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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Milho e Sorgo; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
21/09/2018 |
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Data da última atualização: |
26/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUSTINA, L. D.; BALDONI, A. B.; TONINI, H.; AZEVEDO, V. C. R.; NEVES, L. G.; TARDIN, F. D.; SEBBENN, A. M. |
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Afiliação: |
LUANA DELLA GIUSTINA, Universidade Federal de Mato Grosso, Cuiabá; AISY BOTEGA BALDONI TARDIN, CPAMT; HELIO TONINI, CPPSUL; VANIA CRISTINA RENNO AZEVEDO, Cenargen; LEONARDA GRILLO NEVES, Universidade do Estado de Mato Grosso, Caceres; FLAVIO DESSAUNE TARDIN, CNPMS; ALEXANDRE MAGNO SEBBENN, Instituto Florestal de São Paulo, Piracicaba. |
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Título: |
Hierarchical outcrossing among and within fruits in Bertholletia excelsa Bonpl. (Lecythidaceae) open-pollinated seeds. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 17, n. 1, p. 1-11, 2018. |
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DOI: |
http://dx.doi.org/10.4238/gmr16039872 |
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Idioma: |
Inglês |
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Notas: |
Article gmr16039872. |
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Conteúdo: |
Knowing the mating patterns is important to determine the number of trees necessary for seed collection for conservation ex situ, tree breeding and environmental reforestation purposes. We investigated B. excelsa individuals and fruits, to check mating system index variations in a population by using open-pollinated seeds which were hierarchically sampled within and among fruits from nine trees genotyped for ten microsatellite loci. Outcrossing rate ( tm ) changed between trees (0.49?1.0) and fruits (0.53?1.0), but seeds were predominantly produced by outcrossing (0.92) at mean population level. Mating between related trees ( tm ts ) was detected in six trees (0.04?0.08) and in 32 fruits in trees (0.03?0.22), thus it suggests that the population presented some related trees in our intra-population spatial genetic structure. Individual fixation index values of seed trees ( Fm ) were lower than the seedling fixation index values ( o F ), fact that suggests the selection against inbred individuals between the seed and adult stages. The correlated mating showed that seeds sampled at population level were predominantly composed of half-sibs (66%) and full-sibs (20%). Paternity correlation was significantly higher within (p(w) r ) than among ( p(a) r ) fruits at population level, mostly in individual trees. Results evidenced that mating was not random due to self-fertilization, to mating between related trees and correlated mating, and families comprised different relatedness levels such as half-sibs, full-sibs, self-sibs and self-half-sibs; some cases, mating presented inbreeding. These results were addressed to discuss strategies for seed collection applied to conservation ex situ, tree breeding and environmental reforestation. MenosKnowing the mating patterns is important to determine the number of trees necessary for seed collection for conservation ex situ, tree breeding and environmental reforestation purposes. We investigated B. excelsa individuals and fruits, to check mating system index variations in a population by using open-pollinated seeds which were hierarchically sampled within and among fruits from nine trees genotyped for ten microsatellite loci. Outcrossing rate ( tm ) changed between trees (0.49?1.0) and fruits (0.53?1.0), but seeds were predominantly produced by outcrossing (0.92) at mean population level. Mating between related trees ( tm ts ) was detected in six trees (0.04?0.08) and in 32 fruits in trees (0.03?0.22), thus it suggests that the population presented some related trees in our intra-population spatial genetic structure. Individual fixation index values of seed trees ( Fm ) were lower than the seedling fixation index values ( o F ), fact that suggests the selection against inbred individuals between the seed and adult stages. The correlated mating showed that seeds sampled at population level were predominantly composed of half-sibs (66%) and full-sibs (20%). Paternity correlation was significantly higher within (p(w) r ) than among ( p(a) r ) fruits at population level, mostly in individual trees. Results evidenced that mating was not random due to self-fertilization, to mating between related trees and correlated mating, and families comprised different related... Mostrar Tudo |
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Thesagro: |
Árvore; Bertholletia Excelsa; Castanha do Para; Conservação; Genética; Marcador Genético; Melhoramento; Polinização; Semente. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183522/1/2018-aisy-baldoni-hierarchical-outcrossing-fruits-bertholletia-pollinated.pdf
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Marc: |
LEADER 02734naa a2200325 a 4500
001 2096307
005 2018-09-26
008 2018 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.4238/gmr16039872$2DOI
100 1 $aGUSTINA, L. D.
