Marker-based pedigree reconstruction reveals limited diversity within commercial Eucalyptus benthamii breeding populations in Brazil

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorACT-
Autor(es): dc.contributorWestRock-
Autor(es): dc.contributorKlabin S.A.-
Autor(es): dc.creatorFerreira, Filipe Manoel-
Autor(es): dc.creatorGrattapaglia, Dario-
Autor(es): dc.creatorBush, David-
Autor(es): dc.creatorAndrejow, Gisela Maria Pedrassani-
Autor(es): dc.creatorEstopa, Regiane Abjaud-
Autor(es): dc.creatorTambarussi, Evandro Vagner-
Data de aceite: dc.date.accessioned2025-08-21T19:11:25Z-
Data de disponibilização: dc.date.available2025-08-21T19:11:25Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11295-024-01667-5-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/308129-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/308129-
Descrição: dc.descriptionDespite extensive introductions of Eucalyptus germplasm to Brazil in the last 50 years, relatively little is known about the genetic diversity within current breeding programs, particularly for non-mainstream species. A prime example is Eucalyptus benthamii, a subtropical species with a restricted natural range, endangered due to anthropogenic population fragmentation. We used microsatellite markers to reconstruct the pedigrees and estimate diversity within the two most representative pools of E. benthamii germplasm managed in separate, commercial Brazilian breeding populations. The analysis, together with evidence from Australian Tree Seed Centre (ATSC), historical germplasm export data confirmed that the genetic diversity within the two populations is modest. In the two breeding populations, the estimated status number was in the range of 8.5–22.0 per population considering marker-based co-ancestry. Extensive close relatedness and family structure were identified within and across the two populations, confirming that they share a high proportion of founder ancestors. This is likely a result of the narrow genetic base of the initial introductions and subsequent directional selection and breeding. With the increasing importance of E. benthamii in Brazilian plantation forestry, and as further breeding will likely reduce the status number, our study highlights the need for infusions to augment the existing genetic diversity. Complementary to sourcing infusions, implementing breeding strategies that take advantage of the marker-based information reported in this study to carefully manage the pedigree should help to minimise inbreeding. Exchanging unrelated individuals between the two Brazilian breeding populations would also be advantageous.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionPlant Production Department College of Agriculture São Paulo State University, Av. Universitária, 3780, SP-
Descrição: dc.descriptionPlant Genetics Laboratory EMBRAPA Genetic Resources and Biotechnology, DF-
Descrição: dc.descriptionCSIRO Australian Tree Seed Centre ACT, GPO Box 1700-
Descrição: dc.descriptionForestry R & amp;D WestRock, Rigesa Avenue, 2400, SC-
Descrição: dc.descriptionForestry R & amp;D Klabin S.A., Brasil Avenue, PR-
Descrição: dc.descriptionPlant Production Department College of Agriculture São Paulo State University, Av. Universitária, 3780, SP-
Descrição: dc.descriptionFAPESP: 2023/04881-3-
Descrição: dc.descriptionCNPq: 309443/2023-7-
Descrição: dc.descriptionCNPq: 407175/2021-0-
Idioma: dc.languageen-
Relação: dc.relationTree Genetics and Genomes-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGenetic diversity-
Palavras-chave: dc.subjectMicrosatellites-
Palavras-chave: dc.subjectMolecular breeding-
Título: dc.titleMarker-based pedigree reconstruction reveals limited diversity within commercial Eucalyptus benthamii breeding populations in Brazil-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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