Mating system and genetic composition of the Macaw Palm (Acrocomia aculeata): implications for breeding and genetic conservation programs
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
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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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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1817559841827192832 |