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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
08/10/2008 |
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Data da última atualização: |
05/01/2024 |
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Autoria: |
BARCACIA, G.; MAZZUCATO, A.; BELARDINELLI, A.; PEZZOTTI, M.; LUCRETTI, S.; FALCINELLI, M. |
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Título: |
Inheritance of parental genomes in progenies of Poa pratesis L. from sexual and apomictic genotypes as assessed by RAPD markers and flow cytometry. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Theoretical Applied and Genetics, v. 95, p. 516-524, 1997. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Moving gene(s) responsible for the apomictic trait into crop plants that naturally reproduce through a sexual process would open up new areas in plant breeding and agricultural systems. Kentucky bluegrass (Poa pratensis L.) is one of the most important forage and turf grasses in temperate climates. It reproduces through facultative aposporous parthenogenesis, but the reproductive behaviour ranges naturally from nearly obligate apomixis to complete sexuality. In addition to apomictic reproduction, sexual hybridization may take place. Selfing may also occur, and occasionally reduced egg cells may develop through parthenogenesis generating (poly)haploids. The inheritance of parental genomes was assessed in Kentucky bluegrass progenies by employing RAPD markers in combination with flow cytometry (FCM). Nine progenies from different crosses carried out between completely sexual and highly apomictic genotypes were evaluated in order to probe the reproductive behaviour of the mother plants and to distinguish the different classes of aberrant plants. Not only were maternals and balanced BII hybrids recorded, but so were (poly)triploid BIII hybrids, selfs, and (poly)haploids. The application of these techniques demonstrated that FCM analysis accurately distinguishes the n, 2n, and 3n ploidy levels of progenies, and that RAPD markers unequivocally recognize progenies of apomictic and hybrid origin. The occurrence of aneusomaty was documented in one of the selected sexual genotypes, whose crossed progeny plants manifested two distinct classes of ploidy. The nomenclature BI was adopted to refer to hybrids with a hypodiploid nuclear condition. On the whole, the FCM analysis confirmed most of the RAPD data. The combined evaluation of DNA markers and DNA contents proved to be an efficient screening tool for scoring maternal plants, assessing the genetic origin of aberrant plants, and quantifying the inheritance of parental genomes in Kentucky bluegrass. Hybrid populations from sexual×apomictic matings that segregate for the mode of reproduction represent a valuable basis for attempting to identify molecular markers linked to the apomixis gene(s). MenosAbstract: Moving gene(s) responsible for the apomictic trait into crop plants that naturally reproduce through a sexual process would open up new areas in plant breeding and agricultural systems. Kentucky bluegrass (Poa pratensis L.) is one of the most important forage and turf grasses in temperate climates. It reproduces through facultative aposporous parthenogenesis, but the reproductive behaviour ranges naturally from nearly obligate apomixis to complete sexuality. In addition to apomictic reproduction, sexual hybridization may take place. Selfing may also occur, and occasionally reduced egg cells may develop through parthenogenesis generating (poly)haploids. The inheritance of parental genomes was assessed in Kentucky bluegrass progenies by employing RAPD markers in combination with flow cytometry (FCM). Nine progenies from different crosses carried out between completely sexual and highly apomictic genotypes were evaluated in order to probe the reproductive behaviour of the mother plants and to distinguish the different classes of aberrant plants. Not only were maternals and balanced BII hybrids recorded, but so were (poly)triploid BIII hybrids, selfs, and (poly)haploids. The application of these techniques demonstrated that FCM analysis accurately distinguishes the n, 2n, and 3n ploidy levels of progenies, and that RAPD markers unequivocally recognize progenies of apomictic and hybrid origin. The occurrence of aneusomaty was documented in one of the selected sexual ge... Mostrar Tudo |
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Palavras-Chave: |
Aneusomaty; Apomixia aposporica; Apospory; Genomic DNA markers; Kentucky bluegrass; Nuclear DNA contents; Sexuality. |
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Thesagro: |
Citogenética; DNA; Marcador Molecular; Poa Pratensis. |
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Thesaurus Nal: |
ploidy. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03146naa a2200325 a 4500
001 1533789
005 2024-01-05
008 1997 bl uuuu u00u1 u #d
100 1 $aBARCACIA, G.
