Figure 3

Maximum likelihood phylogenetic tree based on the concatenated nucleotide alignment of the 13 PCGs of 110 Hypsogastropoda mitogenomes. Numbers above branches indicate bootstrap values (branches without a number have a bootstrap of 100). Branch colors follow the classification of Bouchet & Rocroi (2005): Littorinimorpha (blue), Neogastropoda (red), outside both clades (black). Clades proposed by Bouchet et al. (2017) are highlighted: Latrogastropoda (red), Latrogastropoda “uncertain position” (dark blue), Non-Latrogastropoda (light blue). Names of SPFs labeled on branches, and species names are organized and colored by family. The # symbol signals specimen of A. gigas sequenced in this study. Three Heterobranchia species were used as outgroups (Pupa strigosa, Aplysia californica, and Tyrannodoris europaea). See Table S1 for sources.