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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
14/01/2020 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FONSECA, J. F. da; BATISTA, R. I. T. P.; TREVIZAN, J. T.; SOUZA-FABJAN, J. M. G.; BRANDÃO, F. Z.; CAMARGO, L. S. de A. |
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Afiliação: |
JEFERSON FERREIRA DA FONSECA, CNPC; Ribrio Ivan Tavares Pereira Batista; Juliane Teramachi Trevizan; Joanna Maria Gonçalves Souza-Fabjan; Felipe Zandonadi Brandão; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL. |
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Título: |
Goat incubator: can bovine oocytes be matured in the uterine horn of a goat? |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, Londrina, v. 40, n. 6, supp. 3, p. 3789-3796, 2019. |
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DOI: |
10.5433/1679-0359.2019v40n6Supl3p3789 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract We used a goat as a live incubator, along with associated nonsurgical embryo transfer techniques, to perform ex situ (in vivo) maturation of bovine oocytes. Immature bovine cumulus-oocyte complexes (COCs) aspirated from 3-8 mm follicles from slaughterhouse ovaries were randomly split into two groups for in vitro (IVM; n = 38) and ex situ maturation (ESM; n = 40). IVM was performed for a period of 24 h at 38.5 ºC and with 5% CO2 in the air of maximum humidity. For ESM, a presynchronized nulliparous goat (12 months old) received 40 immature COCs in the uterine horn apiece, via the transcervical route. After 24 h the structures were retrieved through uterine flushing. Analyses of nuclear maturation and lipid quantification were performed on oocytes from both groups. Fluorescent intensity was compared using the Student?s t-test. Forty-seven percent of the structures were recovered after uterine flushing (19/40). The nuclear maturation rate was 94.5% (18/19) and 81.6% (31/38) for the ESM and IVM groups, respectively. In vitro-matured COCs contained more lipid droplets, expressed as a higher amount (p < 0.05) of emitted fluorescent light than ex situ-matured COCs (858 ± 73 vs. 550 ± 64 arbitrary fluorescence units, respectively). This is the first report to associate nonsurgical embryo transfer techniques and a goat as a live incubator for the maturation of bovine oocytes. We conclude that bovine oocytes can progress meiotically in the uterus horn of a goat and that transcervical transfer of bovine oocytes to a goat?s uterus could present an alternative to nuclear maturation. MenosAbstract We used a goat as a live incubator, along with associated nonsurgical embryo transfer techniques, to perform ex situ (in vivo) maturation of bovine oocytes. Immature bovine cumulus-oocyte complexes (COCs) aspirated from 3-8 mm follicles from slaughterhouse ovaries were randomly split into two groups for in vitro (IVM; n = 38) and ex situ maturation (ESM; n = 40). IVM was performed for a period of 24 h at 38.5 ºC and with 5% CO2 in the air of maximum humidity. For ESM, a presynchronized nulliparous goat (12 months old) received 40 immature COCs in the uterine horn apiece, via the transcervical route. After 24 h the structures were retrieved through uterine flushing. Analyses of nuclear maturation and lipid quantification were performed on oocytes from both groups. Fluorescent intensity was compared using the Student?s t-test. Forty-seven percent of the structures were recovered after uterine flushing (19/40). The nuclear maturation rate was 94.5% (18/19) and 81.6% (31/38) for the ESM and IVM groups, respectively. In vitro-matured COCs contained more lipid droplets, expressed as a higher amount (p < 0.05) of emitted fluorescent light than ex situ-matured COCs (858 ± 73 vs. 550 ± 64 arbitrary fluorescence units, respectively). This is the first report to associate nonsurgical embryo transfer techniques and a goat as a live incubator for the maturation of bovine oocytes. We conclude that bovine oocytes can progress meiotically in the uterus horn of a goat and that trans... Mostrar Tudo |
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Palavras-Chave: |
