Sistema de reprodução em populações naturais de Peltophorum dubium

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dc.contributor.authorMori, Edson Seizo [UNESP]
dc.contributor.authorSebbenn, Alexandre Magno
dc.contributor.authorTambarussi, Evandro Vagner
dc.contributor.authorGuries, Raymond Paul
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Florestal Sao Paulo
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Wisconsin
dc.date.accessioned2014-12-03T13:09:11Z
dc.date.available2014-12-03T13:09:11Z
dc.date.issued2013-09-01
dc.description.abstractA Multi-locus mixed mating model and correlated mating model were used to analyze the mating system of four natural populations of Peltophorum dubium (Sprengel) Taubert from Western Sao Paulo State, Brazil. Open pollinated seeds were collected from 19 to 33 seed-trees per population and evaluated by allozyme electrophoresis analysis. Significant differences between pollen and ovule gene frequencies were detected in more than 50% of loci in each population, indicating deviations from random mating, probably due to correlated mating, self-fertilizations and mating among relatives. The comparison the fixation index estimated from seed trees ((F) over cap (m), ranged from 0.009 to 0.285) with their progenies ((F) over cap (p), ranged from 0.127 to 0.364) suggested selection against inbreeding between offspring of adult stages. The estimates of multi-locus outcrossing rate (t(m)) ranged from 0.557 to 0.924, indicating that the species has a mixed-mating system. Differences between multi-locus and single-locus outcrossing rate (t(m)-t(s))was positive and significantly different from zero for all populations, with values ranging from 0.092 to 0.111, suggesting mating among relatives within the populations, probably due to the presence of intra-population spatial genetic structure. The mean coefficient of co-ancestry (Theta) within progenies ranged from 0.147 to 0.251; confirming that the progenies are compounded by mixtures of different kinds of relatedness. The results are discussed from the view of genetic improvement and conservation of the species.en
dc.description.affiliationUniv Estadual Paulista, UNESP, BR-18603970 Botucatu, SP, Brazil
dc.description.affiliationInst Florestal Sao Paulo, BR-01059970 Sao Paulo, Brazil
dc.description.affiliationUniv Sao Paulo Escola, USP, ESALQ, BR-13418900 Piracicaba, SP, Brazil
dc.description.affiliationUniv Wisconsin, Dept Forest & Wildlife Ecol, Madison, WI 53706 USA
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, BR-18603970 Botucatu, SP, Brazil
dc.format.extent307-317
dc.identifierhttp://www.ipef.br/publicacoes/scientia/leitura.asp?Article=02&Number=99
dc.identifier.citationScientia Forestalis. Piracicaba: Ipef-inst Pesquisas Estudos Florestais, v. 41, n. 99, p. 307-317, 2013.
dc.identifier.fileWOS000326852000002.pdf
dc.identifier.issn1413-9324
dc.identifier.lattes4724674295725958
dc.identifier.urihttp://hdl.handle.net/11449/112035
dc.identifier.wosWOS:000326852000002
dc.language.isopor
dc.publisherIpef-inst Pesquisas Estudos Florestais
dc.relation.ispartofScientia Forestalis
dc.relation.ispartofjcr0.500
dc.relation.ispartofsjr0,495
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectCana-fistulaen
dc.subjectco-ancestryen
dc.subjectcorrelated matingen
dc.subjectinbreedingen
dc.subjectisozynnesen
dc.subjectoutcrossing rateen
dc.titleSistema de reprodução em populações naturais de Peltophorum dubiumpt
dc.title.alternativeMating system in natural populations of Peltophorum dubiumen
dc.typeArtigo
dcterms.rightsHolderIpef-inst Pesquisas Estudos Florestais
unesp.author.lattes4724674295725958
unesp.author.orcid0000-0003-2352-0941[2]
unesp.author.orcid0000-0001-9478-5379[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agronômicas, Botucatupt
unesp.departmentProdução e Melhoramento Vegetal - FCApt

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