Related Experiment Video
Updated: Aug 20, 2026

A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
Published on: July 11, 2025
A molecular phylogenetic study of the freshwater talitrid amphipod Orchestia cavimana (Crustacea)
Domenico Davolos1, Norman Maclean, Biancamaria Pietrangeli
1University of Southampton, Division of Biodiversity and Ecology, Bassett Crescent East, UK. davolos.it@libero.it
Abstract:
In this paper we performed a molecular phylogenetic study of Orchestia cavimana, the sole talitrid amphipod inhabiting beaches of European freshwater lakes and rivers. For that purpose, we have PCR amplified and sequenced regions of the mitochondrial cytochrome oxidase subunit I (COI) gene, basing our analysis on both nucleotide and amino acid sequences and considering also structural classes of the COI enzyme. Phylogenetic analyses were conducted by neighbour-joining (NJ) and maximum-parsimony (MP) methods comparing homologous sequences of talitrids and other Crustacea. In both NJ and MP trees, O. cavimana shows a basal placement with respect to other talitrid amphipods.
Related Concept Videos
Diversity of Protists III
Microbial Phylogeny
Applications of Molecular Taxonomy
Diversity of Protists IV
Evolutionary Relationships through Genome Comparisons
Modern Molecular Taxonomy

