Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)

Detalhes bibliográficos
Autor(a) principal: Marques, Isabel
Data de Publicação: 2022
Outros Autores: Draper, David, Riofrio, Lorena, Naranjo, Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/163540
Resumo: This research received national funds through the FCT—Fundação para a Ciência e a Tecnologia, I.P., Portugal through the research unit UIDB/00329/2020 (CE3C), UIDB/00239/2020 (CEF), and under the Scientific Employment Stimulus—Individual Call (CEEC Individual)—2021.01107.CEECIND/CP1689/CT0001 (IM).
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spelling Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)deforestationEcuadorinbreedinggenetic diversityneotropical forestsOcoteaThis research received national funds through the FCT—Fundação para a Ciência e a Tecnologia, I.P., Portugal through the research unit UIDB/00329/2020 (CE3C), UIDB/00239/2020 (CEF), and under the Scientific Employment Stimulus—Individual Call (CEEC Individual)—2021.01107.CEECIND/CP1689/CT0001 (IM).The diversity of genetic resources is essential to cope with environmental changes. However, despite forests play a crucial role in mitigating changes, genetic knowledge has scarcely been used for forest conservation. In this study, we used nuclear microsatellites to understand the patterns of genetic diversity and population genetic structure in Ocotea rotundata van der Werff (Lauraceae), an endemic Ecuadorian tree, highly affected by habitat changes and fragmentation. Our results show high levels of genetic diversity, except in one population. The level of genetic differentiation between populations was low and genetic clusters showed no apparent spatial pattern. In fact, a high degree of genetic admixture was found between most populations. Migration rates were asymmetric but overall high, except in one population, where outgoing gene dispersal was limited. Nevertheless, allelic fixation values suggested a general deficit in heterozygotes, probably due to an increase in the levels of mating between close relatives. Although long-lived organisms, such as trees, can often accumulate a surprising amount of genetic diversity, the results found here could be an early sign of a decline in the diversity of O. rotundata. These findings provide baseline information on genetic resources to support future restoration programs to mitigate the impacts of changes in O. rotundata populations.NOVA School of Business and Economics (NOVA SBE)RUNMarques, IsabelDraper, DavidRiofrio, LorenaNaranjo, Carlos2024-02-14T22:46:49Z2022-112022-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/163540eng1999-4907PURE: 50137148https://doi.org/10.3390/f13111940info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:47:10Zoai:run.unl.pt:10362/163540Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:59:27.087517Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)
title Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)
spellingShingle Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)
Marques, Isabel
deforestation
Ecuador
inbreeding
genetic diversity
neotropical forests
Ocotea
title_short Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)
title_full Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)
title_fullStr Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)
title_full_unstemmed Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)
title_sort Early signs of the effects of forest fragmentation on the genetic diversity and structure of the threatened ecuadorian tree Ocotea rotundata (Lauraceae)
author Marques, Isabel
author_facet Marques, Isabel
Draper, David
Riofrio, Lorena
Naranjo, Carlos
author_role author
author2 Draper, David
Riofrio, Lorena
Naranjo, Carlos
author2_role author
author
author
dc.contributor.none.fl_str_mv NOVA School of Business and Economics (NOVA SBE)
RUN
dc.contributor.author.fl_str_mv Marques, Isabel
Draper, David
Riofrio, Lorena
Naranjo, Carlos
dc.subject.por.fl_str_mv deforestation
Ecuador
inbreeding
genetic diversity
neotropical forests
Ocotea
topic deforestation
Ecuador
inbreeding
genetic diversity
neotropical forests
Ocotea
description This research received national funds through the FCT—Fundação para a Ciência e a Tecnologia, I.P., Portugal through the research unit UIDB/00329/2020 (CE3C), UIDB/00239/2020 (CEF), and under the Scientific Employment Stimulus—Individual Call (CEEC Individual)—2021.01107.CEECIND/CP1689/CT0001 (IM).
publishDate 2022
dc.date.none.fl_str_mv 2022-11
2022-11-01T00:00:00Z
2024-02-14T22:46:49Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/163540
url http://hdl.handle.net/10362/163540
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1999-4907
PURE: 50137148
https://doi.org/10.3390/f13111940
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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