Grapsidae Family (Decapoda, Brachyura), Semi-Terrestrial Crabs, in Ecotoxicology: State of Knowledge and New Molecular Biomarker Dataset to Develop Investigations
Year: 2024
Type: article
Abstract: 8 sp.), Leptograpsus H. Milne Edwards, 1853 (1 sp.), Metopograpsus H. Milne Edwards, 1853 (7 sp.), Pachygrapsus Randall, 1840 (12 sp.), and Planes Bowdich, 1825 (2 sp.) ([3]; https://www.marinespecies.org)(Table 1).The molecular phylogeny confirmed that Grapsidae is a monophyletic family [4].Nevertheless, Pachygrapsus, the most diversified genus, is revealed polyphyletic.The polyphyly of Pachygrapsus was also suggested by Wetzer, et al. [5], Schubart [6] and Tsang, et al. [7].The grapsids have a large geographic distribution.Geograpsus, Metopograpsus, and Planes are Indo-Pacific genera.Goniopsis is found in the Atlantic and Pacific Oceans.Grapsus is present in the Atlantic (West-central coast) and Indo-Pacific Oceans.Leptograpsus is observed in the Atlantic, and in the Pacific Oceans and along Australian coasts AbstractThe Grapsidae (Brachyura, Decapoda) family includes 37 crab species, abundant along the coasts (subtidal and intertidal zones) and in mangroves worldwide.Seven genera are defined: Geograpsus, Goniopsis, Grapsus, Leptograpsus, Metopograpsus, Pachygrapsus, and Planes.These crabs have high physiological tolerance to fluctuations of ecological factors and are good accumulators of pollutants.Publications mentioned their use in ecotoxicological investigations in Africa, America, Asia, and Europe.However, the studies using these crabs in ecotoxicology were focused on the contents of the chemical compounds (metals, microplastics…) in their tissues and the measure of the antioxidative enzymatic responses.A putative explanation of this underuse in ecotoxicology as model species of grapsids is a low number of sequences of biomarkers characterised and submitted in international databases.Thus, the objective of this study was to promote the use of Grapsidae in ecotoxicology, 1/ indicating the exhaustive state of knowledge on the investigations carried out and 2/ revealing the characterisation of complete coding sequences of fortyfive molecular biomarkers involved in distinct cellular pathways (antioxidative response, detoxification system, energy reserves, general stress, immunity, neurotoxicity, and reprotoxicity) specifically in the Pachygrapsus marmoratus transcriptome (Atlantic and Mediterranean species); to give to the scientific research community new dataset to develop molecular investigations (gene expression, molecular evolution…) on this species or to identify in other grapsids (using heterologous primers) same molecular biomarkers.
Author: Vincent Leignel
Institution: Le Mans Université
Language: English
Subfield: Ecology
Field: Environmental Science
Domain: Physical Sciences
SDG: Life below water
Open Access status: diamond
OpenAlex ID: W6927545121