====== Auxotrophy ======

===== Auxotrophic strains offer two main advantages =====
  - Easier to remove from tissue culture
  - Higher transformation efficiencies

When it comes to auxotrophy or strains that require medium supplementation, many examples exist. But certain mutations can be more favorable in one plant species versus another. 
  - Amino acid 
  - Nucleoside
  - Sugar
  - Inorganics