|
|
Registros recuperados : 9 | |
1. | | RIPAMONTE, P.; MERIGHE, G. K. F.; CAETANO, A. R.; WATANABE, Y. F.; MEIRELLES, F. V. Uso da técnica de differential display PCR (DDPCR) na identificação de genes expressos diferencialmente em embriões bovinos produzidos in vitro. In: CONGRESSO BRASILEIRO DE GENÉTICA, 50., 2004, Costão do Santinho, Florianópolis. Resumos... Ribeirão Preto: Sociedade Brasileira de Genética, 2004. p. 111 Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
2. | | DE CAMPOS, T. A.; MERIGHE, G. K. F.; AMARAL, M. E. J.; MEIRELLES, F. V.; CAETANO, A. R. Construção de uma biblioteca genômica tipo BAC de nelore (Bos taurus indicus). In: CONGRESSO BRASILEIRO DE GENÉTICA, 54., 2008, Salvador. Resumos... Salvador: SBG, 2008. p. 224. 1 CD-ROM. Apresentado também no: In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 13., 2008, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. Resumo 028. Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
3. | | RIPAMONTE, P.; MESQUITA, L. G.; CORTEZZI, S. S.; BALIEIRO, J. C. de C.; MERIGHE, G. K. F.; WATANABE, Y. F.; CAETANO, A. R.; MEIRELLES, F. V. Differential gene expression and developmental competence in in vitro produced bovine embryos. Zygote, v. 20, p. 281-290, 2012. Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
4. | | BIASE, W. K. F. S.; CAETANO, A. R.; BIASE, F. H.; MERIGHE, G. K. F.; ACCORSI, M.; STRANIERI, P.; WATANABE, Y. F.; FERREIRA, C. R.; MEIRELLES, F. V. Identificação de SNPs nos genes Bmp15, Bmprii, Fgf8 e Fgf10 em vacas Nelore com histórico de aspiração folicular. In: CONGRESSO BRASILEIRO DE GENÉTICA, 53., 2007, Águas de Lindóia. Resumos... Águas de Lindóia: Sociedade Brasileira de Genética, 2007. Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
5. | | PERECIN, F.; NICIURA, S. C. M.; YAMAZAKI, W.; FERREIRA, C. R.; MERIGHE, G. K. F.; MEIRELLES, F. V.; GARCIA, J. M. Imprinted gene expression in in vivo- and in vitro-produced bovine embryos and chorio-allantoic membranes. Genetics and Molecular Research, v. 8, n. 1, p. 76-85, 2009. Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
6. | | PERECIN, F.; NICIURA, S. C. M.; YAMAZAKI, W.; FERREIRA, C. R.; BIASE, F. H.; MERIGHE, G. K. F.; MEIRELLES, F. V.; GARCIA, J. M. Imprinted gene expression in vivo-and in vitro-produced bovine fetuses and placentas. Reproduction, Fertility and Development, v. 20, n. 1, p. 173, 2008. Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
7. | | MIYAGI, E. S.; FRANÇA, A. F. de S.; LEME, P. R.; MAGNABOSCO, C. de U.; MEIRELLES, F. V.; MERIGHE, G. K. F. Caracterização mitocondrial de bovinos Caracu utilizando marcador molecular. Ciência Animal Brasileira, Goiânia, v. 9, n. 4, p. 839-846, out./dez. 2008. Biblioteca(s): Embrapa Cerrados. |
| |
8. | | PERECIN, F.; YAMAZAKI, W.; FERREIRA, C. R.; MÉO, S. C.; BIASE, F. H.; MERIGHE, G. K. F.; SARAIVA, N. Z.; TETZNER, T. A. D.; MEIRELLES, F. V.; GARCIA, J. M. Efeito do protocolo de sincronização celular na produção de clones bovinos. Acta Scientiae Veterinariae, v. 35, supl. 3, p. s1181, 2007. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 21., 2007, Salvador. Anais... Salvador: UFRGS, 2007. p. 1267 Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
9. | | PERECIN, F.; YAMAZAKI, W.; FERREIRA, C. R.; MÉO, S. C.; BIASE, F. H.; MERIGHE, G. K. F.; SARAIVA, N. Z.; TETZNER, T. A. D.; MEIRELLES, F. V.; GARCIA, J. M. Expressão de DNA metiltransferases em blastocistos bovinos produzidos in vivo e in vitro. Acta Scientiae Veterinariae, v. 35, supl. 3, p. 1181, 2007. Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
Registros recuperados : 9 | |
|
|
Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
24/03/2008 |
Data da última atualização: |
22/06/2023 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
PERECIN, F.; NICIURA, S. C. M.; YAMAZAKI, W.; FERREIRA, C. R.; BIASE, F. H.; MERIGHE, G. K. F.; MEIRELLES, F. V.; GARCIA, J. M. |
Afiliação: |
Felipe Perecin, USP/Pirassununga; SIMONE CRISTINA MEO NICIURA, CPPSE; Walt Yamazaki, Biotecnologia da Reprodução Animal Ltda; Christina Ramires Ferreira, Unicamp; Fernando Henrique Biase, USP/Pirassununga; Giovana Krentel Merighe, USP/Pirassununga; Flávio V. Meirelles, USP/Pirassununga; Joaquim Mansano Garcia, UNESP/Jaboticabal. |