245 $aInheritance of parental genomes in progenies of Poa pratesis L. from sexual and apomictic genotypes as assessed by RAPD markers and flow cytometry.$h[electronic resource]
260 $c1997
520 $aAbstract: Moving gene(s) responsible for the apomictic trait into crop plants that naturally reproduce through a sexual process would open up new areas in plant breeding and agricultural systems. Kentucky bluegrass (Poa pratensis L.) is one of the most important forage and turf grasses in temperate climates. It reproduces through facultative aposporous parthenogenesis, but the reproductive behaviour ranges naturally from nearly obligate apomixis to complete sexuality. In addition to apomictic reproduction, sexual hybridization may take place. Selfing may also occur, and occasionally reduced egg cells may develop through parthenogenesis generating (poly)haploids. The inheritance of parental genomes was assessed in Kentucky bluegrass progenies by employing RAPD markers in combination with flow cytometry (FCM). Nine progenies from different crosses carried out between completely sexual and highly apomictic genotypes were evaluated in order to probe the reproductive behaviour of the mother plants and to distinguish the different classes of aberrant plants. Not only were maternals and balanced BII hybrids recorded, but so were (poly)triploid BIII hybrids, selfs, and (poly)haploids. The application of these techniques demonstrated that FCM analysis accurately distinguishes the n, 2n, and 3n ploidy levels of progenies, and that RAPD markers unequivocally recognize progenies of apomictic and hybrid origin. The occurrence of aneusomaty was documented in one of the selected sexual genotypes, whose crossed progeny plants manifested two distinct classes of ploidy. The nomenclature BI was adopted to refer to hybrids with a hypodiploid nuclear condition. On the whole, the FCM analysis confirmed most of the RAPD data. The combined evaluation of DNA markers and DNA contents proved to be an efficient screening tool for scoring maternal plants, assessing the genetic origin of aberrant plants, and quantifying the inheritance of parental genomes in Kentucky bluegrass. Hybrid populations from sexual×apomictic matings that segregate for the mode of reproduction represent a valuable basis for attempting to identify molecular markers linked to the apomixis gene(s).
650 $aploidy
650 $aCitogenética
650 $aDNA
650 $aMarcador Molecular
650 $aPoa Pratensis
653 $aAneusomaty
653 $aApomixia aposporica
653 $aApospory
653 $aGenomic DNA markers
653 $aKentucky bluegrass
653 $aNuclear DNA contents
653 $aSexuality
700 1 $aMAZZUCATO, A.
700 1 $aBELARDINELLI, A.
700 1 $aPEZZOTTI, M.
700 1 $aLUCRETTI, S.
700 1 $aFALCINELLI, M.
773 $tTheoretical Applied and Genetics$gv. 95, p. 516-524, 1997.
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| Registros recuperados : 56 | |
| 21. |  | RAMOS, N. P.; LUCHIARI JUNIOR, A.; BATISTA, E. R.; SANTIAGO, A. D. A cana-de-açúcar e a competição com alimentos, nos estados de Alagoas e Pernambuco: uma análise preliminar. In: STAB: Açúcar, álcool e subprodutos, v.27, n.2, p.32, 2008. Reumos do 9. Congresso Nacional da STAB, 2008, Maceió.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 22. | | RAMOS, N. P.; CARVALHO, C. G. P. de; VIEIRA, H. B.; BATISTA, E. R. Comportamento produtivo do girassol na região de Campinas-SP. In: REUNIÃO NACIONAL DE PESQUISA DO GIRASSOL, 18., SIMPÓSIO NACIONAL SOBRE A CULTURA DO GIRASSOL, 6., 2009. Pelotas. Anais... Pelotas: Embrapa Clima Temperado, 2009. p. 44-50. Editado por Ana Claudia Barneche de Oliveira, Ana Paula Afonso Scheneid da Rosa e Márcia Vizzotto.| Biblioteca(s): Embrapa Clima Temperado. |
