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Page 8 of 19                   Kok et al. Microbiome Res Rep 2023;2:30  https://dx.doi.org/10.20517/mrr.2023.16

               Table 4. Details of 26 Paenibacillus larvae phages discovered, sequenced and annotated
                              Geographic   Bacteria isolated  Genome length   No. of   GC content   Cluster  Accession
                              region       on           (bp)          genes    (%)              No.
                ABAtENZ       Hamilton     Pl-PFR-2017  44,419        82       42.97      Vegas  OP503968
                AJG77         Wanaka       Pl-PFR-2017  44,417        82       42.98      Vegas  OP503969
                ApiWellbeing  Masterton    Pl-F1A       44,429        82       43.01      Vegas  OP503970
                BarryFoster_Benicio Whangarei  Pl-F1A   44,421        82       42.98      Vegas  OP503543
                Bloomfield    Haast        Pl-PFR-2017  44,419        82       42.98      Vegas  OP503971
                Bob           Matakana Island  F2B      43,553        80       43.03      Vegas  OP503972
                Callan        West Taratahi  Pl-PFR-2006  44,768      77       39.69      Harrison OP503989
                Carlos        Carterton    Pl-F1A       44,430        83       42.98      Vegas  OP503973
                Dante         Elgin        Pl-WAI       44,420        82       42.98      Vegas  OP503974
                Dash          West Taratahi  Pl-PFR-2006  44,599      79       39.39      Harrison OP503990
                FutureBee     Hamilton     Pl-TP        44,417        83       42.98      Vegas  OP503975
                GaryLarson    Willowby     Pl-F2B       44,420        82       42.98      Vegas  OP503976
                GIW2016       Wanaka       Pl-PFR-2017  43,555        80       43.01      Vegas  OP503977
                Jacinda       Haast        Pl-PFR-2017  44,419        82       42.97      Vegas  OP503978
                Lena          Rotorua      Pl-PFR-2017  44,420        82       42.97      Vegas  OP503979
                Lilo          Pukekawa     Pl-F1A       40,941        70       40.33      Harrison OP503991
                Logan         Tolaga Bay   Pl-PFR-2017  44,419        82       42.99      Vegas  OP503980
                LunBun        Gisborne     Pl-F1A       44,421        82       42.97      Vegas  OP494865
                NHScienceFair  Albany      F1A          44,419        82       42.98      Vegas  OP503981
                Ollie         Marton       Pl-PFR-2017  44,420        83       42.98      Vegas  OP503982
                Rae.2Bee1     Fairton      Pl-TP        44,420        82       42.97      Vegas  OP503983
                Rosalind      Westport     F1A          43,556        80       43.00      Vegas  OP503984
                Ted           Napier       Pl-PFR-2017  44,419        82       42.99      Vegas  OP503985
                TonyLawson77  Palmerston North  Pl-F1A  44,420        82       42.96      Vegas  OP503986
                UtuhinaGold_Zacery Rotorua  Pl-PFR-2017  44,420       82       42.97      Vegas  OP503987
                WildCape      Gisborne     Pl-F1A       44,430        82       43.00      Vegas  OP503988

               P. Larvae: Paenibacillus larvae.


               prevented us from progressing to genome sequencing and electron microscopy as our typical methods
               require 10  mL . We therefore developed the Rapid Adaptive Mutation of Phage-UP or RAMP-UP protocol
                        9
                            -1
               to increase phage titer by mutation, which can work in as little as four days .
                                                                              [30]
               Upon sequencing, we discovered the New Zealand phages were between 40-44 kbp in length with 70-83
               genes per genome. The phages belong to two of the four major genomically determined clusters of P. larvae
               phages; three belong to the Harrison cluster and 23 belong to the Vegas cluster [Table 4]. Clusters were
               determined by average nucleotide identity (ANI); if two phages have ANI greater than or equal to 60%, they
               are placed in the same cluster . All New Zealand P. larvae phages are linear and use the 3’ cohesive end
                                         [19]
               DNA packaging mechanism, similar to the majority of previously described P. larvae phages . The New
                                                                                               [19]
               Zealand P. larvae phages are lytic in vitro, despite the presence of annotated integrases in their genomes, the
               presence of which suggests the capacity for a temperate lifestyle. Phage Dash (Harrison Cluster) has an
               integrase at GP38 and phage ABAtENZ (Vegas Cluster) has an integrase at GP32 [Figure 3]. The presence
               of integrases, and the absence of evidence of a temperate lifecycle  in the laboratory, is consistent across the
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