Título: |
Imprinted gene expression in vivo-and in vitro-produced bovine fetuses and placentas. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Reproduction, Fertility and Development, v. 20, n. 1, p. 173, 2008. |
Idioma: |
Inglês |
Conteúdo: |
Some gestational alterations associated with bovine somatic cell nuclear transfer (SCNT) are presumably consequences of abnormal imprinted gene expression. This work aimed to evaluate the expression patterns of imprinted genes IGF2 and IGF2R in bovine fetuses and chorioallantoic membranes derived from in vivo- and in vitro-produced embryos. Fetuses were produced by AI (in vivo group, n = 3), IVF (n = 3), parthenogenesis (n = 3), or SCNT (n = 2). Cows with positive pregnancy diagnosis after ultrasonographic examination were slaughtered between Days 33 and 36 of gestation. The reproductive tract was transported on ice to the laboratory, where fetuses and chorioallantoic fragments were collected and stored in liquid nitrogen. Total RNA extraction was performed using TRIzol, according to manufacturer's instructions, and the reverse transcription reaction was carried out with 1 µg of total RNA, 6.75 µm oligo pd(T)12?18, and 50 U of reverse transcriptase (Improm-II, Promega, Madison, WI, USA). The relative quantification of IGF2 and IGF2R transcripts was done using real-time PCR with SYBR Green dye. The average efficiency of PCR amplifications was estimated for each gene using a linear regression on the logarithm of fluorescence per cycle (Ramakers et al. 2003 Neurosci. Lett. 339, 62?66), and the expression ratios were calculated according to the method described previously by Livak and Schmittgen (2001 Methods 25, 402?408). To verify statistical differences, a pair-wise fixed reallocation randomization test (Pfaffl et al. 2002 Nucl. Acids Res. 30, e36) was used. All expression ratios were normalized by glyceraldehyde 3-phosphate dehydrogenase expression and calibrated by the in vivo group (expression assumed as 1.00 for all genes and tissues). The analysis of relative differences on transcript levels of imprinted genes in fetuses revealed IGF2 down-regulation (P < 0.05) in the SCNT (0.19) and parthenogenetic (0.02) groups when compared to the in vivo group and IVF fetuses (2.02). In chorioallantois, IGF2 was down-regulated (P < 0.001) in parthenotes (0.001) when compared to the in vivo, IVF (3.13), and SCNT (0.98) groups. IGF2R was down-regulated (P < 0.001) in SCNT chorioallantois (0.25) when compared to the in vivo group. Low expression of IGF2 in parthenogenetic fetuses and chorioallantois confirms its imprinted status in bovine. Alterations in the relative frequency of IGF2 and IGF2R transcripts were observed in bovine SCNT-derived fetuses and chorioallantoic membranes, respectively, supporting the hypothesis that abnormalities in the expression of imprinted genes are causes for the low efficiency of SCNT procedures in this species. Such alterations suggest modifications in DNA methylation patterns at IGF2 and IGF2R imprinting centers. MenosSome gestational alterations associated with bovine somatic cell nuclear transfer (SCNT) are presumably consequences of abnormal imprinted gene expression. This work aimed to evaluate the expression patterns of imprinted genes IGF2 and IGF2R in bovine fetuses and chorioallantoic membranes derived from in vivo- and in vitro-produced embryos. Fetuses were produced by AI (in vivo group, n = 3), IVF (n = 3), parthenogenesis (n = 3), or SCNT (n = 2). Cows with positive pregnancy diagnosis after ultrasonographic examination were slaughtered between Days 33 and 36 of gestation. The reproductive tract was transported on ice to the laboratory, where fetuses and chorioallantoic fragments were collected and stored in liquid nitrogen. Total RNA extraction was performed using TRIzol, according to manufacturer's instructions, and the reverse transcription reaction was carried out with 1 µg of total RNA, 6.75 µm oligo pd(T)12?18, and 50 U of reverse transcriptase (Improm-II, Promega, Madison, WI, USA). The relative quantification of IGF2 and IGF2R transcripts was done using real-time PCR with SYBR Green dye. The average efficiency of PCR amplifications was estimated for each gene using a linear regression on the logarithm of fluorescence per cycle (Ramakers et al. 2003 Neurosci. Lett. 339, 62?66), and the expression ratios were calculated according to the method described previously by Livak and Schmittgen (2001 Methods 25, 402?408). To verify statistical differences, a pair-wise fixed rea... Mostrar Tudo |
