Genetically Modified Oysters

Scientific Name: Ostreidae

How do you modify an oyster?

  • insertion of a toxic chemical, a mycotoxin, and cytochalasin B at a critical moment during meiosis into the newly fertilized egg to prevent the reduction of the 2 sets of the female chromosomes to one, so it ends up with 3 sets (triploidy).

Genetic Mutation: Pros & Cons


  • 33% larger than diploid cells
  • faster production
  • larger products


  • carcinogen and cytochalasin B linked with cancer (increases risk)
  • mortality of oyster larvae

Production of Oysters

United States:

  • increased by 806% between 2006-2012
  • 9.8 mil in 2008
  • 28.1 mil in 2012


  • 4.83 million tons a year