Estimating genetic diversity, mating system and pollen dispersal to inform ex situ conservation of the tree Genipa americana L.

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dc.contributor.authorMelo, Marília Freitas De Vasconcelos
dc.contributor.authorSebbenn, Alexandre Magno
dc.contributor.authorRossini, Bruno Cesar [UNESP]
dc.contributor.authorMuniz, Ana Veruska Cruz Da Silva
dc.contributor.authorRodrigues, Carlos Jose
dc.contributor.authorMarino, Celso Luis [UNESP]
dc.contributor.authorMoraes, Mario Luiz Teixeira De [UNESP]
dc.contributor.institutionUniversidade Federal Do Alagoas
dc.contributor.institutionInstituto Florestal de São Paulo
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUsina Porto Primavera
dc.date.accessioned2021-06-25T11:03:08Z
dc.date.available2021-06-25T11:03:08Z
dc.date.issued2021-02-01
dc.description.abstractUsing microsatellite loci, we assessed the mating system and genetic diversity of the dioecious tropical tree Genipa americana in a natural population (NP) and a progeny test (PT). For NP, we also estimated the paternity correlation within and among fruits and mean pollen dispersal distance. As expected for dioecious species, all offspring originated from outcrossing (t = 1). Mating among relatives (1-ts) and paternity correlation (rp) were variable among progenies (1-ts = 0.03-0.19; rp = 0.04-0.40), but greater in NP than in PT. Fixation index (F) was generally significant and lower in adults than in offspring, indicating selection against inbred individuals. Paternity correlation was higher within (0.40) than among (0.26) fruits, indicating a lower effective number of pollen donors (Nep) within (2.5) than among (3.8) fruits. Due to the higher rp in NP, the effective size within progenies (Ne) was lower (2.69) than PT (3.27). The pollen dispersal pattern was strongly leptokurtic, suggesting long-distance pollen dispersal (mean of 179 m). The results show that both populations can be used for seed collection in environmental reforestation programmes; however, considering that PT is structured in maternal progenies, NP is more suitable for seed collection due to the lower probability of mating among related trees.en
dc.description.affiliationUniversidade Federal Do Alagoas Campus de Engenharias e Ciências Agrárias
dc.description.affiliationInstituto Florestal de São Paulo, C.P. 1322
dc.description.affiliationUniversidade Estadual Paulista Instituto de Biotecnologia Unesp
dc.description.affiliationEmbrapa Tabuleiros Costeiros
dc.description.affiliationCia Energética de São Paulo Usina Porto Primavera
dc.description.affiliationUniversidade Estadual Paulista Faculdade de Engenharia Unesp
dc.description.affiliationUnespUniversidade Estadual Paulista Instituto de Biotecnologia Unesp
dc.description.affiliationUnespUniversidade Estadual Paulista Faculdade de Engenharia Unesp
dc.format.extent9-19
dc.identifierhttp://dx.doi.org/10.1017/S1479262121000022
dc.identifier.citationPlant Genetic Resources: Characterisation and Utilisation, v. 19, n. 1, p. 9-19, 2021.
dc.identifier.doi10.1017/S1479262121000022
dc.identifier.issn1479-263X
dc.identifier.issn1479-2621
dc.identifier.lattes0165348738208319
dc.identifier.orcid0000-0003-4524-954X
dc.identifier.scopus2-s2.0-85101870547
dc.identifier.urihttp://hdl.handle.net/11449/207915
dc.language.isoeng
dc.relation.ispartofPlant Genetic Resources: Characterisation and Utilisation
dc.sourceScopus
dc.subjectconservation genetics
dc.subjectgene flow
dc.subjectmicrosatellite loci
dc.subjectprogeny test
dc.subjecttropical trees
dc.titleEstimating genetic diversity, mating system and pollen dispersal to inform ex situ conservation of the tree Genipa americana L.en
dc.typeArtigo
unesp.author.lattes0165348738208319[6]
unesp.author.orcid0000-0003-4524-954X[6]

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Artigos - Turismo - Rosana