FIG 5.

Dendrograms (single linkage) representing the genetic relationship between L. monocytogenes isolates identified as L2-SL8-ST120-CT786 by using core genome multilocus sequence typing (cgMLST) (A), whole-genome MLST (wgMLST) (B), and single-nucleotide polymorphism (SNP) (C). Numbers on the branches indicate the allele/SNP differences between isolates. Isolates indicated with I are confirmed outbreak isolates. Those isolates indicated with II had low genetic diversity and occurred at approximately the same time as the outbreak isolates (I). ^a, regions within New Zealand have been anonymized; ^b, pulsotype assigned as a part of the PulseNet Aotearoa/New Zealand database; NT, not tested; ^c, SNP analysis was performed using the first clinical case (1999) for L2-SL8-ST120-CT786 as the reference. Red dotted lines represent cutoffs of 7 and 10 core and whole-genome allele differences, respectively (A and B), as previously proposed (6, 13).