Our section of SEA-PHAGES is annotating PrairieDogTown in Cluster FO. We noticed that PrairieDogTown (FO) has 82 predicted features, while the rest of the phages in FO has 52-54 features. When we dug into this a bit, we realized that the discrepancy in the number of features appears to be a difference in the number of reverses. PrairieDogTown has ~27 reverse genes while JanetJ and Aoka have 3-5. The rest of the phage in the cluster are still draft genomes. Anyone have any ideas about why we would be seeing such a large discrepancy in the number of reverses? Is there a technical reason why more reverses would be detected? Thanks!

Note that there's no Cluster FO specific topic, so I'm posting in F.