# The complete mitochondrial genome of the widespread freshwater limpet Ferrissia californica

## TL;DR

This paper reports the first complete mitochondrial genome of the freshwater limpet Ferrissia californica and compares it with related species.

## Contribution

The study provides the first annotated mitochondrial genome for Ferrissia californica and explores its phylogenetic relationships.

## Key findings

- The mitochondrial genome of F. californica is 13,526 bp long and includes 13 protein-coding genes.
- Comparisons with other gastropod genomes revealed differences in gene organization.
- Phylogenetic analysis placed F. californica and Laevapex fuscus as sister taxa.

## Abstract

Ferrissia californica (Rowell, 1863) (Gastropoda: Hygrophila: Planorbidae) is a globally distributed freshwater limpet native to North America. Based on the specimens collected in Georgia, we aimed to sequence and annotate the mitochondrial genome of F. californica for the first time. The mt-genome spans 13526 bp containing 13 protein-coding, 2 ribosomal RNA, and 22 transfer RNA genes. Comparisons with the mitochondrial genomes of other gastropod molluscs revealed differences in gene organization. A phylogenetic reconstruction based on 12 protein-coding genes of several representatives from the Planorbidae and Limnaeidae families placed F. californica and Laevapex fuscus (C. B. Adams, 1840) as sister taxa.