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Registros recuperados : 45 | |
41. | | BOCCHESE, R. A.; MELOTTO, A. M.; COSTA FILHO, L. C. C. da; FERNANDES, V.; NICODEMO, M. L. F.; LAURA, V. A. Avaliação da competição entre Brachiaria brizantha cv. Marandu, espécies arbóreas nativas do Cerrado e Eucalyptus citriodora. Revista Brasileira de Biociências, Porto Alegre, v. 5, supl. 2, p. 153-155, jul. 2007. Biblioteca(s): Embrapa Pecuária Sudeste. |
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42. | | MELOTTO, A. M; BOCHESE, R. A.; SCHLEDER, D. D.; NICODEMO, M. L. F.; LAURA, V. A.; GONTIJO NETO, M. M.; POTT, A. Avaliação do desenvolvimento e sobrevivência em campo de mudas florestais nativas do Brasil central indicadas para sistemas agroflorestais. In: JORNADA CIENTÍFICA DA EMBRAPA GADO DE CORTE, 1., 2005, Campo Grande, MS: Embrapa Gado de Corte, 2005. 1 p. Biblioteca(s): Embrapa Gado de Corte. |
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43. | | CORRÊA, A. R.; MONTANARI, R.; LAURA, V. A.; MELOTTO, A. M.; SILVA, E. N. S. da; PELLIN, D. M. P.; SANTOS, A. S. dos. Aspects of the silvopastoral system correlated with properties of a Typic Quartzipsamment (ENTISOL) in Mato Grosso do Sul, Brazil. Revista Brasileira de Ciência do solo, Viçosa, MG, v. 39, n. 2, p. 438-447, mar./abr. 2015. Biblioteca(s): Embrapa Gado de Corte. |
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44. | | FAVARO, S. P.; MALULEQUE, I. F.; PIMENTEL, L. D.; MELOTTO, A. M.; SCHULTZ, E. L.; ROSCOE, R.; MIRANDA, C. H. B.; COSSA, V. J.; FERNANDO, F. M. A.; MAMBA, A. C.; JAMAL, A. M. Cooperação Sul-Sul: Sistemas agroflorestais para produção de alimentos e energia em Moçambique. Brasília, DF : Embrapa Agroenergia, 2019. (Boletim de pesquisa e desenvolvimento / Embrapa Agroenergia, 19) Biblioteca(s): Embrapa Agroenergia. |
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45. | | CURADO FILHO, A. U. NICODEMO, M. L. F2. MELOTTO, A. M. SCHLEDER, D. D. BOCCHESE, R. A.; GONTIJO NETO, M. M. LAURA, V. A. GAÚNA, L. ZAGO, V. C. P. Avaliação da eficiência de repelentes orgânicos naturais para a introdução de árvores em pastagens com bovinos. In: CONGRESSO INTERNACIONAL DE ZOOTECNIA, 7.; CONGRESSO NACIONAL DE ZOOTECNIA, 10.; REUNIÃO NACIONAL DE ENSINO DE ZOOTECNIA, 11.; FÓRUM DE ENTIDADES DE ZOOTECNIA, 28.; FÓRUM DE COORDENADORES DE CURSOS DE ZOOTECNIA DAS UNIVERSIDADES BRASILEIRAS, 1., 2005, Campo Grande, MS. Produção animal e responsabilidade: [anais]. Campo Grande, MS: ABZ: UEMS: UFMS: CPAP: MAPA, 2005. Zootec 2005 6 p. 1 CD-ROM. p. Zootec 2005. Biblioteca(s): Embrapa Gado de Corte. |
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Registros recuperados : 45 | |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
24/06/2005 |
Data da última atualização: |
29/11/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - B |
Autoria: |
ALVES, R. M.; ARTERO, A. S.; SEBBENN, A. M.; FIGUEIRA, A. |
Afiliação: |
RAFAEL MOYSES ALVES, CPATU; ANGELA S. ARTERO, USP/CENA; ALEXANDRE M. SEBBENN, INSTITUTO FLORESTAL DE SÃO PAULO; ANTONIO FIGUEIRA, USP/CENA. |
Título: |
Mating system in a natural population of Theobroma grandiflorum (Willd. ex Spreng.) Schum., by microsatellite markers. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
Genetics and Molecular Biology, v. 26, n. 3, p. 373-379, 2003. |
Idioma: |
Inglês |
Conteúdo: |
The aim of this research was to study the mating system of a natural population of Theobroma grandiflorum (cupuassu) from Nova Ipixuna, Pará state, using microsatellite markers. Eight polymorphic microsatellite loci were analyzed in eight families, each represented by 10 six-month old seedlings derived from open-pollinated pods. The estimation for the multilocus outcrossing rate ($tm= 1.0) and individual outcrossing rate ($t= 1.0) for this population suggests that T. grandiflorum may be a perfect outbreeding (allogamous) species. Likewise, for the studied population the estimate for single locus outcrossing rate ($ts) was elevated (0.946), but lower than $tm, confirming the likely outcrossing character of the species and suggesting the occurrence of 5.4% biparental inbreeding rate ($tm-$ts). The estimation of genetic divergence ($FST) between allelic frequencies in ovules and pollen revealed a deviation from random mating in 75% of the evaluated loci. Likewise, the estimate of correlation of paternity ($rp= 0.930) and the mean coefficient of