Ploidy mosaicism in well-developed nuclear transplants produced by transfer of adult somatic cell nuclei to nonenucleated eggs of medaka (Oryzias latipes). Other Scholarly Work

Kaftanovskaya, Elena, Motosugi, Nami, Kinoshita, Masato et al. (2007). Ploidy mosaicism in well-developed nuclear transplants produced by transfer of adult somatic cell nuclei to nonenucleated eggs of medaka (Oryzias latipes). . 49(9), 691-698. 10.1111/j.1440-169x.2007.00962.x

cited authors

  • Kaftanovskaya, Elena; Motosugi, Nami; Kinoshita, Masato; Ozato, Kenjiro; Wakamatsu, Yuko

fiu authors

abstract

  • Chromosomal abnormalities such as ploidy mosaicism have constituted a major obstacle to the successful nuclear transfer of adult somatic cell nuclei in lower vertebrates to date. Euploid mosaicism has been reported previously in well-developed amphibian transplants. Here, we investigated ploidy mosaicisms in well-developed transplants of adult somatic cell nuclei in medaka fish (Oryzias latipes). Donor nuclei from primary cultured cells from the adult caudal fin of a transgenic strain carrying the green fluorescent protein gene (GFP) were transferred to recipient nonenucleated eggs of a wild-type strain to produce 662 transplants. While some of the transplants developed beyond the body formation stage and several hatched, all exhibited varying degrees of abnormal morphology, limited growth and subsequent death. Twenty-one transplants, 19 embryos and two larvae, were selected for chromosomal analysis; all were well-developed 6-day-old or later embryonic stages exhibiting slight morphological abnormalities and the same pattern of GFP expression as that of the donor strain. In addition, all exhibited various levels of euploid mosaicism with haploid-diploid, haploid-triploid or haploid-diploid-triploid chromosome sets. No visible chromosomal abnormalities were observed. Thus, euploid mosaicism similar to that observed in amphibians was confirmed in well-developed nuclear transplants of fish.

publication date

  • December 1, 2007

keywords

  • Animals
  • Cell Nucleus
  • Cytogenetic Analysis
  • Embryo, Nonmammalian
  • Female
  • Green Fluorescent Proteins
  • Mosaicism
  • Nuclear Transfer Techniques
  • Oryzias
  • Ovum
  • Ploidies

Digital Object Identifier (DOI)

Medium

  • Print-Electronic

start page

  • 691

end page

  • 698

volume

  • 49

issue

  • 9