245 $aHierarchical outcrossing among and within fruits in Bertholletia excelsa Bonpl. (Lecythidaceae) open-pollinated seeds.$h[electronic resource]
260 $c2018
500 $aArticle gmr16039872.
520 $aKnowing the mating patterns is important to determine the number of trees necessary for seed collection for conservation ex situ, tree breeding and environmental reforestation purposes. We investigated B. excelsa individuals and fruits, to check mating system index variations in a population by using open-pollinated seeds which were hierarchically sampled within and among fruits from nine trees genotyped for ten microsatellite loci. Outcrossing rate ( tm ) changed between trees (0.49?1.0) and fruits (0.53?1.0), but seeds were predominantly produced by outcrossing (0.92) at mean population level. Mating between related trees ( tm ts ) was detected in six trees (0.04?0.08) and in 32 fruits in trees (0.03?0.22), thus it suggests that the population presented some related trees in our intra-population spatial genetic structure. Individual fixation index values of seed trees ( Fm ) were lower than the seedling fixation index values ( o F ), fact that suggests the selection against inbred individuals between the seed and adult stages. The correlated mating showed that seeds sampled at population level were predominantly composed of half-sibs (66%) and full-sibs (20%). Paternity correlation was significantly higher within (p(w) r ) than among ( p(a) r ) fruits at population level, mostly in individual trees. Results evidenced that mating was not random due to self-fertilization, to mating between related trees and correlated mating, and families comprised different relatedness levels such as half-sibs, full-sibs, self-sibs and self-half-sibs; some cases, mating presented inbreeding. These results were addressed to discuss strategies for seed collection applied to conservation ex situ, tree breeding and environmental reforestation.
650 $aÁrvore
650 $aBertholletia Excelsa
650 $aCastanha do Para
650 $aConservação
650 $aGenética
650 $aMarcador Genético
650 $aMelhoramento
650 $aPolinização
650 $aSemente
700 1 $aBALDONI, A. B.
700 1 $aTONINI, H.
700 1 $aAZEVEDO, V. C. R.
700 1 $aNEVES, L. G.
700 1 $aTARDIN, F. D.
700 1 $aSEBBENN, A. M.
773 $tGenetics and Molecular Research$gv. 17, n. 1, p. 1-11, 2018.
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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| Registros recuperados : 149 | |
| 1. |  | AZEVEDO, V. C. R. Caracterização de recursos genéticos florestais. In: SIMPÓSIO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2008, Brasília, DF. Anais... Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia: Fundação de Apoio à Pesquisa Científica e Tecnológica - FUNCREDI, 2008. p.43.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 8. | | SUJII, P. S.; AZEVEDO, V. C. R.; CIAMPI, A. Y. Estimativa de diversidade genética de cedro (Meliaceae), uma espécie ameaçada. In : ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 12., 2007, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2007. p. 199.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 10. | | AZEVEDO, G. R.; AZEVEDO, V. C. R.; CIAMPI, A. Y. Fluxo gênico entre Gossypium barbadense e Gossypium hirsutum, na região do Goiás, analisado por meio de marcadores moleculares microssatélites. In: SIMPOSIO DE RECURSOS GENÉTICOS PARA AMÉRICA LATINA Y EL CARIBE, SIRGEALC, 7., 2009, Pucón, Chile. Proceeding... Santiago de Chile: Ministério de Agricultura, Instituto de Investigaciones Agropecuarias, 2009. p. 359-360.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 20. | | PANTALEÃO, D. C.; LACERDA, A. L. M.; AZEVEDO, V. C. R.; PIRES, C.; SUJII, E. Ação cairomonal de (e)-2-hexenal, componente do feromônio de alarme do percevejo - pequeno da soja, Piezodorus guildinii. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 5., 2000, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2000. p. 68.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 149 | |
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