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dc.contributor.authorWADT, L. H. de O.pt_BR
dc.contributor.authorBALDONI, A. B.pt_BR
dc.contributor.authorSILVA, V. S.pt_BR
dc.contributor.authorCAMPOS, T. dept_BR
dc.contributor.authorMARTINS, K.pt_BR
dc.contributor.authorAZEVEDO, V. C. R.pt_BR
dc.contributor.authorMATA, L. R. dapt_BR
dc.contributor.authorBOTIN, A. A.pt_BR
dc.contributor.authorHOOGERHEIDE, E. S. S.pt_BR
dc.contributor.authorTONINI, H.pt_BR
dc.contributor.authorSEBBENN, A. M.pt_BR
dc.contributor.otherLUCIA HELENA DE OLIVEIRA WADT, CPAF-Rondonia; AISY BOTEGA BALDONI TARDIN, CPAMT; Universidade Federal do Acre; TATIANA DE CAMPOS, CPAF-Acre; Universidade Federal de São Carlos; VANIA CRISTINA RENNO AZEVEDO, Cenargen; LORENA RAMOS DA MATA, Cenargen; Universidade Federal de Mato Grosso; EULALIA SOLER SOBREIRA HOOGERHEIDE, CPAMT; HELIO TONINI, CPAMT; Instituto Florestal de São Paulo.pt_BR
dc.descriptionThe aim of this study was to investigate variation in mating system among three Brazilian Amazon populations of the tree Bertholletia excelsa with different levels of anthropogenic interventions. We collected open-pollinated seeds from one natural population, remnant trees dispersed in a pasture, and trees from a plantation. Outcrossing rate not varied among the populations and indicates that all seeds were originated from outcrossing (tm=1.0). Mating among relatives was significant higher in the plantation than forest and pasture populations, probably due the fact that many trees are related in the plantation. Correlated mating was significantly higher in pasture (rp=0.47) and plantation (rp=0.51) than in the natural population (rp=0.22), suggesting that trees in natural population are pollinated by a higher number of pollen donors. The paternity correlation was significantly higher within (rp(w)=0.41) than among fruits (rp(a)=0.18), showing a higher probability to find full-sibs within than among fruits. The fixation index was generally lower in seed trees than in their seedlings, suggesting selection for heterozygous individuals from seedling to adult stages. Progeny arrays collected from the natural population had a lower proportion of pairwise full-sibs than in pasture and plantation and higher variance effective size (2.75) than trees in pasture (2.15) and plantations (2.22). Results highlight that seed collections for conservation, breeding and reforestation programs preferentially should be carried out in natural populations due low proportion highest variance effective size within progeny.pt_BR
dc.publisherSilvae Genetica, Deutschland, v. 64, p. 5-6, 2015.pt_BR
dc.relation.ispartofEmbrapa Acre - Artigo em periódico indexado (ALICE)pt_BR
dc.subjectCastanha do brasilpt_BR
dc.subjectAção antrópicapt_BR
dc.subjectMarcador microssatélitept_BR
dc.subjectEmbrapa Acrept_BR
dc.subjectRio Branco (AC)pt_BR
dc.subjectAmazônia Ocidentalpt_BR
dc.subjectWestern Amazonpt_BR
dc.subjectAmazonia Occidentalpt_BR
dc.subjectEmbrapa Recursos Genéticos e Biotecnologiapt_BR
dc.subjectMato Grossopt_BR
dc.subjectActividades antropogénicaspt_BR
dc.subjectMadera tropicalpt_BR
dc.subjectNuez del Brasilpt_BR
dc.subjectMarcadores genéticospt_BR
dc.subjectRepeticiones de microsatélite.pt_BR
dc.titleMating system variation among populations, individuals and within and among fruits in Bertholletia excelsa.pt_BR
dc.typeArtigo em periódico indexado (ALICE)pt_BR
dc.subject.thesagroMelhoramento genético vegetalpt_BR
dc.subject.thesagroReprodução vegetalpt_BR
dc.subject.thesagroEssência florestalpt_BR
dc.subject.thesagroCastanha do parápt_BR
dc.subject.thesagroBertholletia excelsapt_BR
dc.subject.thesagroPopulação de plantapt_BR
dc.subject.thesagroMarcador genéticopt_BR
dc.subject.thesagroCampo Experimentalpt_BR
dc.subject.nalthesaurusPlant breedingpt_BR
dc.subject.nalthesaurusTropical woodpt_BR
dc.subject.nalthesaurusBrazil nutspt_BR
dc.subject.nalthesaurusAnthropogenic activitiespt_BR
dc.subject.nalthesaurusGenetic markerspt_BR
dc.subject.nalthesaurusMicrosatellite repeats.pt_BR
Appears in Collections:Artigo em periódico indexado (CPAF-AC)

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