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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
28/12/2018 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MORAIS, L. C.; SOUZA SOBRINHO, F. de; TECHIO, V. H. |
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Afiliação: |
L. C. Morais, UFLA; FAUSTO DE SOUZA SOBRINHO, CNPGL; V. H. Techio, UFLA. |
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Título: |
Comparative microsporogenesis between diploid and tetraploid plants of Brachiaria ruziziensis and their progenies. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
South African Journal of Botany, v. 119, p. 258-264, 2018. |
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DOI: |
10.1016/j.sajb.2018.09.018 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Microsporogenesis studies in Brachiaria have been concentrated in the species B. ruziziensis, B. decumbens and B.brizantha and hybrids because they have great importance as forage. Besides the sexual behavior, B. ruziziensis is among a minority of Brachiaria diploid species (2n = 2 × = 18), while most are tetraploid (2n= 4 × = 36) and apomictic. Brachiaria ruziziensis is used in intra and interspecific crossbreedings. For the success of interspecific hybridization, artificial tetraploidization of B. ruziziensis is necessary. The aim of this study was to compare the microsporogenesis in diploid and synthetic tetraploid B. ruziziensis plants and their respective progenies. The slides were prepared by squash technique and stained with 1% propionic carmine for meiocyte analysis and Alexander's stain for pollen viability. Abnormalities were found in all phases of meiosis in the families of the diploid and tetraploid plants and, in general, the rate was considered low, with the percentage varying according to the genotypes. The diploid family was considered more stable. For both families, there is a tendency to reduce the total frequency of abnormalities in the progenies compared to the mother plants. This response indicates that combinations of random crosses or self-fertilization among plants with the same ploidy level were favorable. For the diploid accessions, the pollen viability index was high, reaching up to 88.3%, whereas the tetraploidized plants presented lower values, reaching a maximum of 61.1%. The results will be of interest to researchers involved in tropical forage breeding or conducting intraspecific crosses, since the occurrence of regular meiosis in progenies ensures the formation of viable pollen grains. MenosAbstract Microsporogenesis studies in Brachiaria have been concentrated in the species B. ruziziensis, B. decumbens and B.brizantha and hybrids because they have great importance as forage. Besides the sexual behavior, B. ruziziensis is among a minority of Brachiaria diploid species (2n = 2 × = 18), while most are tetraploid (2n= 4 × = 36) and apomictic. Brachiaria ruziziensis is used in intra and interspecific crossbreedings. For the success of interspecific hybridization, artificial tetraploidization of B. ruziziensis is necessary. The aim of this study was to compare the microsporogenesis in diploid and synthetic tetraploid B. ruziziensis plants and their respective progenies. The slides were prepared by squash technique and stained with 1% propionic carmine for meiocyte analysis and Alexander's stain for pollen viability. Abnormalities were found in all phases of meiosis in the families of the diploid and tetraploid plants and, in general, the rate was considered low, with the percentage varying according to the genotypes. The diploid family was considered more stable. For both families, there is a tendency to reduce the total frequency of abnormalities in the progenies compared to the mother plants. This response indicates that combinations of random crosses or self-fertilization among plants with the same ploidy level were favorable. For the diploid accessions, the pollen viability index was high, reaching up to 88.3%, whereas ... Mostrar Tudo |
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Palavras-Chave: |
Meiotic behavior; Pollen viability. |
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Thesaurus Nal: |
Pollen; Urochloa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02449naa a2200205 a 4500
001 2102602
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1016/j.sajb.2018.09.018$2DOI
100 1 $aMORAIS, L. C.
