Published October 2, 2026 | Version v1

Figure 2 from: Meshik MN, Antokhina TI, Deart YV, Chichvarkhina OV, Ekimova IA (2026) Dragons guard secrets: integrative systematics of Pteraeolidia semperi species complex (Gastropoda, Nudibranchia) from Vietnam. ZooKeys 1293: 347-376. https://doi.org/10.3897/zookeys.1293.195366

  • 1. Invertebrate Zoology Department, Lomonosov Moscow State University, Moscow, Russia
  • 2. Laboratory of Marine Invertebrate Morphology and Ecology, A.N. Severtsov Institute of Ecology and Evolution RAS, Moscow, Russia
  • 3. National Scientific Center of Marine Biology FEB RAS, Vladivostok, Russia

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Figure 2 Histogram of genetic distances generated using the ASAP algorithm (Puillandre et al. 2021). The x-axis shows the pairwise genetic distance between two sequences (computed under the JC69 model), and the y-axis shows the frequency, i.e., the number of sequence pairs falling within each distance interval. The barcode gap is the trough separating the cluster of smaller (putatively intraspecific) distances from that of larger (putatively interspecific) distances; in this dataset several such gaps are present (see text), which underlies the ambiguity in the number of delimited MOTUs.

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Journal article: 10.3897/zookeys.1293.195366 (DOI)
Journal article: https://zenodo.org/record/23155368 (URL)