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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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| Registros recuperados : 9 | |
| 2. |  | BUOSO, M.; LOPES-ASSAD, M.-L. R. C.; LUNA, R. F.; PAVÃO, E. M.; MARIN, F. R. Expansão canavieira e desenvolvimento de municípios do estado de São Paulo. In: JORNADA CIENTÍFICA E TECNOLÓGICA DA UFSCAR, 8.; CONGRESSO DE INICIAÇÃO CIENTÍFICA, 17.; ENCONTRO DE EXTENSÃO, 7.; CONGRESSO DE PÓS-GRADUAÇÃO, 5.; WORKSHOP DE GRUPOS DE PESQUISA, 4.; CONGRESSO DE MEIO AMBIENTE DA AUGM, 6., 2009 Anais... São Carlos, SP: UFSCar, 2009. p. 457. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agricultura Digital. |
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| 3. | | SOUSA, L. F.; MOREIRA, G. R.; LEMOS FILHO, J. P. de; PACIULLO, D. S. C.; VENDRAMINI, J. M. B.; LUNA, R. E. M.; MAURÍCIO, R. M. Morpho-physiological and anatomical characteristics of Urochloa brizantha cv. Marandu in silvopastoral and monoculture systems. Acta Scientiarum. Animal Sciences, v. 45, e59494, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 4. | | SILVA, A. P. F.; GAMA, M. A. S. da; SILVA, E. A. M.; RIBEIRO, E. F.; FELIX, S. B.; MONTEIRO C. C. F.; MORA-LUNA, R. E.; OLIVEIRA, J. C. V. DE; SANTOS, D. C. DOS; FERREIRA, M. A. DE. Full-fat corn germ improves the performance and milk fat yield of Girolando cows fed sugarcane bagasse and cactus cladodes as forage sources. Tropical Animal Health and Production, v. 56, art. 104, 2024. 9 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 5. | | GROPPO, J. D.; LINS, S. R. M.; CAMARGO, P. B.; ASSAD, E. D.; PINTO, H. S.; MARTINS, S. C.; SALGADO, P. R.; EVANGELISTA, B.; VASCONCELLOS, E.; SANO, E. E.; PAVÃO, E.; LUNA, R.; MARTINELLI, L. A. Changes in soil carbon, nitrogen, and phosphorus due to land-use changes in Brazil. Biogeosciences, v. 12, n. 15, p. 4765-4780, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Pesca e Aquicultura. |
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| 6. | | ASSAD, E. D.; PINTO, H. S.; MARTINS, S. C.; GROPPO, J. D.; SALGADO, P. R.; EVANGELISTA, B.; VASCONCELLOS, E.; SANO, E. E.; PAVÃO, E.; LUNA, R.; CAMARGO, P. B.; MARTINELLI, L. A. Changes in soil carbon stocks in Brazil due to land use: paired site comparisons and a regional pasture soil survey. Biogeosciences, v. 10, n. 10, p. 6141-6160, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agricultura Digital. |
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| 7. | | SILVA, C. S. DA; GAMA, M. A. S. da; SILVA, E. A. M.; RIBEIRO, E. F.; SOUZA, F. G.; MONTEIRO, C. C. F.; MORA-LUNA, R. E.; OLIVEIRA, J. C. V.; SANTOS, D. C.; FERREIRA, M. DE A. Nutritional quality of milk fat from cows fed full-fat corn germ in diets containing cactus opuntia and sugarcane bagasse as forage sources. Animals, v. 13, n. 4, 568, 2023. 13 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 8. | | SANCHEZ, B. M. S.; VERAS, A. S. C.; FREITAS, E. V.; FARIAS, L. R.; ALBUQUERQUE, J. G. S. S.; ALMEIDA, G. A. P.; MORA-LUNA, R. E.; MONTEIRO, C. C. F.; GAMA, M. A. S. da; FERREIRA, M. A. Partial replacement of sugarcane with cactus (Opuntia stricta) cladodes improves milk yield and composition in Holstein dairy cows. Animal Production Science, 2022. Publicado online em 3 mar. 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | CORRÊA, A. M. N.; SILVA, C. S. da; GAMA, M. A. S. da; SOARES, L. F. P.; SOUZA, A. F. de; SIQUEIRA, M. C. B.; VASCONCELOS, E. Q. L. de; LICONA, V. J.; LUNA, R. E. M.; SANTOS, T. V. M. Feeding Cactus (Opuntia stricta [Haw.] Haw.) Cladodes as a Partial Substitute for Elephant Grass (Pennisetum purpureum Schum.) Induces Beneficial Changes in Milk Fatty Acid Composition of Dairy Goats Fed Full-Fat Corn Germ. Dairy, v. 6, n. 3, 23, 2025.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 9 | |
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