The complete mitochondrial genome of Gammarus roeselii (Crustacea, Amphipoda): insights into mitogenome plasticity and evolution

Abstract

This study presents the complete mitochondrial (mt) genome sequence, annotation and analysis of the amphipod Gammarus roeselii, a crustacean species widespread in European continental freshwaters. The circular mt genome has a total length of 16,073 bp and possesses the 37 canonical mt genes of bilaterians. Particularly noticeable is an unusual case of duplication of the full control region (CR).

The mitochondrial genome of UK (non-native) Dikerogammarus haemobaphes (Amphipoda: Gammaridae) informs upon Dikerogammarus evolution, invasions and associated microparasites

“…The mitochondrial genomes of eukaryotic organisms have been used to infer phylogenetic relationships (Cormier et al, 2018), to understand energy and metabolism (Abele et al, 2007) and to better inform upon the genetic diversity of a population (Ma et al, 2015). Increased availability of mitochondrial data associated with biological invasions can provide a valuable resource to better understand invasion dynamics through population genetics.…”

“…Increased availability of mitochondrial data associated with biological invasions can provide a valuable resource to better understand invasion dynamics through population genetics. This information can be used to determine potential entry points and locate source populations of invasive species (Lallias et al, 2015), to determine the rates of evolution in invaders (Cormier et al, 2018) and cumulatively provide information on the potency of biosecurity and management efforts (Anderson et al, 2015).…”

“…Next generation sequencing platforms and bioinformatic tools provide the ability to rapidly provide data on the genomic composition of the demon shrimp and aid the development of diagnostic tools. Recent advances in the sequencing of mitochondrial genomes from amphipods has also allowed for increased phylogenetic information, with an excess of 50 mitochondrial genomes being available for Amphipoda (Romanova et al, 2016;Macher et al, 2017;Cormier et al, 2018).…”

Different rates of molecular evolution of mitochondrial genes in Baikalian and non-Baikalian amphipods

“…have been sequenced recently from the representatives of both Baikalian species and several species of gen. Gammarus (Krebes and Bastrop, 2012;Romanova et al, 2016;Macher et al, 2017;Cormier et al, 2018;Sun et al, 2020). Since the proteins coded in mitochondrial DNA are not directly involved in morphogenesis, the deviations in the rate of their molecular evolution may serve as an indication of changes in the average rate of molecular evolution in the respective species.…”

Mechanisms of fast transformations of Baikal biota: multidisciplinary approach

“…In general, new possibilities in studies of biodiversity appeared, when high throughput DNA sequencing techniques became feasible for environmental and/ or evolutionary studies of invertebrates, protists and algae (Sauvadet et al, 2010;De Vargas et al, 2015;Leray and Knowlton, 2015). Additionally, the diversity of protists in nature was underestimated significantly, and metagenomics approach was absolutely necessary for describing biodiversity (Leray and Knowlton, 2016).…”