co-ancestrality within families ($?xy= 0.501) indicated that the outcrossings were predominantly correlated, and the offspring were full-sibs. These results suggested that for this particular population of T. grandiflorum, the sampling strategy for genetic conservation and breeding should adopt specific models for families derived from correlated outcrossing (full-sibs) and not the ones usually adopted in classic outcrossing species breeding programs (half-sibs). MenosThe aim of this research was to study the mating system of a natural population of Theobroma grandiflorum (cupuassu) from Nova Ipixuna, Pará state, using microsatellite markers. Eight polymorphic microsatellite loci were analyzed in eight families, each represented by 10 six-month old seedlings derived from open-pollinated pods. The estimation for the multilocus outcrossing rate ($tm= 1.0) and individual outcrossing rate ($t= 1.0) for this population suggests that T. grandiflorum may be a perfect outbreeding (allogamous) species. Likewise, for the studied population the estimate for single locus outcrossing rate ($ts) was elevated (0.946), but lower than $tm, confirming the likely outcrossing character of the species and suggesting the occurrence of 5.4% biparental inbreeding rate ($tm-$ts). The estimation of genetic divergence ($FST) between allelic frequencies in ovules and pollen revealed a deviation from random mating in 75% of the evaluated loci. Likewise, the estimate of correlation of paternity ($rp= 0.930) and the mean coefficient of co-ancestrality within families ($?xy= 0.501) indicated that the outcrossings were predominantly correlated, and the offspring were full-sibs. These results suggested that for this particular population of T. grandiflorum, the sampling strategy for genetic conservation and breeding should adopt specific models for families derived from correlated outcrossing (full-sibs) and not the ones usually adopted in classic outcrossing species bree... Mostrar Tudo |
Palavras-Chave: |
Brasil; Conservação de germoplasma; Nova Ipixuna; Pará; População natural. |
Thesagro: |
Cupuaçu; Genética. |
Thesaurus NAL: |
Amazonia. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/18122/1/a25v26n3.pdf
|
Marc: |
LEADER 02250naa a2200253 a 4500 001 1406930 005 2016-11-29 008 2003 bl uuuu u00u1 u #d 100 1 $aALVES, R. M. 245 $aMating system in a natural population of Theobroma grandiflorum (Willd. ex Spreng.) Schum., by microsatellite markers. 260 $c2003 520 $aThe aim of this research was to study the mating system of a natural population of Theobroma grandiflorum (cupuassu) from Nova Ipixuna, Pará state, using microsatellite markers. Eight polymorphic microsatellite loci were analyzed in eight families, each represented by 10 six-month old seedlings derived from open-pollinated pods. The estimation for the multilocus outcrossing rate ($tm= 1.0) and individual outcrossing rate ($t= 1.0) for this population suggests that T. grandiflorum may be a perfect outbreeding (allogamous) species. Likewise, for the studied population the estimate for single locus outcrossing rate ($ts) was elevated (0.946), but lower than $tm, confirming the likely outcrossing character of the species and suggesting the occurrence of 5.4% biparental inbreeding rate ($tm-$ts). The estimation of genetic divergence ($FST) between allelic frequencies in ovules and pollen revealed a deviation from random mating in 75% of the evaluated loci. Likewise, the estimate of correlation of paternity ($rp= 0.930) and the mean coefficient of co-ancestrality within families ($?xy= 0.501) indicated that the outcrossings were predominantly correlated, and the offspring were full-sibs. These results suggested that for this particular population of T. grandiflorum, the sampling strategy for genetic conservation and breeding should adopt specific models for families derived from correlated outcrossing (full-sibs) and not the ones usually adopted in classic outcrossing species breeding programs (half-sibs). 650 $aAmazonia 650 $aCupuaçu 650 $aGenética 653 $aBrasil 653 $aConservação de germoplasma 653 $aNova Ipixuna 653 $aPará 653 $aPopulação natural 700 1 $aARTERO, A. S. 700 1 $aSEBBENN, A. M. 700 1 $aFIGUEIRA, A. 773 $tGenetics and Molecular Biology$gv. 26, n. 3, p. 373-379, 2003.
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Embrapa Amazônia Oriental (CPATU) |
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