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Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
13/04/2010 |
Data da última atualização: |
20/04/2010 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
LIMA, M. F.; MELO, P. E. de; PEREIRA, A. da S. |
Afiliação: |
Mirtes Freitas Lima, Embrapa Hortaliças; Paulo Eduardo de Melo, Embrapa Hortaliças; Arione da Silva Pereira, Embrapa Clima Temperado. |
Título: |
Estimativa da dosagem alélica do gene Ry em cruzamentos entre clones de batata imunes e suscetíveis ao PVY. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari. O melhoramento e os novos cenários da agricultura: anais. Vitória: Incaper, 2009. |
Idioma: |
Português |
Palavras-Chave: |
Alelo; PVY. |
Thesagro: |
Batata; Clone; Resistência; Solanum Tuberosum; Vírus. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00709naa a2200217 a 4500 001 1783088 005 2010-04-20 008 2009 bl uuuu u00u1 u #d 100 1 $aLIMA, M. F. 245 $aEstimativa da dosagem alélica do gene Ry em cruzamentos entre clones de batata imunes e suscetíveis ao PVY. 260 $c2009 650 $aBatata 650 $aClone 650 $aResistência 650 $aSolanum Tuberosum 650 $aVírus 653 $aAlelo 653 $aPVY 700 1 $aMELO, P. E. de 700 1 $aPEREIRA, A. da S. 773 $tIn: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari. O melhoramento e os novos cenários da agricultura: anais. Vitória: Incaper, 2009.
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Embrapa Hortaliças (CNPH) |
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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 |
Circulação/Nível: |
A - 2 |
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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