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Functional Cloning Using a Xenopus Oocyte Expression System
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Published on: January 30, 2016

Altered gene expression in cloned piglets.

X Cindy Tian1, Joonghoon Park, Richard Bruno

  • 1Department of Animal Science and Center for Regenerative Biology, University of Connecticut, Storrs, CT 06269, USA. xiuchun.tian@uconn.edu

Reproduction, Fertility, and Development
|January 21, 2009
PubMed
Summary
This summary is machine-generated.

This study compared gene expression in cloned pigs versus conventionally bred pigs. Epigenetic modifications and DNA methylation were analyzed in cloned pigs, offering insights into developmental changes.

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Area of Science:

  • Animal cloning
  • Epigenetics
  • Gene expression analysis

Background:

  • Studies on cloned pigs are limited, especially regarding gene expression profiles.
  • DNA microarray technology for pig gene expression is not widely available.
  • Understanding epigenetic changes in cloned animals is crucial.

Purpose of the Study:

  • To compare gene expression profiles between cloned pigs and conventionally bred pigs.
  • To investigate DNA methylation status in differentially expressed genes of cloned pigs.
  • To review existing findings on epigenetic and other changes in cloned embryos and pigs.

Main Methods:

  • Somatic cell nuclear transfer (SCNT) for cloning pigs.
  • Gene expression profiling at birth and 1 month of age.
  • Analysis of DNA methylation in differentially expressed genes.

Main Results:

  • Identified differentially expressed genes between cloned and conventionally bred pigs.
  • Examined the DNA methylation status of these genes.
  • Summarized existing data on epigenetic modifications in cloned pig embryos and offspring.

Conclusions:

  • Gene expression profiles differ between cloned and conventionally bred pigs.
  • Epigenetic modifications, including DNA methylation, play a role in cloned pig development.
  • Further research is needed to fully understand the implications of these changes.