Gammarus: Important Taxon in Freshwater and Marine Changing Environments

Gerhardt, Almut; Bloor, Michelle; Mills, Chris

doi:10.1155/2011/524276

Cited by 44 publications

(37 citation statements)

References 82 publications

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“…As its related morphospecies Gammarus pulex and Gammarus fossarum, G. roeselii is widespread in European continental freshwaters (Karaman & Pinkster, 1977), playing a key functional role in the ecosystem, through leaf litter recycling (Piscart et al, 2007). In addition, G. roeselii is often used in multitopic research at the crossroads of ecophysiology, ecotoxicology, biological invasions, behavioral ecology and evolutionary parasitology (Haine et al, 2005;Moret et al, 2007;Tain et al, 2007;Sornom et al, 2010;Gerhardt et al, 2011;Böttger et al, 2012;Gismondi et al, 2012aGismondi et al, , b, c, 2013Gergs et al, 2013;Andreï et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2018

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Section: Introductionmentioning

confidence: 99%

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

et al. 2018

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“…Gammarids are very important constituents of food chains in running waters, and are even being dried and commercially offered as fish food for aquaria or fisheries. A journal issue was devoted to the biology of Gammarus recently (Gerhardt, Bloor & Mills, 2011).…”

Section: Introductionmentioning

confidence: 99%

A review of Gammaridae (Crustacea: Amphipoda): the family extent, its evolutionary history, and taxonomic redefinition of genera

Hou

Ŝket

2015

Zool J Linn Soc

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By molecular analysis of a high number of gammarids, including 29 out‐group genera, we could assure the monophyly of Gammaridae. To avoid the paraphyly of the family, we propose the omission of Pontogammaridae, Typhlogammaridae, and all Baikalian families. Similarly, the genera Fontogammarus, Sinogammarus, Lagunogammarus, Pephredo, Neogammarus, and Laurogammarus may be cancelled. But, tens of Baikal genera, nested within Gammarus, are so diverse that they must be retained, although rendering Gammarus paraphyletic. Besides we propose the polyphyletic Echinogammarus–Chaetogammarus group to be divided into monophyletic genera Echinogammarus s. str., Homoeogammarus, Parhomoeogammarus, Marinogammarus, Relictogammarus gen. nov., Chaetogammarus, and Trichogammarus gen. nov. These solutions made it possible to complete the first analysis of the family evolution in light of its phylogeny. Perimarine clades are mainly basally split clades, whereas in some ancient lakes extremely rich endemic faunas had developed polyphyletically. The troglobiotic Typhlogammarus group from Dinarides and Caucasus formed a monophylum, whereas the troglobiotic assemblage of Gammarus species is highly polyphyletic. Reduction of the uropod III endopodite, which classically distinguishes between the genera Gammarus and Echinogammarus, appeared to be highly polyphyletic. Protective dorsal pleonal projections occur scattered across the family and beyond, whereas lateral projections were limited to species of ancient lakes, so both structures were polyphyletic. The evolutionary history of Gammaridae was investigated with ten different calibration schemes, which produced incompatible results; however, the most probable scenario is a late rise of the family, which can only explain the absence of Gammaridae species around the Indo‐Pacific. © 2015 The Linnean Society of London

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“…Mamos et al, 2014;Weiss et al, 2014) that are often used as bioindicators in water quality assessment (e.g. Gerhardt, Bloor & Mills, 2011). Even species closely related and/or very similar in morphology may differ in life-history traits or differ in tolerance towards a variety of environmental factors (e.g.…”

Section: Introductionmentioning

confidence: 99%

Revisiting the phylogeography ofAsellus aquaticusin Europe: insights into cryptic diversity and spatiotemporal diversification

et al. 2015

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Summary Pleistocene glaciations affected the present‐day distribution and genetic diversity of animal species in Europe. Deep genetic subdivisions observed in European populations of the widespread freshwater isopod morphospecies, Asellus aquaticus, suggest the presence of putative cryptic species. We used the DNA barcodes of the cytochrome c oxidase subunit 1 (COI) gene combined with distance‐ and tree‐based methods of species delimitation as a rapid tool for assessing the number of distinct operational taxonomic units (OTUs) representing potential cryptic species. The spatial and demographic aspect of A. aquaticus distribution was also analysed. We generated a tentative temporal framework for diversification within the morphospecies provided by the molecular clock approach. Altogether, our study included 603 COI sequences from 147 populations from all over Europe and Asia Minor, including the already published data deposited in GenBank. The mtDNA‐based phylogenetic and OTU delimitation pattern was assessed with results of the nuclear data set analysis including the sequence data derived from this study and those previously submitted in GenBank. In total, 16 haplotypes of 28S rDNA were used representing all COI‐based OTUs and 53 localities. Our results show that A. aquaticus is a conglomerate of genetically distinct COI OTUs. One of the OTUs seems to correspond to the nominative subspecies of A. aquaticus aquaticus, recently redescribed from Sweden, and another with the recently described A. kosswigi. Most of the OTUs are probably of pre‐Pleistocene origin and have narrow ranges in southern Europe. A recent expansion, in both demographic and spatial terms, was revealed in one OTU, which is widely distributed in Europe and represents A. aquaticus aquaticus. This may be explained by the post‐glacial recolonisation processes. According to our data, this OTU probably emerged and initially diversified in the west Balkans in the Middle/Late Pliocene with several lineages surviving and diversifying through the Pleistocene glaciations and expanding during the interglacials. In some cases, our 28S data support the COI‐based OTUs and provide ample evidence for the existence of distinct OTUs, especially in mountainous and karst areas. However, other COI OTUs are not reciprocally monophyletic with respect to nuclear marker. This phylogenetic pattern can be interpreted predominantly as a result of incomplete sorting of nuclear lineages, potentially indicating an ongoing speciation process, but also as an effect of introgression resulting from secondary contact of formerly peripatric or allopatric mitochondrial lineages.

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Gammarus: Important Taxon in Freshwater and Marine Changing Environments

Cited by 44 publications

References 82 publications

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

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

A review of Gammaridae (Crustacea: Amphipoda): the family extent, its evolutionary history, and taxonomic redefinition of genera

Revisiting the phylogeography ofAsellus aquaticusin Europe: insights into cryptic diversity and spatiotemporal diversification

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