Mating system in Handroanthus heptaphyllus (Vell.) Mattos populations and its implications for seed collection to genetic conservation and breeding

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dc.contributor.authorMori, Neide Tomita [UNESP]
dc.contributor.authorMori, Edson Seizo [UNESP]
dc.contributor.authorTambarussi, Evandro Vagner
dc.contributor.authorTeixeira de Moraes, Mario Luiz [UNESP]
dc.contributor.authorSebbenn, Alexandre Magno
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionInst Florestal Sao Paulo
dc.date.accessioned2018-11-26T16:19:10Z
dc.date.available2018-11-26T16:19:10Z
dc.date.issued2015-09-01
dc.description.abstractHandroanthus heptaphyllus is a long-lived tropical tree, insect-pollinated, common in secondary vegetation, and is economical useful for urban and forest restoration purposes. However, when considering seed harvest for reforestation, it is fundamental to know the mating system of populations, since that determines the effective size of the sample. Therefore, the objective of this work was to study the mating system of two H. heptaphyllus populations, using microsatellite markers, to estimate the number of seed trees for seed collection procedures. To do that, open pollinated seeds were collected from 15 seed trees in a Lageado population and from 15 at Veu da Noiva. Population multilocus outcrossing rate (t(m)) was equal for the two provenances (t(m) = 1.0), however we observed individual variation for outcrossing rate among trees (0.68 to 0.99). The rate of mating among relatives (t(m) - t(s), minimum of 0.21) and multilocus paternity correlation (r(p), minimum of 0.11) were substantial in both populations, where 97% of the trees crossed with relatives. This suggests a spatial genetic structure in the populations from where seeds were harvested. Due to correlated mating, the co-ancestry within progenies was higher (Theta minimum of 0.139) and effective size was smaller (Theta maximum of 3.07) than the expected in half-sibs (Theta = 0.125, N-is an element of = 4). Consequently, the number of seed trees for seed harvest for breeding, conservation, and reforestation programs must be at least 49.en
dc.description.affiliationUNESP Univ Estadual Paulista JuIlio de Mesquita F, Ciencia Florestal, BR-18610307 Botucatu, SP, Brazil
dc.description.affiliationUNESP Univ Estadual Paulista JuIlio de Mesquita F, BR-18610307 Botucatu, SP, Brazil
dc.description.affiliationUFSCar Univ Fed Sao Carlos, Dept Biol, BR-18052780 Sorocaba, SP, Brazil
dc.description.affiliationUNESP Univ Estadual Paulista JuIlio de Mesquita F, FEIS, Ilha Solteira, SP, Brazil
dc.description.affiliationInst Florestal Sao Paulo, Estacao Expt Tupi, Cient, BR-13400970 Piracicaba, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Paulista JuIlio de Mesquita F, Ciencia Florestal, BR-18610307 Botucatu, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Paulista JuIlio de Mesquita F, BR-18610307 Botucatu, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Paulista JuIlio de Mesquita F, FEIS, Ilha Solteira, SP, Brazil
dc.format.extent675-681
dc.identifier.citationScientia Forestalis. Piracicaba: Ipef-inst Pesquisas Estudos Florestais, v. 43, n. 107, p. 675-681, 2015.
dc.identifier.issn1413-9324
dc.identifier.urihttp://hdl.handle.net/11449/161109
dc.identifier.wosWOS:000367705000019
dc.language.isopor
dc.publisherIpef-inst Pesquisas Estudos Florestais
dc.relation.ispartofScientia Forestalis
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectnnicrosatellite molecular markers
dc.subjectprogenies
dc.subjectmating systems
dc.subjectgenetic diversity
dc.titleMating system in Handroanthus heptaphyllus (Vell.) Mattos populations and its implications for seed collection to genetic conservation and breedingen
dc.typeArtigo
dcterms.rightsHolderIpef-inst Pesquisas Estudos Florestais
unesp.departmentCiência Florestal - FCApt

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Botucatu - FCA - Faculdade de Ciências Agronômicas