The mitochondrial genome of the planorbid snail Planorbella duryi

Abstract

The complete mitochondrial genome of a freshwater planorbid snail, Planorbella duryi (Mollusca, Gastropoda) was recovered from de novo assembly of genomic sequences generated with the Illumina NextSeq500 platform. The P. duryi mitogenome (14,217 base pairs) is AT rich (72.69%) and comprises 13 protein-coding genes, two ribosomal subunit genes, and 22 transfer RNAs. The gene order is identical to that of Biomphalaria glabrata and other snail species in the family Planorbidae. This is the first full characterization of a mitochondrial genome of the genus Planorbella.

The complete mitochondrial genome and phylogenetic analysis of the deep-sea limpet Bathyacmaea lactea

“…For the stop codon, the atp6 and cox3 gene stops with TAG, while the other PCGs terminates with TAA. The B. lactea mitogenome is AT rich with a base composition of 32.31% A, 37.53% T, 9.93% C and 20.23% T, which is similar to other gastropod species (Schultz et al 2018). The small subunit ribosomal RNA (12S rRNA) and large subunit ribosomal RNA (16S rRNA) were annotated with sizes of 887 bp and 1,346 bp, respectively.…”

Mitochondrial genome of Bulinus truncatus (Gastropoda: Lymnaeoidea): Implications for snail systematics and schistosome epidemiology

“… a The locations of start and stop codons were identified based on the alignment of protein-coding regions, inferred using published gene models for planorbid snails ( Feldmeyer et al., 2015 ; Schultz et al., 2018 ; Zhang et al., 2018 ). …”

Comparative Mitogenome Analyses of Fifteen Ramshorn Snails and Insights into the Phylogeny of Planorbidae (Gastropoda: Hygrophila)

“…Due to the limited available mitogenomes of Planorbidae, it is necessary to further sequence additional Planorbidae mitogenomes to confirm the uniqueness of the gene arrangements in these species. The gene order of (A) Bulinus globosus [14], Bulinus nasutus [14], and Bulinus ugandae [14]; (B) Biomphalaria choanomphala [13], Biomphalaria glabrata [47], Biomphalaria pfeifferi [13], Biomphalaria straminea [13], Biomphalaria sudanica [13], Bulinus truncatus [13], Planorbella duryi [48] and Planorbella pilsbryi [30]; (C) Biomphalaria tenagophila [49]; (D) Anisus vortex [29]; (E) Polypylis sp. TS-2018 (GenBank accession number OR684570, reported in this study); (F) Gyraulus sp.…”

“…Nevertheless, our data support the genus Bulinus as an ancient divergent taxon, whatever its taxonomic rank. The gene order of (A) Bulinus globosus [14], Bulinus nasutus [14], and Bulinus ugandae [14]; (B) Biomphalaria choanomphala [13], Biomphalaria glabrata [47], Biomphalaria pfeifferi [13], Biomphalaria straminea [13], Biomphalaria sudanica [13], Bulinus truncatus [13], Planorbella duryi [48] and Planorbella pilsbryi As shown in type A, Bulinus globosus, Bulinus nasutus, and Bulinus ugandae have an identical gene arrangement in their mitogenomes. Bulinus truncatus shares an identical gene arrangement with the six species of Biomphalaria and two species of Planorbella as type B, which is the most common gene arrangement in ramshorn snails.…”