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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
26/11/2009 |
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Data da última atualização: |
15/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MEO, S. C.; FERREIRA, C. R.; PERECIN, F.; SARAIVA, N. Z.; TETZNER, T. A. D.; YAMAZAKI, W.; LEA, C. L. V.; MEIRELLES, F. V.; GARCIA, J. M. |
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Afiliação: |
SIMONE CRISTINA MEO NICIURA, CPPSE; CHRISTINA RAMIRES FERREIRA, USP; FELIPE PERECIN, USP; NAIARA ZOCCAL SARAIVA, UNESP; TATIANE ALMEIDA DRUMMOND TETZNER, UNESP; WALT YAMAZAKI, UNESP; CLÁUDIA LIMA VERDE LEA, USP; FLÁVIO VIEIRA MEIRELLES, USP; JOAQUIM MANSANO GARCIA, UNESP. |
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Título: |
Karyoplast exchange between strontium- and 6-DMAP-parthenogenetically activated zygotes of cattle. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Animal Reproduction Science, v. 116, n. 3-4, p. 381-385, dec. 2009. |
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DOI: |
https://doi.org/10.1016/j.anireprosci.2009.02.020 |
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Idioma: |
Inglês |
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Conteúdo: |
Ooplasmic factors drive nuclear organization after fertilization and are also important for re-programming in nuclear transfer procedures, in which artificial activation is essential for reconstructed embryos to progress in development. The present research evaluated the effect of pronuclear transfer (PT) between zygotes parthenogenetically activated with ionomycin followed by strontium (S) or 6-DMAP (D) on early embryonic development. PT was performed in the same zygote to obtain embryos in control groups (S-PT and D-PT) and between zygotes activated with S and D to achieve embryos with differentially activated cytoplasm (C) and nucleus (N) (SCDN and DCSN). PT procedure did not affect cleavage and blastocyst rates, respectively, in PT control groups compared to non-manipulated control (S-PT: 73.6% and 7.3% compared with S-Control: 77.9% and 7.8%; and D-PT: 73.3% and 31.7% compared with D-Control: 83.1% and 41.5%). Cleavage, eight-cell, and blastocyst rates, respectively, were similar between SCDN (76.5%, 36.4%, and 6.8%) and DCSN (69.5%, 25.0%, and 4.9%) embryos. Developmental rates in SCDN were similar to S-PT, but inferior to D-PT. Developmental arrest up to eight-cell stage was greater in SCDN and DCSN than in S-PT and D-PT. In conclusion, karyoplast exchange between parthenogenetic zygotes activated with strontium and 6-DMAP can lead to nuclear?cytoplasmic incompatibilities and affect embryonic development to the eight-cell and blastocyst stages. |
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Palavras-Chave: |
Artificial activation; Bovine; Embryonic development; Pronuclear transfer. |
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Thesaurus Nal: |
beef cattle. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02365naa a2200289 a 4500
001 1576277
005 2023-03-15
008 2009 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.anireprosci.2009.02.020$2DOI
100 1 $aMEO, S. C.
245 $aKaryoplast exchange between strontium- and 6-DMAP-parthenogenetically activated zygotes of cattle.$h[electronic resource]
260 $c2009
520 $aOoplasmic factors drive nuclear organization after fertilization and are also important for re-programming in nuclear transfer procedures, in which artificial activation is essential for reconstructed embryos to progress in development. The present research evaluated the effect of pronuclear transfer (PT) between zygotes parthenogenetically activated with ionomycin followed by strontium (S) or 6-DMAP (D) on early embryonic development. PT was performed in the same zygote to obtain embryos in control groups (S-PT and D-PT) and between zygotes activated with S and D to achieve embryos with differentially activated cytoplasm (C) and nucleus (N) (SCDN and DCSN). PT procedure did not affect cleavage and blastocyst rates, respectively, in PT control groups compared to non-manipulated control (S-PT: 73.6% and 7.3% compared with S-Control: 77.9% and 7.8%; and D-PT: 73.3% and 31.7% compared with D-Control: 83.1% and 41.5%). Cleavage, eight-cell, and blastocyst rates, respectively, were similar between SCDN (76.5%, 36.4%, and 6.8%) and DCSN (69.5%, 25.0%, and 4.9%) embryos. Developmental rates in SCDN were similar to S-PT, but inferior to D-PT. Developmental arrest up to eight-cell stage was greater in SCDN and DCSN than in S-PT and D-PT. In conclusion, karyoplast exchange between parthenogenetic zygotes activated with strontium and 6-DMAP can lead to nuclear?cytoplasmic incompatibilities and affect embryonic development to the eight-cell and blastocyst stages.
