Description of the first zoea of Domecia glabra Alcock, 1899 (Crustacea: Brachyura, Domeciidae) and implications for the systematics of the Trapezioidea

Clark, Paul F.; Ng, Peter K. L.

doi:10.2988/10-17.1

Cited by 2 publications

(6 citation statements)

References 34 publications

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“…However, D. acanthophora presents two subterminal seta on the distal endopod segment of the maxillule and one subterminal seta on the distal endopod lobe of the maxilla. Thus, these features contradict the synapomorphies mentioned above, since they differ from observed by Clark and Ng (2010).…”

Section: Discussioncontrasting

confidence: 46%

“…As previously discussed by Clark and Guerao (2008) and Clark and Ng (2010), Calocarcinus Calman, 1909 appears not to be related to the trapezioids. However, a similar morphological characteristic was observed for C. africanus and D. acanthophora: the presence of three pairs of lateral spines on the carapace.…”

Section: Discussionmentioning

confidence: 53%

“…According to Clark and Ng (2010), the characters that separate the early stages of zoeae of the species of superfamily Trapezioidea are: the spinulation of the antennal protopod, the terminal setation of the antennule, the setation of the maxillule, maxilla, first and second maxillipeds, and medial and dorsolateral processes of the abdominal somites (see Tab. 1).…”

Section: Discussionmentioning

confidence: 99%

“…According to phylogenetic analysis, Clark and Ng (2010) suggested that the genera Domecia, Quadrella Dana, 1851, Tetralia Dana, 1851and Trapezia Latreille, 1828 are nested in one clade that is defined by the absence of seta 3.5 and seta 3.4 on the third endopodal segment of the second maxilliped (for details, see Clark and Guerao, 2008), and should be according to a synapomorphy defines the Domecia + Tetralia + Trapezia clade: the presence of one subterminal seta on the distal endopod segment of the maxillule (vs. two subterminal setae). Other synapomorphies define the sister group Domecia + Tetralia, including: the absence of a subterminal seta on the distal endopod lobe of the maxilla; and the absence of dorsolateral process on abdominal somites fourth and fifth (Clark and Ng, 2010). However, D. acanthophora presents two subterminal seta on the distal endopod segment of the maxillule and one subterminal seta on the distal endopod lobe of the maxilla.…”

Section: Discussionmentioning

confidence: 99%

“…In recent decades, several studies about the morphology of larval stages have been used to elucidate the taxonomic status of these crabs, of which there is still no consensus with respect to the superfamily Trapezioidea (e.g., Clark and Guerao, 2008;Clark and Ng, 2010). About 60 species of the superfamily Trapezioidea are known (see Ng et al, 2008), but the morphology of the first zoeal stage is described only for 14 species (see Tab.…”

Section: Introductionmentioning

confidence: 99%

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First zoeal stage of the crab Domecia acanthophora (Desbonne, in Desbonne & Schramm, 1867) (Decapoda, Brachyura) and revision of the larval morphology of superfamily Trapezioidea

et al. 2016

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Th e morphology of the fi rst zoeal stage of Domecia acanthophora (Desbonne, in Desbonne & Schramm, 1867) was described from laboratory-hatched material obtained from ovigerous females collected at Vitória Island on the southeastern Brazilian coast. We compared the larval morphology (zoea I) of fourteen species of the superfamily Trapezioidea, which Domecia glabra Alcock, 1899 is the only congeneric representative of the species described in this study. The morphological characteristics of the first zoea that distinguish D. acanthophora from D. glabra are: three aesthetascs on the exopod antennule; three pairs of lateral spines on carapace; bilobed basial endite of maxilla, with four plumodenticulate setae on each lobe; and telson furcae distally spinulated. It also provides information that may enhance some phylogenetic hypotheses within Trapezioidea crabs.

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Section: Discussioncontrasting

confidence: 46%

Section: Discussionmentioning

confidence: 53%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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First zoeal stage of the crab Domecia acanthophora (Desbonne, in Desbonne & Schramm, 1867) (Decapoda, Brachyura) and revision of the larval morphology of superfamily Trapezioidea

et al. 2016

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Genomic survey sequencing and complete mitochondrial genome of the elkhorn coral crab Domecia acanthophora (Desbonne in Desbonne & Schramm, 1867) (Decapoda: Brachyura: Domeciidae)

Bravo,

Baeza,

van der Meij

2023

Journal of Crustacean Biology

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The elkhorn coral crab Domecia acanthophora inhabits shallow-water coral reefs in the Western Atlantic. The species has a wide distribution and, although primarily associated with endangered Acropora corals, has been recorded from a myriad of hosts. Here we conducted the first genomic survey and complete mitochondrial assemblage and characterisation of any species of Domeciidae, as well as the first species within Trapezioidea. The estimated size of the nuclear genome ranged from 0.64 Gbp to 1.76 Gbp, revealing a small genome. Repetitive elements of the genome were estimated here at 66.4% and 74%, respectively, with the majority of the repetitive elements consisting of LINE, LTR, and satellite DNA. The assembled A-T rich mitochondrial genome consisted of 15,568 bp in length, with 13 protein-coding genes (PCGs), 22 transfer RNA (tRNA) genes and two ribosomal RNA (rRNA) genes. A 619 bp long non-coding region was identified as the supposed D-loop/control region, containing eight microsatellites. The 22 tRNA genes, ranging from 65 to 71 bp in length, displayed a typical “cloverleaf” secondary structure, with the exception of tRNA-Ser1 which lacked part of the DHU arm and tRNA-Asp displayed a deletion of the TΨC loop but not the arm. Two transposition events of two tRNA genes were also found when comparing the gene order of D. acanthophora to that of the brachyuran basic gene order, which had not been reported before. Despite belonging to a widely distributed, well-known superfamily of coral-associated crabs, the Trapezioidea, very little was known about this species from a genetics perspective, which is remedied here by providing a new genomic resource for D. acanthophora.

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Description of the first zoea of Domecia glabra Alcock, 1899 (Crustacea: Brachyura, Domeciidae) and implications for the systematics of the Trapezioidea

Cited by 2 publications

References 34 publications

First zoeal stage of the crab Domecia acanthophora (Desbonne, in Desbonne & Schramm, 1867) (Decapoda, Brachyura) and revision of the larval morphology of superfamily Trapezioidea

First zoeal stage of the crab Domecia acanthophora (Desbonne, in Desbonne & Schramm, 1867) (Decapoda, Brachyura) and revision of the larval morphology of superfamily Trapezioidea

Genomic survey sequencing and complete mitochondrial genome of the elkhorn coral crab Domecia acanthophora (Desbonne in Desbonne & Schramm, 1867) (Decapoda: Brachyura: Domeciidae)

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