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| 23. | | RAMOS, N. P.; CARVALHO, C. G. P.; VIEIRA, H. B.; BATISTA, E. R. Comportamento produtivo do girassol na região de Campinas/SP. In: REUNIÃO NACIONAL DE PESQUISA DO GIRASSOL, 18.; SIMPÓSIO NACIONAL SOBRE A CULTURA DO GIRASSOL, 6., 2009, Pelotas. Anais... Pelotas: Embrapa Clima Temperado, 2009. Editado por Ana Paula Schneid Afonso Rosa, Márcia Vizzotto, Simone Ery Grosskopf. p. 44-50| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente; Embrapa Soja. |
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| 25. | | BATISTA, E. R.; LIGO, M. A. V.; CABRAL, O. M. R. Emissões de gases de efeito estufa, resultantes da queima pré-colheita de cana-de-açúcar var. SP83-2847. In: STAB: Açúcar, álcool e subprodutos, v.27, n.2, p.32, 2008. Reumos do 9. Congresso Nacional da STAB, 2008, Maceió.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 30. | | BATISTA, E. R.; SANTOS, A. P.; SILVA, E. A.; GHINI, R.; BETTIOL, W. Proteínas solúveis totais em folhas de café cultivadas sob diferentes concentrações atmosféricas de CO2 (FACE). In: Summa Phytopathologica, v. 38, supl. resumo 278, 2012. Edição dos resumos do 35º Congresso Paulista de Fitopatologia, 2012, Jaguariúna.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 33. | | RAMOS, N. P.; LUCHIARI JUNIOR, A.; BATISTA, E. R.; FERRAZ, J. M. G.; NEVES, M. C. Seleção de temas e critérios e identificação de pontos críticos para diagnóstico agroambiental da cadeia da cana-de-açúcar. In: WORKSHOP INTERNACIONAL BRASIL-JAPÃO EM BIOCOMBUSTÍVEL, MEIO AMBIENTE E NOVOS PRODUTOS DA BIOMASSA, 5., 2007, Campinas. Caderno de Resumos... Campinas: UNICAMP, 2007. p.75.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 36. | | RAMOS, N. P.; LUCHIARI JUNIOR, A.; BATISTA, E. R.; FERRAZ, J. M. G.; NEVES, M. C. Themes and criteria selection for an agro-environmental diagnosis of sugar cane production chain. In: WORKSHOP INTERNACIONAL BRASIL JAPÃO, 5., 2007, Campinas. Anais:Biocombustível, Meio Ambiente e Novos Produtos da Biomassa. Campinas: UNICAMP, 2007. 7p.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 37. | | CIPRIANI, H. N.; VIEIRA, A. H.; MENDES, A. M.; MARCOLAN, A. L.; CAMELO, J. C.; BATISTA, E. R. do N. Crescimento inicial de um eucalipto clonado sob diferentes adubações em Porto Velho, Rondônia. In: REUNIÃO DE CIÊNCIA DO SOLO DA AMAZÔNIA OCIDENTAL, 2., 2014, Porto Velho. Anais... Porto Velho: Núcleo Regional Amazônia Ocidental da Sociedade Brasileira de Ciência do Solo, 2014. p. 192-197. 5 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia. |
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| 38. | | RAMOS, N. P.; LUCHIARI JUNIOR, A.; BATISTA, E. R.; ANDRADE JÚNIOR, A. S. de; FREITAS NETO, M. de A. Diagnóstico agroambiental rápido dos setores de produção e processamento da cana-de-açucar nos estados do Maranhão e Piauí. In: CONGRESSO NACIONAL DA SOCIEDADE DOS TÉCNICOS AÇUCAREIROS E ALCOOLEIROS DO BRASIL, STAB, 9., 2008, Maceió. Anais... Maceió: STAB, 2008. p. 788-793| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 40. | | RAMOS, N. P.; LUCHIARI JUNIOR, A.; BATISTA, E. R.; ANDRADE JUNIOR, A. S. de; FREITAS NETO, M. de A. Diagnóstico agroambiental rápido dos setores de produção e processamento da cana-de-açúcar nos estados do Maranhão e Piauí. In: STAB: Açúcar, álcool e subprodutos, v.27, n.2, p.34, 2008. Reumos do 9. Congresso Nacional da STAB, 2008, Maceió.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 56 | |
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