Bovine oocytes; COCs; Ex-situ maturation; In vitro maturation; Nonsurgical embryo transfer technique. |
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Thesaurus Nal: |
Goats. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208736/1/Goat-incubator-can-bovine-oocytes.pdf
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Marc: |
LEADER 02452naa a2200265 a 4500
001 2118709
005 2024-02-06
008 2019 bl uuuu u00u1 u #d
024 7 $a10.5433/1679-0359.2019v40n6Supl3p3789$2DOI
100 1 $aFONSECA, J. F. da
245 $aGoat incubator$bcan bovine oocytes be matured in the uterine horn of a goat?$h[electronic resource]
260 $c2019
520 $aAbstract We used a goat as a live incubator, along with associated nonsurgical embryo transfer techniques, to perform ex situ (in vivo) maturation of bovine oocytes. Immature bovine cumulus-oocyte complexes (COCs) aspirated from 3-8 mm follicles from slaughterhouse ovaries were randomly split into two groups for in vitro (IVM; n = 38) and ex situ maturation (ESM; n = 40). IVM was performed for a period of 24 h at 38.5 ºC and with 5% CO2 in the air of maximum humidity. For ESM, a presynchronized nulliparous goat (12 months old) received 40 immature COCs in the uterine horn apiece, via the transcervical route. After 24 h the structures were retrieved through uterine flushing. Analyses of nuclear maturation and lipid quantification were performed on oocytes from both groups. Fluorescent intensity was compared using the Student?s t-test. Forty-seven percent of the structures were recovered after uterine flushing (19/40). The nuclear maturation rate was 94.5% (18/19) and 81.6% (31/38) for the ESM and IVM groups, respectively. In vitro-matured COCs contained more lipid droplets, expressed as a higher amount (p < 0.05) of emitted fluorescent light than ex situ-matured COCs (858 ± 73 vs. 550 ± 64 arbitrary fluorescence units, respectively). This is the first report to associate nonsurgical embryo transfer techniques and a goat as a live incubator for the maturation of bovine oocytes. We conclude that bovine oocytes can progress meiotically in the uterus horn of a goat and that transcervical transfer of bovine oocytes to a goat?s uterus could present an alternative to nuclear maturation.
650 $aGoats
653 $aBovine oocytes
653 $aCOCs
653 $aEx-situ maturation
653 $aIn vitro maturation
653 $aNonsurgical embryo transfer technique
700 1 $aBATISTA, R. I. T. P.
700 1 $aTREVIZAN, J. T.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aBRANDÃO, F. Z.
700 1 $aCAMARGO, L. S. de A.
773 $tSemina: Ciências Agrárias, Londrina$gv. 40, n. 6, supp. 3, p. 3789-3796, 2019.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
08/12/2011 |
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Data da última atualização: |
15/02/2018 |
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Autoria: |
PRATTA, G. R.; MAHUAD, S. L.; DÍAZ, A.; BASTÉ, E. M.; LIBERATTI, D. R.; RUBÉN RODRÍGUEZ, G.; ZORZOLI, R. |
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Afiliação: |
Guillermo Raúl Pratta, Universidad Nacional de Rosario/Facultad de Ciencias Agrarias/Cátedra de Genética; Sabina Lara Mahuad, Universidad Nacional de Rosario/Facultad de Ciencias Agrarias/Cátedra de Genética; Ariana Díaz, Universidad de Morón/Facultad de Ciencias Exactas/Químicas y Naturales; Ezequiel Marchionni Basté, Universidad Nacional de Rosario/Facultad de Ciencias Agrarias/Cátedra de Genética; David Rodolfo Liberatti, Universidad Nacional de Rosario/Facultad de Ciencias Agrarias/Cátedra de Genética; Gustavo Rubén Rodríguez, Universidad Nacional de Rosario/Facultad de Ciencias Agrarias/Cátedra de Genética; Roxana Zorzoli, Universidad Nacional de Rosario/Facultad de Ciencias Agrarias/Cátedra de Genética. |
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Título: |
Genética molecular de caracteres cuantitativos en cruzamientos dialélicos de tomate. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 5, p. 509-516, maio 2011 |
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Idioma: |
Espanhol |
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Notas: |
