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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
17/08/2021 |
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Data da última atualização: |
19/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REIS, G. B.; MESQUITA, A. T.; ANDRADE-VIEIRA, L. F.; AZEVEDO, A. L. S.; DAVIDE, L. C. |
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Afiliação: |
Universidade Federal de Lavras; Universidade Estadual de Campinas; Universidade Federal de Lavras; ANA LUISA SOUSA AZEVEDO, CNPGL; Universidade Federal de Lavras. |
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Título: |
Somatic cell alterations in interespecific hybrids of Cenchrus purpureum (Schumach.) and Cenchrus americanus (L.) Morrone by genomic in situ hybridization. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Cytology and Genetics, v. 55, n. 2, p. 194-198, 2021. |
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DOI: |
http://doi.org/10.3103/S0095452721020146 |
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Idioma: |
Inglês |
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Conteúdo: |
The cross between Cenchrus purpureum (Schumach.) (Napier grass) and Cenchrus americanus (L.) Morrone (pearl millet) produce triploid and sterile hybrids. Chromosome doubling used to restore the fertility of the triploid hybrids produces hexaploid material that are mixoploid, but with desirable forage characteristics. Even backcrosses result in tetraploid and pentaploid mixoploid materials. The aim of this study was to compare the frequency of chromosome abnormalities in somatic cells of hybrids originated by backcross to compare with those found in synthetic hexaploid hybrids finding if there is a most stable material. To identify the abnormalities it was used the genomic in situ hybridization. The cell cycle analysis revealed similar frequencies and types of alterations both in the hexaploid and in hybrids originating from backcrosses. Chromosome elimination was reported in all types of hybrids. It was found micronuclei, not-oriented chromosomes at metaphase, lost chromosome at anaphase/telophase and bridges at anaphase involving chromosomes from Napier grass and pearl millet in all hybrids analyzed independently of ploidy level. |
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Palavras-Chave: |
Chromosome alterations; Micronucleus; Napier grass; Pearl millet. |
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Thesagro: |
Capim; Cromossoma; Milheto. |
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Thesaurus Nal: |
Chromosome elimination; Millets. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02059naa a2200289 a 4500
001 2133649
005 2021-08-19
008 2021 bl uuuu u00u1 u #d
024 7 $ahttp://doi.org/10.3103/S0095452721020146$2DOI
100 1 $aREIS, G. B.
245 $aSomatic cell alterations in interespecific hybrids of Cenchrus purpureum (Schumach.) and Cenchrus americanus (L.) Morrone by genomic in situ hybridization.$h[electronic resource]
260 $c2021
520 $aThe cross between Cenchrus purpureum (Schumach.) (Napier grass) and Cenchrus americanus (L.) Morrone (pearl millet) produce triploid and sterile hybrids. Chromosome doubling used to restore the fertility of the triploid hybrids produces hexaploid material that are mixoploid, but with desirable forage characteristics. Even backcrosses result in tetraploid and pentaploid mixoploid materials. The aim of this study was to compare the frequency of chromosome abnormalities in somatic cells of hybrids originated by backcross to compare with those found in synthetic hexaploid hybrids finding if there is a most stable material. To identify the abnormalities it was used the genomic in situ hybridization. The cell cycle analysis revealed similar frequencies and types of alterations both in the hexaploid and in hybrids originating from backcrosses. Chromosome elimination was reported in all types of hybrids. It was found micronuclei, not-oriented chromosomes at metaphase, lost chromosome at anaphase/telophase and bridges at anaphase involving chromosomes from Napier grass and pearl millet in all hybrids analyzed independently of ploidy level.
650 $aChromosome elimination
650 $aMillets
650 $aCapim
650 $aCromossoma
650 $aMilheto
653 $aChromosome alterations
653 $aMicronucleus
653 $aNapier grass
653 $aPearl millet
700 1 $aMESQUITA, A. T.
700 1 $aANDRADE-VIEIRA, L. F.
700 1 $aAZEVEDO, A. L. S.
700 1 $aDAVIDE, L. C.
773 $tCytology and Genetics$gv. 55, n. 2, p. 194-198, 2021.
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Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 6 | |
| 2. |  | COSTA SANTOS, F. M.; REIS, G. B.; ANDRADE VIEIRA, L. F.; DAVIDE, L. C.; PEREIRA, A. V. Distribuição dos genomas de capim-elefante e milheto (Pennisetum sp. Schum., Poaceae) em híbrido interespecifico. In: CONGRESSO BRASILEIRO DE GENÉTICA, 56., 2010, Guarujá. Resumos... Ribeirão Preto: Sociedade Brasileira de Genética, 2010.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 4. | | REIS, G. B. dos; MESQUITA, A. T.; TORRES, G. A.; ANDRADE-VIEIRA, L. F.; PEREIRA, A. V.; DAVIDE, L. C. Genomic homeology between Pennisetum purpureum and Pennisetum glaucum (Poaceae). Comparative Cytogenetics, v. 8, n. 3, p. 199-209, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | REIS, G. B.; ANDRADE VIEIRA, L. F.; DAVIDE, L. C.; TORRES, G. A.; OLIVEIRA, A. R.; BRASILEIRO-VIDAL, A.C.; PEREIRA, A. V. Estudo da eliminação cromossômica em híbridos de capim-elefante e milheto(Pennisetum sp. Schum., Poaceae) através da hibridização in situ genômica. In: CONGRESSO BRASILEIRO DE GENÉTICA, 56., 2010, Guarujá. Resumos... Ribeirão Preto: Sociedade Brasileira de Genética, 2010.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 6 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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