Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs

Detalhes bibliográficos
Autor(a) principal: Lanes, Éder C. M.
Data de Publicação: 2016
Outros Autores: Motoike, Sérgio Y., Kuki, Kacilda N., Resende, Marcos D. V., Caixeta, Eveline T.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.1093/jhered/esw038
http://www.locus.ufv.br/handle/123456789/23592
Resumo: Acrocomia aculeata (Arecaceae), a palm endemic to South and Central America, is a potential oil crop. Knowledge of the mating system of this species is limited to its reproductive biology and to studies using molecular markers. The present study analyzed genetic diversity between its developmental stages and determined its prevailing mating system in order to support genetic conservation and breeding programs. We tested 9 microsatellite markers in 27 mother trees (adult plants) and 157 offspring (juvenile plants) from the southeastern region of Brazil. Heterozygosity levels differed between the 2 studied life stages, as indicated by the fixation index of adult and juvenile trees, suggesting that selection against homozygotes occurs during the plant life cycle. The mating system parameters analyzed indicate that A. aculeata is predominantly outcrossing (allogamous). However, its low levels of selfing suggest that there is individual variation with regard to self-incompatibility, which can be a survival strategy in isolated or fragmented habitats. Deviations in variance effective size were detected because of high mating rates among relatives and correlated matings. These findings indicate that the main source of inbreeding results from biparental inbreeding in the population and that the progenies are predominantly composed of full-sibs. The information provided by this study on the ecology and reproduction dynamics of A. aculeata should be useful to both breeding and genetic conservation programs, allowing the development of more precise mathematical models and the estimation of the appropriate number of mother trees for seed collection.
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spelling Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programsAcrocomia aculeataArecaceaeInbreedingMacaubaMacaw palmOutcrossingAcrocomia aculeata (Arecaceae), a palm endemic to South and Central America, is a potential oil crop. Knowledge of the mating system of this species is limited to its reproductive biology and to studies using molecular markers. The present study analyzed genetic diversity between its developmental stages and determined its prevailing mating system in order to support genetic conservation and breeding programs. We tested 9 microsatellite markers in 27 mother trees (adult plants) and 157 offspring (juvenile plants) from the southeastern region of Brazil. Heterozygosity levels differed between the 2 studied life stages, as indicated by the fixation index of adult and juvenile trees, suggesting that selection against homozygotes occurs during the plant life cycle. The mating system parameters analyzed indicate that A. aculeata is predominantly outcrossing (allogamous). However, its low levels of selfing suggest that there is individual variation with regard to self-incompatibility, which can be a survival strategy in isolated or fragmented habitats. Deviations in variance effective size were detected because of high mating rates among relatives and correlated matings. These findings indicate that the main source of inbreeding results from biparental inbreeding in the population and that the progenies are predominantly composed of full-sibs. The information provided by this study on the ecology and reproduction dynamics of A. aculeata should be useful to both breeding and genetic conservation programs, allowing the development of more precise mathematical models and the estimation of the appropriate number of mother trees for seed collection.Journal of Heredity2019-02-19T11:41:47Z2019-02-19T11:41:47Z2016-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf1465-7333http://dx.doi.org/10.1093/jhered/esw038http://www.locus.ufv.br/handle/123456789/23592engVolume 107, Issue 6, Pages 527– 536, November 2016Lanes, Éder C. M.Motoike, Sérgio Y.Kuki, Kacilda N.Resende, Marcos D. V.Caixeta, Eveline T.info:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T06:29:42Zoai:locus.ufv.br:123456789/23592Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T06:29:42LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
title Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
spellingShingle Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
Lanes, Éder C. M.
Acrocomia aculeata
Arecaceae
Inbreeding
Macauba
Macaw palm
Outcrossing
title_short Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
title_full Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
title_fullStr Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
title_full_unstemmed Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
title_sort Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
author Lanes, Éder C. M.
author_facet Lanes, Éder C. M.
Motoike, Sérgio Y.
Kuki, Kacilda N.
Resende, Marcos D. V.
Caixeta, Eveline T.
author_role author
author2 Motoike, Sérgio Y.
Kuki, Kacilda N.
Resende, Marcos D. V.
Caixeta, Eveline T.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Lanes, Éder C. M.
Motoike, Sérgio Y.
Kuki, Kacilda N.
Resende, Marcos D. V.
Caixeta, Eveline T.
dc.subject.por.fl_str_mv Acrocomia aculeata
Arecaceae
Inbreeding
Macauba
Macaw palm
Outcrossing
topic Acrocomia aculeata
Arecaceae
Inbreeding
Macauba
Macaw palm
Outcrossing
description Acrocomia aculeata (Arecaceae), a palm endemic to South and Central America, is a potential oil crop. Knowledge of the mating system of this species is limited to its reproductive biology and to studies using molecular markers. The present study analyzed genetic diversity between its developmental stages and determined its prevailing mating system in order to support genetic conservation and breeding programs. We tested 9 microsatellite markers in 27 mother trees (adult plants) and 157 offspring (juvenile plants) from the southeastern region of Brazil. Heterozygosity levels differed between the 2 studied life stages, as indicated by the fixation index of adult and juvenile trees, suggesting that selection against homozygotes occurs during the plant life cycle. The mating system parameters analyzed indicate that A. aculeata is predominantly outcrossing (allogamous). However, its low levels of selfing suggest that there is individual variation with regard to self-incompatibility, which can be a survival strategy in isolated or fragmented habitats. Deviations in variance effective size were detected because of high mating rates among relatives and correlated matings. These findings indicate that the main source of inbreeding results from biparental inbreeding in the population and that the progenies are predominantly composed of full-sibs. The information provided by this study on the ecology and reproduction dynamics of A. aculeata should be useful to both breeding and genetic conservation programs, allowing the development of more precise mathematical models and the estimation of the appropriate number of mother trees for seed collection.
publishDate 2016
dc.date.none.fl_str_mv 2016-11
2019-02-19T11:41:47Z
2019-02-19T11:41:47Z
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 1465-7333
http://dx.doi.org/10.1093/jhered/esw038
http://www.locus.ufv.br/handle/123456789/23592
identifier_str_mv 1465-7333
url http://dx.doi.org/10.1093/jhered/esw038
http://www.locus.ufv.br/handle/123456789/23592
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Volume 107, Issue 6, Pages 527– 536, November 2016
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv Journal of Heredity
publisher.none.fl_str_mv Journal of Heredity
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
repository.name.fl_str_mv LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv fabiojreis@ufv.br
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