245 $aComparative microsporogenesis between diploid and tetraploid plants of Brachiaria ruziziensis and their progenies.$h[electronic resource]
260 $c2018
520 $aAbstract Microsporogenesis studies in Brachiaria have been concentrated in the species B. ruziziensis, B. decumbens and B.brizantha and hybrids because they have great importance as forage. Besides the sexual behavior, B. ruziziensis is among a minority of Brachiaria diploid species (2n = 2 × = 18), while most are tetraploid (2n= 4 × = 36) and apomictic. Brachiaria ruziziensis is used in intra and interspecific crossbreedings. For the success of interspecific hybridization, artificial tetraploidization of B. ruziziensis is necessary. The aim of this study was to compare the microsporogenesis in diploid and synthetic tetraploid B. ruziziensis plants and their respective progenies. The slides were prepared by squash technique and stained with 1% propionic carmine for meiocyte analysis and Alexander's stain for pollen viability. Abnormalities were found in all phases of meiosis in the families of the diploid and tetraploid plants and, in general, the rate was considered low, with the percentage varying according to the genotypes. The diploid family was considered more stable. For both families, there is a tendency to reduce the total frequency of abnormalities in the progenies compared to the mother plants. This response indicates that combinations of random crosses or self-fertilization among plants with the same ploidy level were favorable. For the diploid accessions, the pollen viability index was high, reaching up to 88.3%, whereas the tetraploidized plants presented lower values, reaching a maximum of 61.1%. The results will be of interest to researchers involved in tropical forage breeding or conducting intraspecific crosses, since the occurrence of regular meiosis in progenies ensures the formation of viable pollen grains.
650 $aPollen
650 $aUrochloa
653 $aMeiotic behavior
653 $aPollen viability
700 1 $aSOUZA SOBRINHO, F. de
700 1 $aTECHIO, V. H.
773 $tSouth African Journal of Botany$gv. 119, p. 258-264, 2018.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 57 | |
| 1. |  | RIBEIRO, A. S. L.; CAMPOS, L. T. de P.; DAMASO, M. C. T.; NORONHA, E. F. Avaliação de estratégias de expressão em Escherichia coli para produção de amilase de Paenibacillus barengoltzii. In: ENCONTRO DE PESQUISA E INOVAÇÃO DA EMBRAPA AGROENERGIA, 7., 2023, Brasília, DF. Anais... Brasília, DF: Embrapa, 2023. p. 83-87.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 2. | | TAVARES, P.; SILVA, M. R. S. S.; KRUGER, R. H.; NORONHA, E. F.; QUIRINO, B. F. Accessing lipases from soil metagenoma and their application for microbial biofuel production. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 26., 2011, Foz do Iguaçu, PR. Anais... São Paulo: Sociedade Brasileira de Microbiologia, 2011. Não paginado.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 3. | | TAVARES, P.; BERGMANN, J.; KRUGER, R. H.; NORONHA, E.; QUIRINO, B. F. Accessing lipases from soil metagenome as an aid for biofuel production. In: BRAZILIAN BIOENERGY SCIENCE AND TECHNOLOGY CONFERENCE - BBEST, 1., 2011, Campos do Jordão, SP. [Anais...]. São Paulo: FAPESP, 2011. Não paginado.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 5. | | MURAD, A. M.; NORONHA, E. F.; MEHTA, A.; LAUMANN, R. A.; FRANCO, O. L. Beauveria bassiana proteomics: understanding fungi-host mechanisms for development of novel strategies on Callosobruchus maculatus biocontrol. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUÍMICA E BIOLOGIA MOLECULAR, 35., 2006, Águas de Lindóia, SP. Programas e resumos... São Paulo: Sociedade Brasileira de Bioquímica e Biologia Molecular, 2006. Não paginado.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 9. | | PELEGRINI, P. B.; MOREIRA, I. C. A.; MUNIZ, M. A. R.; BLOCH JUNIOR, C.; NORONHA, E. F.; FRANCO, O. L. Biochemical characterization of novel peptides from passion fruit seeds (Passiflora edulis) active against filamentous fungi. In: REUNIÃO ANUAL: SOCIEDADE BRASILEIRA DE BIOQUÍMICA E BIOLOGIA MOLECULAR, 34., 2005, Águas de Lindóia. Programas e resumos... São Paulo: Sociedade Brasileira de Bioquímica e Biologia Molecular, 2005.