650 $abeef cattle
653 $aArtificial activation
653 $aBovine
653 $aEmbryonic development
653 $aPronuclear transfer
700 1 $aFERREIRA, C. R.
700 1 $aPERECIN, F.
700 1 $aSARAIVA, N. Z.
700 1 $aTETZNER, T. A. D.
700 1 $aYAMAZAKI, W.
700 1 $aLEA, C. L. V.
700 1 $aMEIRELLES, F. V.
700 1 $aGARCIA, J. M.
773 $tAnimal Reproduction Science$gv. 116, n. 3-4, p. 381-385, dec. 2009.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Tipo/Formato |
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Registro |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Unidades Centrais. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
29/06/1993 |
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Data da última atualização: |
05/05/2022 |
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Autoria: |
LONGO, R. M. J.; MACHADO, U. D. |
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Afiliação: |
ROSE MARY JULIANO LONGO, CPAC; UBALDINO DANTS MACHADO, DID. |
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Título: |
Characterization of databases in the agricultura sciences. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Journal of the American Society for Information Science, v. 32, n. 2, p. 83-91, mar. 1981. |
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Páginas: |
p. 83-92 |
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Idioma: |
Inglês |
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Conteúdo: |
This study compares three databases in the agricultural sciences?AGRICOLA, AGRIS, and CAB?using as a basis the entire range of periodical titles indexed by each. It proposes to orient the users of these bases in their use and acquisition. The duplication rates of periodical titles among the three bases and in combinations of two by two were analyzed and the results revealed a duplication rate of 10.01% among the three. Other results bring into focus the distribution of periodical titles by countries and by continents in addition to demonstrating the best combinations of bases two by two in determined regions of the world. With respect to the documentation generated in the underdeveloped countries, the participation rate in the bases is low. It was concluded that the logical sequence for acquisition of the databases one at a time is CAB, AGRICOLA, and AGRIS, in this order. |
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Palavras-Chave: |
Base de dado; Caracteristica. |
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Thesagro: |
Agricultura. |
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Thesaurus NAL: |
agriculture; databases. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01479naa a2200205 a 4500
001 1087265
005 2022-05-05
008 1981 bl uuuu u00u1 u #d
100 1 $aLONGO, R. M. J.
245 $aCharacterization of databases in the agricultura sciences.$h[electronic resource]
260 $c1981
300 $ap. 83-92
520 $aThis study compares three databases in the agricultural sciences?AGRICOLA, AGRIS, and CAB?using as a basis the entire range of periodical titles indexed by each. It proposes to orient the users of these bases in their use and acquisition. The duplication rates of periodical titles among the three bases and in combinations of two by two were analyzed and the results revealed a duplication rate of 10.01% among the three. Other results bring into focus the distribution of periodical titles by countries and by continents in addition to demonstrating the best combinations of bases two by two in determined regions of the world. With respect to the documentation generated in the underdeveloped countries, the participation rate in the bases is low. It was concluded that the logical sequence for acquisition of the databases one at a time is CAB, AGRICOLA, and AGRIS, in this order.
650 $aagriculture
650 $adatabases
650 $aAgricultura
653 $aBase de dado
653 $aCaracteristica
700 1 $aMACHADO, U. D.
773 $tJournal of the American Society for Information Science$gv. 32, n. 2, p. 83-91, mar. 1981.
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Embrapa Unidades Centrais (AI-SEDE) |
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