineagrass (Panicum maximum Jacq.) is a forage grass found in tropical and subtropical regions. It is an apomictic and tetraploid species from Africa. The objective of this study was to evaluate the genetic diversity of guineagrass accessions sampled from its regions of origin, which is in Tanzania and Kenya. In this study, a total of 396 accessions were analyzed, and a collection of reproducible and informative microsatellites was developed. Thirty microsatellites were employed to characterize these accessions. A total of 576 clones were sequenced from microsatellite-enriched libraries. Flanking primers were designed for 116 microsatellite loci and screened using a sample of 25 guineagrass accessions. The thirty selected polymorphic microsatellites employed in this study produced a total of 192 bands when evaluated in the 396 P. maximum accessions, with an average of 6.4 bands per microsatellite. Four genetic clusters were identified in the collection using STRUCTURE analysis, and these results were confirmed using AMOVA. The largest genetic variation was found within clusters (65.38%). This study revealed that the collection of accessions from the P. maximum region of origin was a rich source of genetic variability. The geographical distances and genetic similarities among accessions did not indicate a significant association between genetic and geographical variation, supporting the natural interspecific crossing between P. maximum, P. infestum and P. trichocladum as the origin of the high genetic variability and the existence of an agamic complex formed by these three species.
650 $aMegathyrsus maximus
650 $aMarcador Molecular
650 $aMelhoramento Genético Vegetal
650 $aPastagem
653 $aDiversidade genética
653 $aMicrossatélite
653 $aPanicum maximum Jacq
700 1 $aJANK, L.
700 1 $aCAMPOS, T. de
700 1 $aSFORÇA, D. A.
700 1 $aZUCCHI, M. I.
700 1 $aSOUZA, A. P. de
773 $tTropical Plant Biology$gv.4, n.3-4, p. 185-202, 2011.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
20/10/2011 |
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Data da última atualização: |
20/10/2011 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
GODOY, R. C. B. de; WASZCZYNSKYJ, N.; SANTOS, G. G. dos; PEIXOTO, M. F. F.; SOUZA, J. N. de; LICHTEMBERG, L. A.; BIUDES, R. F.; OLIVEIRA, A. J. de. |
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Afiliação: |
ROSSANA CATIE BUENO DE GODOY, CNPF; Nina Waszczynskyj, UFPR; Guilherme Godoy dos Santos, UFSM; Mariza Flores Fernandes Peixoto, EMATER/MG; João Nishi de Souza, Instituto Paranaense de Assistência Técnica e Extensão Rural; Luiz Alberto Lichtemberg, Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina; Ruth Ferreira Biudes, Instituto Paranaense de Assistência Técnica e Extensão Rural; Agnaldo José de Oliveira, Coordenadoria de Assistência Tècnica Integral. |
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Título: |
A study of technological systems employed in banana jam agro-industrial units. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: ISHS/PROMUSA SYMPOSIUM, 2011, Salvador. Bananas and plantains: toward sustainable global production and improved uses: abstracts. [S.l.]: ISHS, 2011. p. 170. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Concentração. |
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Thesagro: |
Aditivo; Banana; Processamento. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/44053/1/A-study-of-technological-systems.pdf
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Marc: |
LEADER 00777nam a2200229 a 4500
001 1903626
005 2011-10-20
008 2011 bl uuuu u00u1 u #d
100 1 $aGODOY, R. C. B. de
245 $aA study of technological systems employed in banana jam agro-industrial units.
260 $aIn: ISHS/PROMUSA SYMPOSIUM, 2011, Salvador. Bananas and plantains: toward sustainable global production and improved uses: abstracts. [S.l.]: ISHS, 2011. p. 170.$c2011
650 $aAditivo
650 $aBanana
650 $aProcessamento
653 $aConcentração
700 1 $aWASZCZYNSKYJ, N.
700 1 $aSANTOS, G. G. dos
700 1 $aPEIXOTO, M. F. F.
700 1 $aSOUZA, J. N. de
700 1 $aLICHTEMBERG, L. A.
700 1 $aBIUDES, R. F.
700 1 $aOLIVEIRA, A. J. de
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Embrapa Florestas (CNPF) |
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