Phylogeny, phylogeography, and systematics of the American pea crab genus<i>Calyptraeotheres</i> Campos, 1990, inferred from molecular markers

Ocampo, Emiliano Hernan; Robles, Rafael; Terossi, Mariana; Núñez, Jesús; Cledón, Maximiliano; Mantelatto, Fernando L.

doi:10.1111/zoj.12045

Cited by 16 publications

(7 citation statements)

References 84 publications

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“…This temporal pattern coincides with both the expansions calculated from mismatch and EBSP analyzes. A similar population expansion was also suggested for two Caribbean squirrelfishes (Bowen, Bass, Muss, Carlin, & Robertson, 2006), for a corallivorous mollusk (Johnston et al, 2012), for a sea urchin (Lessios et al, 2003), and for a pea crab (Ocampo et al, 2013). This expansion might be linked to an increase in habitat availability during interglacial periods.…”

Section: Quaternary Climatic Oscillationssupporting

confidence: 64%

Highly contrasted population genetic structures in a host–parasite pair in the Caribbean Sea

Jossart

Ridder

Lessios

et al. 2017

Ecology and Evolution

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Evolution and population genetic structure of marine species across the Caribbean Sea are shaped by two complex factors: the geological history and the present pattern of marine currents. Characterizing and comparing the genetic structures of codistributed species, such as host–parasite associations, allow discriminating the relative importance of environmental factors and life history traits that influenced gene flow and demographic events. Using microsatellite and Cytochrome Oxidase I markers, we investigated if a host–parasite pair (the heart urchin Meoma ventricosa and its parasitic pea crab Dissodactylus primitivus) exhibits comparable population genetic structures in the Caribbean Sea and how the observed patterns match connectivity regions from predictive models and other taxa. Highly contrasting patterns were found: the host showed genetic homogeneity across the whole studied area, whereas the parasite displayed significant differentiation at regional and local scales. The genetic diversity of the parasitic crabs (both in microsatellites and COI) was distributed in two main groups, Panama–Jamaica–St Croix on the one hand, and the South‐Eastern Caribbean on the other. At a smaller geographical scale, Panamanian and Jamaican parasite populations were genetically more similar, while more genetic differentiation was found within the Lesser Antilles. Both species showed a signature of population expansion during the Quaternary. Some results match predictive models or data from previous studies (e.g., the Western‐Eastern dichotomy in the parasite) while others do not (e.g., genetic differentiation within the Lesser Antilles). The sharp dissimilarity of genetic structure of these codistributed species outlines the importance of population expansion events and/or contrasted patterns of gene flow. This might be linked to differences in several life history traits such as fecundity (higher for the host), swimming capacity of larval stages (higher for the parasite), and habitat availability (higher for the host).

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Section: Quaternary Climatic Oscillationssupporting

confidence: 64%

Highly contrasted population genetic structures in a host–parasite pair in the Caribbean Sea

Jossart

Ridder

Lessios

et al. 2017

Ecology and Evolution

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“…Most of them found a pattern of population expansion similar to the one detected with mtDNA in E. maclovinus. Common features are shallow geographic structure, star-like haplotype network, unimodal mismatch distribution and lack of a pattern of isolation by distance (Cárdenas et al, 2009;de Aranzamendi et al, 2011;González-Wevar et al, 2012;Ocampo et al, 2013;Hüne et al, 2014;Pérez-Barros et al, 2014). However, some species show signs of recent population expansion, also in conjunction with geographic breaks (Fraser et al, 2010;Sánchez et al, 2011;Nuñez et al, 2015), highlighting the great variance in species' abilities to respond to the environmental change associated with glacial cycles.…”

Section: Discussionmentioning

confidence: 99%

Genetic relationships between Atlantic and Pacific populations of the notothenioid fish Eleginops maclovinus: the footprints of Quaternary glaciations in Patagonia

