Commentary on “Complex Variability within the THCA and CBDA Synthase Genes in Cannabis Species”

We read with great interest the 2016 publication by Allen et al. on variation in THCA and CBDA synthase DNA sequences from seized marijuana samples [1]. We wish to comment on the question of designing a molecular assay to accurately predict THCA content in Cannabis plants. This is an especially important issue in light of current regulatory policy and the expanding Cannabis economy.