Palavras-Chave: |
In vivo-and in vitro; Placentas; Produced bovine. |
Thesaurus NAL: |
gene expression. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42088/1/PROCI-2008.00004.pdf
|
Marc: |
LEADER 03515nam a2200241 a 4500 001 1048224 005 2023-06-22 008 2008 bl uuuu u00u1 u #d 100 1 $aPERECIN, F. 245 $aImprinted gene expression in vivo-and in vitro-produced bovine fetuses and placentas.$h[electronic resource] 260 $aReproduction, Fertility and Development, v. 20, n. 1, p. 173$c2008 520 $aSome gestational alterations associated with bovine somatic cell nuclear transfer (SCNT) are presumably consequences of abnormal imprinted gene expression. This work aimed to evaluate the expression patterns of imprinted genes IGF2 and IGF2R in bovine fetuses and chorioallantoic membranes derived from in vivo- and in vitro-produced embryos. Fetuses were produced by AI (in vivo group, n = 3), IVF (n = 3), parthenogenesis (n = 3), or SCNT (n = 2). Cows with positive pregnancy diagnosis after ultrasonographic examination were slaughtered between Days 33 and 36 of gestation. The reproductive tract was transported on ice to the laboratory, where fetuses and chorioallantoic fragments were collected and stored in liquid nitrogen. Total RNA extraction was performed using TRIzol, according to manufacturer's instructions, and the reverse transcription reaction was carried out with 1 µg of total RNA, 6.75 µm oligo pd(T)12?18, and 50 U of reverse transcriptase (Improm-II, Promega, Madison, WI, USA). The relative quantification of IGF2 and IGF2R transcripts was done using real-time PCR with SYBR Green dye. The average efficiency of PCR amplifications was estimated for each gene using a linear regression on the logarithm of fluorescence per cycle (Ramakers et al. 2003 Neurosci. Lett. 339, 62?66), and the expression ratios were calculated according to the method described previously by Livak and Schmittgen (2001 Methods 25, 402?408). To verify statistical differences, a pair-wise fixed reallocation randomization test (Pfaffl et al. 2002 Nucl. Acids Res. 30, e36) was used. All expression ratios were normalized by glyceraldehyde 3-phosphate dehydrogenase expression and calibrated by the in vivo group (expression assumed as 1.00 for all genes and tissues). The analysis of relative differences on transcript levels of imprinted genes in fetuses revealed IGF2 down-regulation (P < 0.05) in the SCNT (0.19) and parthenogenetic (0.02) groups when compared to the in vivo group and IVF fetuses (2.02). In chorioallantois, IGF2 was down-regulated (P < 0.001) in parthenotes (0.001) when compared to the in vivo, IVF (3.13), and SCNT (0.98) groups. IGF2R was down-regulated (P < 0.001) in SCNT chorioallantois (0.25) when compared to the in vivo group. Low expression of IGF2 in parthenogenetic fetuses and chorioallantois confirms its imprinted status in bovine. Alterations in the relative frequency of IGF2 and IGF2R transcripts were observed in bovine SCNT-derived fetuses and chorioallantoic membranes, respectively, supporting the hypothesis that abnormalities in the expression of imprinted genes are causes for the low efficiency of SCNT procedures in this species. Such alterations suggest modifications in DNA methylation patterns at IGF2 and IGF2R imprinting centers. 650 $agene expression 653 $aIn vivo-and in vitro 653 $aPlacentas 653 $aProduced bovine 700 1 $aNICIURA, S. C. M. 700 1 $aYAMAZAKI, W. 700 1 $aFERREIRA, C. R. 700 1 $aBIASE, F. H. 700 1 $aMERIGHE, G. K. F. 700 1 $aMEIRELLES, F. V. 700 1 $aGARCIA, J. M.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|