Hyper-polyploid embryos survive after implantation in mice.
Zygote
; 28(3): 247-249, 2020 Jun.
Article
en En
| MEDLINE
| ID: mdl-32151294
ABSTRACT
Polyploids generated by natural whole genome duplication have served as a dynamic force in vertebrate evolution. As evidence for evolution, polyploid organisms exist generally, however there have been no reports of polyploid organisms in mammals. In mice, polyploid embryos under normal culture conditions normally develop to the blastocyst stage. Nevertheless, most tetraploid embryos degenerate after implantation, indicating that whole genome duplication produces harmful effects on normal development in mice. Most previous research on polyploidy has mainly focused on tetraploid embryos. Analysis of various ploidy outcomes is important to comprehend the effects of polyploidization on embryo development. The purpose of this present study was to discover the extent of the polyploidization effect on implantation and development in post-implantation embryos. This paper describes for the first time an octaploid embryo implanted in mice despite hyper-polyploidization, and indicates that these mammalian embryos have the ability to implant, and even develop, despite the harmfulness of extreme whole genome duplication.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Implantación del Embrión
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Poliploidía
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Blastocisto
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Genoma
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Transferencia de Embrión
Idioma:
En
Revista:
Zygote
Asunto de la revista:
EMBRIOLOGIA
Año:
2020
Tipo del documento:
Article