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Registro Completo |
Biblioteca(s): |
Embrapa Acre; Embrapa Unidades Centrais. |
Data corrente: |
13/08/2013 |
Data da última atualização: |
06/07/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CAMPOS, T. de; CUNHA, M. O. da; SOUSA, A. C. B. de; TEIXEIRA, R. B.; RAPOSO, A.; SEBBENN, A. M.; WADT, L. H. de O. |
Afiliação: |
TATIANA DE CAMPOS, CPAF-AC; Marcia Oliveira da Cunha, Uninorte; Adna Cristina Barbosa de Sousa, Universidade do Estado da Bahia; RENATA BELTRAO TEIXEIRA, CPAF-AC; ANDREA RAPOSO, CPAF-AC; Alexandre Magno Sebbenn, Instituto Florestal de São Paulo; LUCIA HELENA DE OLIVEIRA WADT, CPAF-AC. |
Título: |
Mating system parameters in a high density population of andirobas in the Amazon forest. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 48, n. 5, p. 504-509, maio 2013. |
Idioma: |
Inglês |
Conteúdo: |
The objective of this work was to estimate the mating system parameters of a andiroba (Carapa guianensis) population using microsatellite markers and the mixed and correlated mating models. Twelve open‑pollinated progeny arrays of 15 individuals were sampled in an area with C. guianensis estimated density of 25.7 trees per hectare. Overall, the species has a mixed reproductive system, with a predominance of outcrossing. The multilocus outcrossing rate (tm = 0.862) was significantly lower than the unity, indicating that self‑pollination occurred. The rate of biparental inbreeding was substantial (tm ‑ ts = 0.134) and significantly different from zero. The correlation of selfing within progenies was high (rs = 0.635), indicating variation in the individual outcrossing rate. Consistent with this result, the estimate of the individual outcrossing rate ranged from 0.598 to 0.978. The multilocus correlation of paternity was low (rp(m) = 0.081), but significantly different from zero, suggesting that the progenies contain full‑sibs. The coancestry within progenies (Θ = 0.185) was higher and the variance effective size (Ne(v) = 2.7) was lower than expected for true half‑sib progenies (Θ = 0.125; Ne(v) = 4). These results suggest that, in order to maintain a minimum effective size of 150 individuals for breeding, genetic conservation, and environmental reforestation programs, seeds from at least 56 trees must be collected. |
Palavras-Chave: |
Allogamy; Conservation; Cruce; Fitomejoramiento; Genetic breeding; Madera tropical; Marcador microssatélite; Marcadores genéticos; Microssatélite; Repeticiones de microsatélite. |
Thesagro: |
Alogamia; Andiroba; Carapa Guianensis; Conservação; Cruzamento; Essência florestal; Marcador genético; Melhoramento genético vegetal; Reprodução vegetal. |
Thesaurus Nal: |
Crossing; Genetic markers; Microsatellite repeats; Plant breeding; Population size; Tropical wood. |
Categoria do assunto: |
-- G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/89257/1/24682.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/87640/1/Mating-system.pdf
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Marc: |
LEADER 02881naa a2200493 a 4500 001 1966022 005 2021-07-06 008 2013 bl uuuu u00u1 u #d 100 1 $aCAMPOS, T. de 245 $aMating system parameters in a high density population of andirobas in the Amazon forest. 260 $c2013 520 $aThe objective of this work was to estimate the mating system parameters of a andiroba (Carapa guianensis) population using microsatellite markers and the mixed and correlated mating models. Twelve open‑pollinated progeny arrays of 15 individuals were sampled in an area with C. guianensis estimated density of 25.7 trees per hectare. Overall, the species has a mixed reproductive system, with a predominance of outcrossing. The multilocus outcrossing rate (tm = 0.862) was significantly lower than the unity, indicating that self‑pollination occurred. The rate of biparental inbreeding was substantial (tm ‑ ts = 0.134) and significantly different from zero. The correlation of selfing within progenies was high (rs = 0.635), indicating variation in the individual outcrossing rate. Consistent with this result, the estimate of the individual outcrossing rate ranged from 0.598 to 0.978. The multilocus correlation of paternity was low (rp(m) = 0.081), but significantly different from zero, suggesting that the progenies contain full‑sibs. The coancestry within progenies (Θ = 0.185) was higher and the variance effective size (Ne(v) = 2.7) was lower than expected for true half‑sib progenies (Θ = 0.125; Ne(v) = 4). These results suggest that, in order to maintain a minimum effective size of 150 individuals for breeding, genetic conservation, and environmental reforestation programs, seeds from at least 56 trees must be collected. 650 $aCrossing 650 $aGenetic markers 650 $aMicrosatellite repeats 650 $aPlant breeding 650 $aPopulation size 650 $aTropical wood 650 $aAlogamia 650 $aAndiroba 650 $aCarapa Guianensis 650 $aConservação 650 $aCruzamento 650 $aEssência florestal 650 $aMarcador genético 650 $aMelhoramento genético vegetal 650 $aReprodução vegetal 653 $aAllogamy 653 $aConservation 653 $aCruce 653 $aFitomejoramiento 653 $aGenetic breeding 653 $aMadera tropical 653 $aMarcador microssatélite 653 $aMarcadores genéticos 653 $aMicrossatélite 653 $aRepeticiones de microsatélite 700 1 $aCUNHA, M. O. da 700 1 $aSOUSA, A. C. B. de 700 1 $aTEIXEIRA, R. B. 700 1 $aRAPOSO, A. 700 1 $aSEBBENN, A. M. 700 1 $aWADT, L. H. de O. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 48, n. 5, p. 504-509, maio 2013.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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14. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | SILVA, É. L.; ALVES, R. M.; ALBUQUERQUE, P. S. B.; SEBBENN, A. M. Diversidade genética entre clones de cupuaçuzeiro com o uso de marcadores moleculares do tipo microssatélites. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA UFRA, 6.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL (AVALIAÇÃO - 2008), 12., 2008, Belém, PA. A importância da iniciação científica para a pós-graduação: anais. Belém, PA: UFRA: Embrapa Amazônia Oriental, 2008. Programa Institucional de Bolsas de Iniciação Científica (PIBIC). Disponível também on-line.Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Amazônia Oriental. |
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19. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | CAMBUIM, J.; AGUIAR, A. V. de; ZARUMA, D.; MORAES, M.; FREITAS, M.; SEBBENN, A. Sex ratio and status number in progenies test of dioecious tree species. The International Forestry Review, v. 16, n. 5, p. 375, 2014. Edição dos abstracts do 24º IUFRO World Congress, 2014, Salt Lake City. Sustaining forests, sustaining people: the role of research.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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