Sistema de reprodução, parentesco e tamanho efetivo em sementes de polinização livre de populações fragmentadas de Copaifera langsdorffii Desf. por análise de locos microssatélites

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorManoel, Ricardo de Oliveira
dc.creatorCardin, Laila Toniol
dc.creatorMoreira, Juliana Prado
dc.creatorDa Silva, Érica Cristina Bueno
dc.creatorSenna, Sirlene Do Nascimento
dc.creatorKubota, Thaisa Yuriko Kuboyama
dc.creatorFreitas, Miguel Luiz Menezes
dc.creatorDe Moraes, Mário Luiz Teixeira
dc.creatorSebbenn, Alexandre Magno
dc.date2014-05-27T11:26:50Z
dc.date2016-10-25T18:37:20Z
dc.date2014-05-27T11:26:50Z
dc.date2016-10-25T18:37:20Z
dc.date2012-06-01
dc.date.accessioned2017-04-06T01:59:00Z
dc.date.available2017-04-06T01:59:00Z
dc.identifierScientia Forestalis/Forest Sciences, v. 40, n. 94, p. 145-155, 2012.
dc.identifier1413-9324
dc.identifierhttp://hdl.handle.net/11449/73360
dc.identifierhttp://acervodigital.unesp.br/handle/11449/73360
dc.identifierWOS:000306678500002
dc.identifier2-s2.0-84863607852.pdf
dc.identifier2-s2.0-84863607852
dc.identifierhttp://www.ipef.br/publicacoes/scientia/nr93/cap07.pdf
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/894169
dc.descriptionAnthropogenic changes in the reproductive population density can affect the mating system and result in an increase in selfing and correlated matings. This study investigated the mating system in small fragmented populations of the insect pollinated tropical tree species Copaifera langsdorffii, using microsatellite loci and the mixed and correlated mating models. Open-pollinated seeds were collected from 15 seed-trees located in a small forest fragment (4.8 ha), denominated Bosque and from 14 other seed-trees located in other small forest fragments of the north-western region of São Paulo State. No significant differences were observed between the seed-trees from Bosque (tm=0.933±0.028) and other fragments (tm=0.971±0.032), although these estimates were significantly different from 1.0, suggesting that selfing was occurring. Differences between multilocus and unilocus outcrossing rate were significantly high in both seed-trees of Bosque (tm -ts=0.478±0.05) and other forest fragments (tm -ts=0.475±0.018), suggesting a spatial genetic structure in those stands. The results also showed high rates of correlated mating in the samples, indicating that a good part of the offspring were full-sibs. As a consequence of selfing, mating among relatives and correlated matings, the coancestry within families was equally high in the seed-trees of Bosque ((Θ=0.237) and in the seed-trees of the other forest fragments (Θ=0.241) and the effective population size was lower than expected in panmitic populations (Ne<4). The results were discussed, focusing on the sample size of seed-trees to collect seeds for genetic conservation and enviromental reforestation.
dc.languagepor
dc.relationScientia Forestalis/Forest Sciences
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBiparental inbreeding
dc.subjectCoancestry
dc.subjectCopaiba
dc.subjectCorrelated mating
dc.subjectOutcrossing rate
dc.subjectTropical tree species
dc.subjectPopulation statistics
dc.subjectReforestation
dc.subjectDNA sequences
dc.titleSistema de reprodução, parentesco e tamanho efetivo em sementes de polinização livre de populações fragmentadas de Copaifera langsdorffii Desf. por análise de locos microssatélites
dc.typeOtro


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