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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
24/01/2014 |
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Data da última atualização: |
09/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PAULA, C. M. P.; TECHIO, V. H.; SOUZA SOBRINHO, F. de; FREITAS, A. S. |
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Afiliação: |
UFLA; UFLA; FAUSTO DE SOUZA SOBRINHO, CNPGL; UFLA. |
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Título: |
Distribution pattern of histone H3 phosphorylation at serine 10 during mitosis and meiosis in Brachiaria species. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of Genetics, v. 92, n. 2, p. 259-266, 2013. |
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DOI: |
https://doi.org/10.1007/s12041-013-0261-z |
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Idioma: |
Inglês |
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Conteúdo: |
Histones are the major eukaryotic DNA-binding proteins. Posttranslational modifications on N-terminal tails of histones that form nucleosomes are often associated with distinct biological functions. Some theories suggest that one of these modifications, the phosphorylation of histone H3 at serine 10 (H3S10ph) plays a role in both chromosome condensation and sister chromatid cohesion. Although histones and some of their modifications are highly conserved, studies have shown that role and distribution of H3S10ph may differ between species. We evaluated the pattern of H3 phosphorylation using immunodetection during mitosis and meiosis in both diploid and tetraploid genotypes of Brachiaria species. Results revealed differences in chromosome distribution of H3S10ph when mitosis and meiosis were compared. Whole chromosomes were phosphorylated during meiosis I, whereas phosphorylation was restricted to the pericentromeric region in both meiosis II and mitosis. There was no variation in phosphorylation patterns between Brachiaria species and diploid and tetraploid genotypes. Regarding spatiotemporal coordination in the Brachiaria species evaluated, H3S10ph is related to maintenance of sister chromatid cohesion during cell divisions. |
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Palavras-Chave: |
Coesão cromátide irmã; Divisão celular; Epigenética; Histona fosforilação; Imunodetecção. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01993naa a2200229 a 4500
001 1977316
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008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s12041-013-0261-z$2DOI
100 1 $aPAULA, C. M. P.
245 $aDistribution pattern of histone H3 phosphorylation at serine 10 during mitosis and meiosis in Brachiaria species.$h[electronic resource]
260 $c2013
520 $aHistones are the major eukaryotic DNA-binding proteins. Posttranslational modifications on N-terminal tails of histones that form nucleosomes are often associated with distinct biological functions. Some theories suggest that one of these modifications, the phosphorylation of histone H3 at serine 10 (H3S10ph) plays a role in both chromosome condensation and sister chromatid cohesion. Although histones and some of their modifications are highly conserved, studies have shown that role and distribution of H3S10ph may differ between species. We evaluated the pattern of H3 phosphorylation using immunodetection during mitosis and meiosis in both diploid and tetraploid genotypes of Brachiaria species. Results revealed differences in chromosome distribution of H3S10ph when mitosis and meiosis were compared. Whole chromosomes were phosphorylated during meiosis I, whereas phosphorylation was restricted to the pericentromeric region in both meiosis II and mitosis. There was no variation in phosphorylation patterns between Brachiaria species and diploid and tetraploid genotypes. Regarding spatiotemporal coordination in the Brachiaria species evaluated, H3S10ph is related to maintenance of sister chromatid cohesion during cell divisions.
653 $aCoesão cromátide irmã
653 $aDivisão celular
653 $aEpigenética
653 $aHistona fosforilação
653 $aImunodetecção
700 1 $aTECHIO, V. H.
700 1 $aSOUZA SOBRINHO, F. de
700 1 $aFREITAS, A. S.
773 $tJournal of Genetics$gv. 92, n. 2, p. 259-266, 2013.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