Título em inglês: Molecular genetics of quantitative traits in tomato diallel crosses. |
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Conteúdo: |
El objetivo de este trabajo fue evaluar marcadores moleculares y caracteres cuantitativos en un cruzamiento dialélico completo sin recíprocos, entre cinco líneas recombinantes de tomate y sus híbridos. Se obtuvieron perfiles de AFLP ("amplified fragment length polymorphism") y de polipéptidos del pericarpio en cuatro estados de madurez del fruto de 15 genotipos. Se evaluaron, entre otros: peso, acidez titulable, pH, vida poscosecha y firmeza. Se calculó el porcentaje de polimorfismo para los marcadores moleculares y el porcentaje de variabilidad genética para los caracteres cuantitativos en el grupo de líneas recombinantes, el de híbridos y el conjunto de genotipos. Se realizaron análisis de agrupamiento con cada nivel de variación genética. Para AFLP, el porcentaje de polimorfismo varió entre 34 y 54% y, para los perfiles polipeptídicos, entre 40 y 78%. Mayor polimorfismo fue observado en el grupo de híbridos. La variabilidad genética fue de 100% para acidez y 34% para firmeza, con los mayores valores en los parentales. La similitud genética varió entre los genotipos según el nivel de variación genética; pero la consistencia en el agrupamiento de algunas líneas recombinantes y sus híbridos fue conservada, lo que evidenció asociaciones entre los datos moleculares y fenotípicos. |
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Palavras-Chave: |
Calidad del fruto; Mejoramiento genético vegetal; Recursos fitogenéticos. |
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Thesagro: |
Biotecnologia; Lycopersicon esculentum; Melhoramento genético vegetal. |
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Thesaurus NAL: |
Biotechnology; Fruit quality; Plant breeding; Plant genetic resources; Solanum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49683/1/46n05a08.pdf
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Marc: |
LEADER 02400naa a2200337 a 4500
001 1908978
005 2018-02-15
008 2011 bl uuuu u00u1 u #d
100 1 $aPRATTA, G. R.
245 $aGenética molecular de caracteres cuantitativos en cruzamientos dialélicos de tomate.
260 $c2011
500 $aTítulo em inglês: Molecular genetics of quantitative traits in tomato diallel crosses.
520 $aEl objetivo de este trabajo fue evaluar marcadores moleculares y caracteres cuantitativos en un cruzamiento dialélico completo sin recíprocos, entre cinco líneas recombinantes de tomate y sus híbridos. Se obtuvieron perfiles de AFLP ("amplified fragment length polymorphism") y de polipéptidos del pericarpio en cuatro estados de madurez del fruto de 15 genotipos. Se evaluaron, entre otros: peso, acidez titulable, pH, vida poscosecha y firmeza. Se calculó el porcentaje de polimorfismo para los marcadores moleculares y el porcentaje de variabilidad genética para los caracteres cuantitativos en el grupo de líneas recombinantes, el de híbridos y el conjunto de genotipos. Se realizaron análisis de agrupamiento con cada nivel de variación genética. Para AFLP, el porcentaje de polimorfismo varió entre 34 y 54% y, para los perfiles polipeptídicos, entre 40 y 78%. Mayor polimorfismo fue observado en el grupo de híbridos. La variabilidad genética fue de 100% para acidez y 34% para firmeza, con los mayores valores en los parentales. La similitud genética varió entre los genotipos según el nivel de variación genética; pero la consistencia en el agrupamiento de algunas líneas recombinantes y sus híbridos fue conservada, lo que evidenció asociaciones entre los datos moleculares y fenotípicos.
650 $aBiotechnology
650 $aFruit quality
650 $aPlant breeding
650 $aPlant genetic resources
650 $aSolanum
650 $aBiotecnologia
650 $aLycopersicon esculentum
650 $aMelhoramento genético vegetal
653 $aCalidad del fruto
653 $aMejoramiento genético vegetal
653 $aRecursos fitogenéticos
700 1 $aMAHUAD, S. L.
700 1 $aDÍAZ, A.
700 1 $aBASTÉ, E. M.
700 1 $aLIBERATTI, D. R.
700 1 $aRUBÉN RODRÍGUEZ, G.
700 1 $aZORZOLI, R.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 46, n. 5, p. 509-516, maio 2011
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