et al. 2015

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The genetic relationships between the Pacific and the Atlantic populations of marine coastal biota in Southern South America have been analyzed in few studies, most of them relying on a single mitochondrial locus. We analyzed 10 polymorphic microsatellite loci, isolated from a dinucleotide-enriched Eleginops maclovinus genomic library, in a total of 240 individuals (48 from each of 5 sampled sites: 2 Atlantic, 2 Pacific and 1 in Beagle Channel). The results were contrasted against a previous work on the same species with mitochondrial DNA (mtDNA). Observed heterozygosity within localities ranged from 0.85 to 0.88 with the highest overall number of alleles observed at the northernmost locality on the Pacific side (Concepción), but no clear geographic pattern arose from the data. On the other hand, the number of private alleles was negatively correlated with latitude (Spearman's r s test, P = 0.017). Among-population variance was low but significant (1.35%; Po0.0001, analysis of molecular variance (AMOVA)) and low genetic differentiation between populations was observed (pairwise F ST values ranged from 0 to 0.021). A Mantel test revealed a significant correlation between geographic distances and F ST (r = 0.56, P = 0.047). This could be partially accounted by the Atlantic versus Pacific population differentiation detected in three different analyses (STRUCTURE, SAMOVA (Spatial Analysis of MOlecular VAriance) and a population phylogeny). The observed pattern is compatible with a history of separation into two glacial refugia that was better captured by the multilocus microsatellite data than by the mtDNA analysis.

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“…Despite the fact that the acceptance to work with a single molecular marker as a precise character to define a species was discussed ( Will & Rubinoff, 2004 ), nowadays it is considered that the COI marker is the best for decapod identification ( Spielmann et al, 2019 ). The utility of DNA Barcoding (COI sequence) has been useful to delimit species of pinnotherids ( Ocampo et al, 2013 ; Perez-Miguel et al, 2019 ), brachyuran larvae ( Brandão, Freire & Burton, 2016 ) and other crustaceans ( Costa et al, 2007 ; Matzen da Silva et al, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Holothuriophilus trapeziformisNauck, 1880 (Decapoda: Pinnotheridae) from the Pacific coast of Mexico: taxonomic revision based on integrative taxonomy

Cortés-Carrasco

Elías‐Gutiérrez

García-Madrigal

2022

PeerJ

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Background Holothuriophilus trapeziformis Nauck, 1880 is a holothurian-dweller pinnotherid crab representing one of the two species of the genus distributed along the Pacific coast of Mexico and Chile, respectively. While the parasitic ecological interaction with its host is well established, the morphology of the male remains unknown, and DNA information for the species is not available. Furthermore, the only morphological trait separating both species of the genus is subjective and corresponds to the presence or absence of a gap between the fingers of the chelae. Our goal is to complete and clarify the taxonomic status of H. trapeziformis and describe the male morphology with the use of the integrative taxonomy, providing additional characters to differentiate this species. Methods We collected new biological material in the Pacific coast of Mexico including the topotypes. We also reviewed material from national collections to integrate morphology (based on a complete and detailed description and illustration of the species using light microscopy), ecological data (based on the identification of the host and the place where it was located within the host), and the mtCOI gene information (commonly known as DNA barcode) to differentiate Holothuriophilus trapeziformis from other related crabs. Results This species presents marked sexual dimorphism only in the primary sexual characters. For the first time we describe morphological variability of traditionally stable characters. In addition to the gap between the fingers of the chelae, Holothuriophilus trapeziformis differs from H. pacificus (Poeppig, 1836) by their ornamentation, the shape of the male abdomen, and the gonopod. Cytocrome Oxidase 1 gene (COI) distance divergence was >3% between both Holothuriophilus species forming a clear clade. DNA barcoding indicates only one taxon, with a maximum divergence of 2.2%. All the specimens have the same Barcode Index Number (BIN; BOLD: ADE9974). All the hosts for H. trapeziformis were identified as Holothuria (Halodeima) inornata Semper, 1868; the presence of the crab in the host’s coelomic cavity was confirmed, and for the first time we found it within the intestine. The geographical distribution is the Pacific coast of Mexico. Based on the data presented here, the taxonomic status of Holothuriophilus trapeziformis is now complete.

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Phylogeny, phylogeography, and systematics of the American pea crab genusCalyptraeotheres Campos, 1990, inferred from molecular markers

Cited by 16 publications

References 84 publications

Highly contrasted population genetic structures in a host–parasite pair in the Caribbean Sea

Highly contrasted population genetic structures in a host–parasite pair in the Caribbean Sea

Genetic relationships between Atlantic and Pacific populations of the notothenioid fish Eleginops maclovinus: the footprints of Quaternary glaciations in Patagonia

Holothuriophilus trapeziformisNauck, 1880 (Decapoda: Pinnotheridae) from the Pacific coast of Mexico: taxonomic revision based on integrative taxonomy

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