the only species among the 11 analysed that lacks a record for ALDH1A1. Interestingly, a protein blast (blastp) search using human ALDH1A1 and limiting results to fish species only (NCBI taxid: 7898) revealed ALDH1A2 homologues in multiple species (including salmon, pufferfish, ricefish and bichir), but no records for ALDH1A1 in any fish species. This is consistent with previous findings that indicate that ALDH1A1 is not present in the teleost lineage [23].
