What is the farthes back dating gences that have you found?

Question: What is the farthes back dating gences that have you found?
- Keywords:
  dating,
  gene
Asked by Lee to Sharon on 15 Mar 2017.
- Xueyuan Jiang answered on 15 Mar 2017:
  
  Hi Lee,
  
  The most ancient gene I have worked with is shh. It is a very conserved gene that plays important roles during the development of embryo in many species. It’s not a single gene, but rather a gene family, which means a lot of similar genes.
  
  Sharon