Data/hora: 12/06/2024 11:05:21

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 11/11/2010
Data da última atualização: | 30/06/2023
Autoria: | CHIARATTI, M. R.; FERREIRA, C. R.; MEIRELLES, F. V.; MÉO, S. C.; PERECIN, F.; SMITH, L. C.; FERRAZ, M. L.; SÁ FILHO, M. F. de; GIMENES, L. U.; BARUSELLI, P. S.; GASPARRINI, B.; GARCIA, J. M.
Afiliação: | MARCOS ROBERTO CHIARATTI, FZEA-USP, Pirassununga-SP; CHRISTINA RAMIRES FERREIRA, FCAV-UNESP/JABOTICABAL-SP; FLÁVIO VIEIRA MEIRELLES, FZEA-USP/PIRASSUNUNGA-SP; SIMONE CRISTINA MÉO, CPPSE; FELIPE PERECIN, FCAV-UNESP/JABOTICABAL-SP; LAWRENCE CHARLES SMITH, CRRA, UNIVERSITE DE MONTREAL, SAINT-HYACINTHE-QC, CANADA.; MÁRCIO LEÃO FERRAZ, VIDA REPRODUTIVA CONSULTORIA, CRAVINHOS-SP, BRAZIL; MANOEL FRANCISCO DE SÁ FILHO, REPRODUÇÃO ANIMAL, UNIVERSIDADE DE SÃO PAULO/ SÃO PAULO-SP; LINDSAY UNNO GIMENES, USP/SÃO PAULO, SP; PIETRO SAMPAIO BARUSELLI, REPRODUÇÃO ANIMAL, UNIVERSIDADE DE SÃO PAULO/ SÃO PAULO-SP; BIANCA GASPARRINI, DISCIZIA, FEDERICO II UNIVERSITY, NAPOLI, ITALY.; JOAQUIM MANSANO GARCIA, FCAV-UNESP/JABOTICABAL-SP.
Título: | Xenooplasmic transfer between buffalo and bovine enables development of homoplasmic offspring.
Ano de publicação: | 2010
Fonte/Imprenta: | Cellular Reprogramming, v. 12, n. 2, 2010.
DOI: | 10.1089/cell1009.0076.
Idioma: | Português
Conteúdo: | Nuclear-mitochondrial incompatibilities may be responsible for the development failure reported in embryos and fetuses produced by interspecies somatic cell nuclear transfer (iSCNT). Herein we performed xenooplasmic transfer (XOT) by introducing 10 to 15% of buffalo ooplasm into bovine zygotes to assess its effect on the persistence of buffalo mitochondrial DNA (mtDNA). Blastocyst rates were not compromised by XOT in comparison to both in vitro fertilized embryos and embryos produced by transfer of bovine ooplasm into bovine zygotes. Moreover, offspring were born after transfer of XOT embryos to recipient cows. Buffalo mtDNA introduced in zygotes was still present at the blastocyst stage (8.3 vs. 9.3%, p¼0.11), indicating unaltered heteroplasmy during early development. Nonetheless, no vestige of buffalo mtDNA was found in offspring, indicating a drift to homoplasmy during later stages of development. In conclusion, we show that the buffalo mtDNA introduced by XOT into a bovine zygote do not compromise embryo development. On the other hand, buffalo mtDNA was not inherited by offspring indicating a possible failure in the process of interspecies mtDNA replication.
Palavras-Chave: | Buffalo; Oocyte cytoplasm.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (19685-1) - UPC - AP - DD - PROCI-2010.00205 - CHI - 2010.00205 - DIS