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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
30/07/2009 |
Data da última atualização: |
14/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PERECIN, F.; NICIURA, S. C. M.; YAMAZAKI, W.; FERREIRA, C. R.; MERIGHE, G. K. F.; MEIRELLES, F. V.; GARCIA, J. M. |
Afiliação: |
F. PERECIN, FCAV/UNESP, Jaboticabal, SP.; SIMONE CRISTINA MEO NICIURA, CPPSE; W. YAMAZAKI, UNESP; C. R. FERREIRA, FZEA/USP, Pirassununga, SP.; G. K. F. MERIGHE, FZEA/USP, Pirassununga, SP.; F. V. MEIRELLES, FZEA/USP, Pirassununga, SP.; J. M. GARCIA, FCAV/UNESP, Jaboticabal, SP. |
Título: |
Imprinted gene expression in in vivo- and in vitro-produced bovine embryos and chorio-allantoic membranes. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
Genetics and Molecular Research, v. 8, n. 1, p. 76-85, 2009. |
DOI: |
10.4238/vol8-1gmr541 |
Idioma: |
Inglês |
Conteúdo: |
Cloning by nuclear transfer is often associated with poor results due to abnormal nuclear reprogramming of somatic donor cells and altered gene expression patterns. We investigated the expression patterns of imprinted genes IGF2 and IGF2R in 33- to 36-day bovine embryos and chorio-allantoic membranes derived from in vivo- and in vitro-produced embryos by somatic cell nuclear transfer (SCNT), parthenogenetic activation, and in vitro fertilization (IVF). There was a lower IGF2 expression rate in the SCNT (0.19) and parthenogenetic (0.02) groups when compared to in vivo and IVF embryos (2.01; P < 0.05). In the chorio-allantoic membranes, IGF2 showed a baseline expression pattern (P < 0.05) in parthenotes (0.001) when compared to in vivo, IVF (3.13), and SCNT (0.98) groups. IGF2R was less expressed (P < 0.05) in SCNT chorio-allantoic membranes (0.25) when compared to the in vivo group. The low expression of IGF2 in parthenogenetic embryos and chorio-allantoic membranes confirms its imprinted status in cattle. Alterations in the relative frequency of IGF2 and IGF2R transcripts were observed in SCNT-derived bovine embryos and chorio-allantoic membranes, respectively, supporting the hypothesis that abnormalities in the expression of imprinted genes are causes of the low efficiency of SCNT procedures in this species. |
Palavras-Chave: |
IGF2; IGF2R; Nuclear transfer. |
Thesaurus Nal: |
cattle; epigenetics; genomic imprinting. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPPSE-2009-09/18524/1/PROCISCMN2009.00069.pdf
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Marc: |
LEADER 02143naa a2200277 a 4500 001 1256254 005 2023-03-14 008 2009 bl uuuu u00u1 u #d 024 7 $a10.4238/vol8-1gmr541$2DOI 100 1 $aPERECIN, F. 245 $aImprinted gene expression in in vivo- and in vitro-produced bovine embryos and chorio-allantoic membranes.$h[electronic resource] 260 $c2009 520 $aCloning by nuclear transfer is often associated with poor results due to abnormal nuclear reprogramming of somatic donor cells and altered gene expression patterns. We investigated the expression patterns of imprinted genes IGF2 and IGF2R in 33- to 36-day bovine embryos and chorio-allantoic membranes derived from in vivo- and in vitro-produced embryos by somatic cell nuclear transfer (SCNT), parthenogenetic activation, and in vitro fertilization (IVF). There was a lower IGF2 expression rate in the SCNT (0.19) and parthenogenetic (0.02) groups when compared to in vivo and IVF embryos (2.01; P < 0.05). In the chorio-allantoic membranes, IGF2 showed a baseline expression pattern (P < 0.05) in parthenotes (0.001) when compared to in vivo, IVF (3.13), and SCNT (0.98) groups. IGF2R was less expressed (P < 0.05) in SCNT chorio-allantoic membranes (0.25) when compared to the in vivo group. The low expression of IGF2 in parthenogenetic embryos and chorio-allantoic membranes confirms its imprinted status in cattle. Alterations in the relative frequency of IGF2 and IGF2R transcripts were observed in SCNT-derived bovine embryos and chorio-allantoic membranes, respectively, supporting the hypothesis that abnormalities in the expression of imprinted genes are causes of the low efficiency of SCNT procedures in this species. 650 $acattle 650 $aepigenetics 650 $agenomic imprinting 653 $aIGF2 653 $aIGF2R 653 $aNuclear transfer 700 1 $aNICIURA, S. C. M. 700 1 $aYAMAZAKI, W. 700 1 $aFERREIRA, C. R. 700 1 $aMERIGHE, G. K. F. 700 1 $aMEIRELLES, F. V. 700 1 $aGARCIA, J. M. 773 $tGenetics and Molecular Research$gv. 8, n. 1, p. 76-85, 2009.
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Embrapa Pecuária Sudeste (CPPSE) |
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1. | | 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.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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