Phylogeny of eriphioid crabs (Brachyura, Eriphioidea) inferred from molecular and morphological studies

Abstract

2014). Phylogeny of eriphioid crabs (Brachyura, Eriphioidea) inferred from molecular and morphological studies.-Zoologica Scripta, 43, 52-64. The evolutionary relationships of the brachyuran crab superfamily Eriphioidea, commonly known as stone or rubble crabs, are examined. Analysis of three mitochondrial (12S, 16S and COI) and two nuclear loci (18S and Histone 3) was carried out for 51 taxa representing the Carpilioidea, Dairoidea, Eriphioidea, Goneplacoidea, Parthenopoidea, Pilumnoidea, Portunoidea, Pseudozioidea and Xanthoidea. Phylogenetic analyses of molecular data used three methods of inference that recovered similar topologies with minor differences. Maximum parsimony analysis of 20 morphological characters taken from first zoeas of 11 species yielded two equally parsimonious trees and generally supported the molecular analyses. None of the analyses recovered Eriphioidea as monophyletic, and each of the eriphioid families represented by two or more taxa was shown to be polyphyletic in both molecular and larval analyses. This study indicates that the present classification based on adult morphology is incongruent with phylogenetic relationships and that the diagnostic characters the result of convergence (particularly in feeding morphology) rather than shared ancestry.

The complete mitochondrial genome of rubble crab Daldorfia horrida (Linnaeus, 1758) using next-generation sequencing

“…The result (Figure 1) showed that D. horrida is first clustered with Pseudocarcinus gigas and Myomenippe fornasinii, which revealed that Parthenopoidea is closer with Eriphioidea in Heterotremata. It is generally consistent with some previous studies (Lai et al 2014;Basso et al 2017;Tan et al 2018).…”

Evolutionary relationships among American mud crabs (Crustacea: Decapoda: Brachyura: Xanthoidea) inferred from nuclear and mitochondrial markers, with comments on adult morphology

“…Although the composition of Xanthoidea has often been debated, several recent phylogenetic analyses support a monophyletic Xanthoidea sensu Ng et al . () (Thoma et al ., ; Lai et al ., , ; Lasley et al ., ). These reports, and other unpublished analyses, support the present selection of outgroup taxa including Eriphia gonagra (Fabricius, ), Lobopilumnus agassizii Stimpson, 1871 (Stimpson, 1871b), Menippe mercenaria (Say, ), and Acidops fimbriatus Stimpson, 1871 (Stimpson, 1871a), as these taxa have been shown to be related to but outside of Xanthoidea sensu Ng et al .…”

Phylogeographic and evolutionary history analyses of the warty crab Eriphia verrucosa (Decapoda, Brachyura, Eriphiidae) unveil genetic imprints of a late Pleistocene vicariant event across the Gibraltar Strait, erased by postglacial expansion and admixture among refugial lineages

“…In order to reliably elucidate the evolutionary history of E. verrucosa , we specifically estimated the mutation rate of the Cox1 gene referring to the already surveyed phylogeny of the genus Eriphia by Lai et al [86], whose findings suggest congruence between geography and phylogeny in Eriphia . We, therefore, implemented a calibration point derived from the biogeographic event of the Pleistocene glacial sea-level low stands, assuming that the vicariant speciation of Indian and Indo-West Pacific species of the genus Eriphia might have been triggered by the impact of dry exposure of the Sunda Shelf at the onset of the Pleistocene glaciation cycles which occurred approximately 2.588 million years ago (± 0.005) [87, 88].…”

“…Before proceeding with the analysis, selection of the best-fit substitution model for the data was carried out with MODELTEST version 3.7 [90]. Cox1 sequences, corresponding to the eight examined species of the genus Eriphia by Lai et al [86] (GenBank accession numbers: HM638034-HM638038; KC771023-KC771024; KC962408) as well as to the haplotypes retrieved in our study, were used in the analysis. The two parameter Birth-Death model (considered as an appropriate null model for species diversification [91]), along with an uncorrelated lognormal relaxed clock, were used as priors for the analysis.…”