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 10. | | PEREIRA, J. L.; FRANCO, O. L.; PAULINO, L.; PAPPAS, G. J.; BLOCH JUNIOR, C.; GRATTAPAGLIA, D.; NORONHA, E. F. Comparative xylem proteome of Eucalyptus grandis and Eucalyptus globulus. In: ANNUAL MEETING OF SBBQ, 37.; CONGRESS OF THE PABMB, 11., 2008, Águas de Lindóia, SP. Abstracts... Águas de Lindóia: SBBq, 2008. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 13. | | SILVA, D. P.; CASADO FILHO, E. L.; FARIAS, L. R.; BLOCH JÚNIOR, C.; NORONHA, E. F.; FRANCO, O. L. Inibidores ativos contra α-amilases de Callosobruchus maculatus provenientes de sementes de sucupira branca Pterodon pubescens. In: ENCONTRO DA SOCIEDADE BRASILEIRA DE MELHORAMENTO DE PLANTAS REGIONAL DF, 1., 2005, Brasília, DF. [Anais...]. Brasília: Embrapa Recursos Genéticos e Biotecnologia, 2005. p. 110. (Embrapa Recursos Genéticos e Biotecnologia. Documentos, 144).| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 14. | | PEREIRA, J. L.; SILVA, T. A. P.; QUIRINO, B. F.; FELIX, C. R.; ULHOA, C. J.; NORONHA, E. F. Production and partial purification of an extracellular protein with antibacterial activity produced by Trichoderma harzianum. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUÍMICA E BIOLOGIA MOLECULAR ? SBBq, 39.; LATIN AMERICAN SYMPOSIUM ON THE MOLECULAR MECHANISMS OF SKELETAL MINERALIZATION, 1., 2010, Foz do Iguaçu, PR. Resumos... São Paulo: SBBq, 2010. Não paginado.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 16. | | CORREIA, V. A. B.; ALMEIDA, A. S. S. A.; LEMOS, T.; QUIRINO, B. F.; KRÜGER, R. H.; NORONHA, E. F. Seleção e caracterização molecular de uma lipase a partir do metagenoma de solo do Cerrado. In: WORKSHOP EM CIÊNCIAS GENÔMICAS E BIOTECNOLOGIA, 1., 2009, Brasília, DF. [Anais...]. Brasília, DF: [UCB], 2009. Não paginado.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Agroenergia. |
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| 17. | | CORREIA, V. A. B.; ALMEIDA, A. S. S. A.; QUIRINO, B. F.; KRUGER, R. H.; NORONHA, E. F. Screening and molecular characterization of a lipase metagenome soil-derived. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUÍMICA E BIOLOGIA MOLECULAR – SBBq, 39.; LATIN AMERICAN SYMPOSIUM ON THE MOLECULAR MECHANISMS OF SKELETAL MINERALIZATION, 1., 2010, Foz do Iguaçu, PR. Resumos... São Paulo: SBBq, 2010. Não paginado. Disponível em: < http://www.sbbq.org.br/2010/cdrom/busca.htm?query=quirino%2C+b.+f. >. Acesso em: 16 ago. 2010.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 18. | | CÂNDIDO, E. S.; PEREIRA, J. L.; QUEZADO-DUVAL, A. M.; NORONHA, E. F.; KRÜGER, R. H.; QUIRINO, B. F. Xanthomonas gardneri exoenzymatic activity towards plant tissue. World Journal of Microbiology & Technology, Oxford, v. 24, p. 163-170, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Hortaliças. |
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| 19. | | CÂNDIDO, E. S.; SILVA, R. B.; AQUINO, E. N.; NORONHA, E. F.; FRANCO, O. L.; KRÜGER, R. H.; FONTES, W.; QUIRINO, B. F. Analysis of the Arabidopsis thaliana - Xanthomonas campestris pv. campestris pathosystem using proteomics tools. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 28., 2008; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 12., 2008; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 10., 2008; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 7., 2008, Londrina. FertBio 2008: desafios para o uso do solo com eficiência e qualidade ambiental: anais. Londrina: Embrapa Soja: SBCS: IAPAR: UEL, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 20. | | CASADO-FILHO, E.; ROCHA, T. L.; EVARISTO, R. G. S.; NORONHA, E. F.; GROSSI-de-SÁ, M. F.; FRANCO, O. L. Análise comparativa de diferentes fases de desenvolvimento de Meloidogyne incognita via eletroforese bidimensional. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 10., 2005, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2005. p. 53.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 57 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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