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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: |
21/02/2011 |
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Data da última atualização: |
05/08/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GARCIA, M. de O. S.; RESENDE, R. M. S.; CHIARI, L.; ZUCCHI, M. I.; SOUZA, A. P. de. |
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Afiliação: |
Melissa de Oliveira Santos-Garcia, UNICAMP; ROSANGELA MARIA SIMEAO RESENDE, CNPGC; LUCIMARA CHIARI, CNPGC; Maria Imaculada Zucchi, Polo Apta Centro Sul; Anete Pereira de Souza, UNICAMP. |
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Título: |
Mating systems in tropical forages: Stylosanthes capitata Vog. and Stylosanthes guianensis (Aubl.) Sw. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Euphytica, v. 178, n. 2, p.185-193, Mar. 2011 |
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Idioma: |
Português |
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Conteúdo: |
Stylosanthes capitata and S. guianensis are important forage legumes for tropical areas. The only available estimates of S. capitata and S. guianensis outcrossing rates were based on morphological markers, and the genus is considered as being mainly self-pollinated. Here we describe an estimation of the outcrossing rate in S. capitata and S. guianensis using microsatellite markers. The outcrossing rates were estimated in S. capitata and S. guianensis openpollinated populations of 20 progenies consisting of ten individuals each. The multi locus outcrossing rate for S. capitata was estimated using 10 polymorphic loci, whereas five microsatellites were used for S. guianensis. The multi locus outcrossing rates for S. capitata and S. guianensis were 31 and 26%, respectively, suggesting a mixed mating system with predominance of autogamy. Comparison of single locus and multi locus estimates of outcrossing rates indicated that little inbreeding other than selfing occurred. The estimated Wright?s fixation index of the parental generation was lower than expected based on the multi locus outcrossing rate, possibly resulting from the use of some heterozygous breeding genotypes for the study. The data on the outcrossing rate described here are potentially useful for breeding programs and for maintenance of germplasm collections of these Stylosanthes species. |
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Palavras-Chave: |
Stylosanthe guianensis. |
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Thesagro: |
Leguminosa Forrageira; Pastagem. |
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Thesaurus Nal: |
Stylosanthes capitata. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02031naa a2200217 a 4500
001 1878212
005 2011-08-05
008 2011 bl uuuu u00u1 u #d
100 1 $aGARCIA, M. de O. S.
245 $aMating systems in tropical forages$bStylosanthes capitata Vog. and Stylosanthes guianensis (Aubl.) Sw.$h[electronic resource]
260 $c2011
520 $aStylosanthes capitata and S. guianensis are important forage legumes for tropical areas. The only available estimates of S. capitata and S. guianensis outcrossing rates were based on morphological markers, and the genus is considered as being mainly self-pollinated. Here we describe an estimation of the outcrossing rate in S. capitata and S. guianensis using microsatellite markers. The outcrossing rates were estimated in S. capitata and S. guianensis openpollinated populations of 20 progenies consisting of ten individuals each. The multi locus outcrossing rate for S. capitata was estimated using 10 polymorphic loci, whereas five microsatellites were used for S. guianensis. The multi locus outcrossing rates for S. capitata and S. guianensis were 31 and 26%, respectively, suggesting a mixed mating system with predominance of autogamy. Comparison of single locus and multi locus estimates of outcrossing rates indicated that little inbreeding other than selfing occurred. The estimated Wright?s fixation index of the parental generation was lower than expected based on the multi locus outcrossing rate, possibly resulting from the use of some heterozygous breeding genotypes for the study. The data on the outcrossing rate described here are potentially useful for breeding programs and for maintenance of germplasm collections of these Stylosanthes species.
650 $aStylosanthes capitata
650 $aLeguminosa Forrageira
650 $aPastagem
653 $aStylosanthe guianensis
700 1 $aRESENDE, R. M. S.
700 1 $aCHIARI, L.
700 1 $aZUCCHI, M. I.
700 1 $aSOUZA, A. P. de
773 $tEuphytica$gv. 178, n. 2, p.185-193, Mar. 2011
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| 18. |  | PEREIRA, E. M.; ARAÚJO, M. V.; MAGARELLI, G.; FERREIRA, D. N. M. Ácaros detectados na estação Quarentenária de Germoplasma Vegetal, Embrapa Recursos Genéticos e Biotecnologia. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 14., 2009, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2009. Resumo 125. p. 177| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 20. | | FERREIRA, D. N. M.; ROCHA, H. M. C.; PEREIRA, E. M.; ROCHA, D. A.; MAGARELLI, G. Ácaros interceptados na Estação Quarentenária de Germoplasma Vegetal, Embrapa Recursos Genéticos e Bioteconologia, de 2008 a 2010. In: SIMPÓSIO BRASILEIRO DE ACAROLOGIA, 3., 2011, Campinas. [Resumos...]. Campinas: Instituto Biológico, 2011.| Tipo: Resumo em Anais de Congresso |
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