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Registro Completo |
Biblioteca(s): |
Embrapa Café; Embrapa Florestas. |
Data corrente: |
14/10/2016 |
Data da última atualização: |
18/10/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LANES, E. C. M.; MOTOIKE, S. Y.; KUKI, K. N.; RESENDE, M. D. V. de; CAIXETA, E. T. |
Afiliação: |
Éder C. M. Lanes, UFV; Sérgio Y. Motoike, UFV; Kacilda N. Kuki, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; Eveline T. Caixeta, UFV. |
Título: |
Mating system and genetic composition of the macaw palm (Acrocomia aculeata): implications for breeding and genetic conservation programs. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Journal of Heredity, v. 107, n. 6, p. 527-536, Nov. 2016. |
DOI: |
10.1093/jhered/esw038 |
Idioma: |
Inglês |
Conteúdo: |
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. MenosAcrocomia 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... Mostrar Tudo |
Palavras-Chave: |
Kinship analysis; Macaw palm; Reproductive strategies. |
Thesagro: |
Acrocomia aculeata; Espécie nativa; Macaúba. |
Thesaurus Nal: |
Arecaceae; Inbreeding; Outcrossing. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 02552naa a2200289 a 4500 001 2054695 005 2016-10-18 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1093/jhered/esw038$2DOI 100 1 $aLANES, E. C. M. 245 $aMating system and genetic composition of the macaw palm (Acrocomia aculeata)$bimplications for breeding and genetic conservation programs.$h[electronic resource] 260 $c2016 520 $aAcrocomia 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. 650 $aArecaceae 650 $aInbreeding 650 $aOutcrossing 650 $aAcrocomia aculeata 650 $aEspécie nativa 650 $aMacaúba 653 $aKinship analysis 653 $aMacaw palm 653 $aReproductive strategies 700 1 $aMOTOIKE, S. Y. 700 1 $aKUKI, K. N. 700 1 $aRESENDE, M. D. V. de 700 1 $aCAIXETA, E. T. 773 $tJournal of Heredity$gv. 107, n. 6, p. 527-536, Nov. 2016.
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Embrapa Florestas (CNPF) |
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Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
01/12/2017 |
Data da última atualização: |
01/12/2017 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
AGUIAR, J.; PACHEKOSKI, W. M.; DECOL, M.; BECKER, D.; MATTOSO, L. H. C.; MARCONCINI, J. M. |
Afiliação: |
LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA; JOSE MANOEL MARCONCINI, CNPDIA. |
Título: |
Localização seletiva de nanoplateletes de grafeno na blenda poli (ácido láctico)/poli (E-caprolactona). |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais ... São Carlos: Embrapa Instrumentação, 2017. p. 145-148. Editores: Caue Ribeiro de Oliveira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Marcelo Porto Bemquerer, Maria Alice Martins, Odílio Benedito Garrido de Assis. |
ISSN: |
2175-8395 |
Idioma: |
Português |
Palavras-Chave: |
Nanoplateletes de grafeno; Poli (&-caprolactona); Poli (ácido láctico). |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/167907/1/P-Localizacao-Seletiva-de-Nanoplateletes-de-Grafeno-....pdf
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Marc: |
LEADER 00947nam a2200205 a 4500 001 2081183 005 2017-12-01 008 2017 bl uuuu u00u1 u #d 022 $a2175-8395 100 1 $aAGUIAR, J. 245 $aLocalização seletiva de nanoplateletes de grafeno na blenda poli (ácido láctico)/poli (E-caprolactona).$h[electronic resource] 260 $aIn: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais ... São Carlos: Embrapa Instrumentação, 2017. p. 145-148. Editores: Caue Ribeiro de Oliveira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Marcelo Porto Bemquerer, Maria Alice Martins, Odílio Benedito Garrido de Assis.$c2017 653 $aNanoplateletes de grafeno 653 $aPoli (&-caprolactona) 653 $aPoli (ácido láctico) 700 1 $aPACHEKOSKI, W. M. 700 1 $aDECOL, M. 700 1 $aBECKER, D. 700 1 $aMATTOSO, L. H. C. 700 1 $aMARCONCINI, J. M.
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