Decapod phylogeny: addition of fossil evidence to a robust morphological cladistic data set (project)

Schram, R; Dixon, Jean M.

doi:10.7934/p1023

Cited by 17 publications

(38 citation statements)

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“…The present results reveal Caridea occupying the basal position in Pleocyemata and with Stenopodidea and Reptantia forming a sister clade. This is identical to some morphological cladistic analyses (Scholtz and Richter, 1995;Dixon et al, 2003;Schram and Dixon, 2004) and support the morphological scheme proposed by Abele and Felgenhauer (1986). In this study, Anomura and Brachyura form a monophyletic clade, which is widely accepted as a natural group named Meiura, supported by both cladistic studies (Scholtz and Richter, 1995;Schram, 2001;Dixon et al, 2003) and molecular data (Miller and Austin, 2006;Ivey and Santos, 2007;Shen et al, 2007).…”

Section: Phylogenetic Analysissupporting

confidence: 91%

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Complete mitochondrial DNA sequence of Stenopus hispidus (Crustacea: Decapoda: Stenopodidea) and a novel tRNA gene cluster

Shi¹,

Liu²,

Sha³

et al. 2012

Marine Genomics

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Section: Phylogenetic Analysissupporting

confidence: 91%

“…4). However, morphological cladistic analyses mostly reveal Stenopodidea and Reptantia form a clade sister to Caridea (Abele and Felgenhauer, 1986;Scholtz and Richter, 1995;Dixon et al, 2003;Schram and Dixon, 2004). On the other hand, recent molecular data yield contrasting results.…”

Section: Phylogenetic Analysismentioning

confidence: 99%

Complete mitochondrial DNA sequence of Stenopus hispidus (Crustacea: Decapoda: Stenopodidea) and a novel tRNA gene cluster

Shi¹,

Liu²,

Sha³

et al. 2012

Marine Genomics

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“…The classification scheme of mud shrimps have been in flux at all levels. They are often considered to be a monophyletic group up to the rank of infraorder, i.e., Thalassinidea [9-16]. According to different authors, these animals have been treated under Anomura [17-21], as an independent group within the Reptantia [10,11,14,22,23], or aligned with the lobsters [24].…”

Section: Introductionmentioning

confidence: 99%

“…According to different authors, these animals have been treated under Anomura [17-21], as an independent group within the Reptantia [10,11,14,22,23], or aligned with the lobsters [24]. While some authors [25-29] had long questioned the monophyly of Thalassinidea and divided it into two groups (namely Gebiidea and Axiidea), the monophyly of Thalassinidea has been supported by some morphological cladistic analyses [9,10,12,14,16], molecular data [11,30] or combined morphological and molecular analysis [15]. Nevertheless, the latest molecular analyses [3-8] mostly concur in the separation of Thalassinidea.…”

Section: Introductionmentioning

confidence: 99%

Evolution and phylogeny of the mud shrimps (Crustacea: Decapoda) revealed from complete mitochondrial genomes

et al. 2012

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Background: The evolutionary history and relationships of the mud shrimps (Crustacea: Decapoda: Gebiidea and Axiidea) are contentious, with previous attempts revealing mixed results. The mud shrimps were once classified in the infraorder Thalassinidea. Recent molecular phylogenetic analyses, however, suggest separation of the group into two individual infraorders, Gebiidea and Axiidea. Mitochondrial (mt) genome sequence and structure can be especially powerful in resolving higher systematic relationships that may offer new insights into the phylogeny of the mud shrimps and the other decapod infraorders, and test the hypothesis of dividing the mud shrimps into two infraorders.Results: We present the complete mitochondrial genome sequences of five mud shrimps, Austinogebia edulis, Upogebia major, Thalassina kelanang (Gebiidea), Nihonotrypaea thermophilus and Neaxius glyptocercus (Axiidea). All five genomes encode a standard set of 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes and a putative control region. Except for T. kelanang, mud shrimp mitochondrial genomes exhibited rearrangements and novel patterns compared to the pancrustacean ground pattern. Each of the two Gebiidea species (A. edulis and U. major) and two Axiidea species (N. glyptocercus and N. thermophiles) share unique gene order specific to their infraorders and analyses further suggest these two derived gene orders have evolved independently. Phylogenetic analyses based on the concatenated nucleotide and amino acid sequences of 13 protein-coding genes indicate the possible polyphyly of mud shrimps, supporting the division of the group into two infraorders. However, the infraordinal relationships among the Gebiidea and Axiidea, and other reptants are poorly resolved. The inclusion of mt genome from more taxa, in particular the reptant infraorders Polychelida and Glypheidea is required in further analysis. Conclusions: Phylogenetic analyses on the mt genome sequences and the distinct gene orders provide further evidences for the divergence between the two mud shrimp infraorders, Gebiidea and Axiidea, corroborating previous molecular phylogeny and justifying their infraordinal status. Mitochondrial genome sequences appear to be promising markers for resolving phylogenetic issues concerning decapod crustaceans that warrant further investigations and our present study has also provided further information concerning the mt genome evolution of the Decapoda.

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“…So far, all the carcinonemertids are symbiotic egg predators of Achelata, Anomura, and Brachyura (Jensen and Sadeghian 2005), suggesting that the ancestors of Carcinonemertidae acquired their egg-predatory life style after the host reptantic decapods split from other pleocyemates (i.e., Caridea and Stenopodidea, after Bracken et al 2009). Fossil records indicate that a radiation of decapods occurred in Triassic–Jurassic (Schram and Dixon 2004). Therefore, carcinonemertids may also have radiated in this period at the earliest.…”

Section: Discussionmentioning

confidence: 99%

Ovicides paralithodis (Nemertea, Carcinonemertidae), a new species of symbiotic egg predator of the red king crab Paralithodes camtschaticus (Tilesius, 1815) (Decapoda, Anomura)

Kajihara

Kuris²

2013

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Ovicides paralithodis sp. n. is described from the egg mass of the red king crab Paralithodes camtschaticus (Tilesius, 1815) from the Sea of Okhotsk, off Hokkaido, Japan, and Alaska, USA. Among four congeners, Ovicides paralithodis can be distinguished from Ovicides julieae Shields, 2001 and Ovicides davidi Shields and Segonzac, 2007 by having no eyes; from Ovicides jonesi Shields and Segonzac, 2007 by the presence of basophilic, vacuolated glandular lobes in the precerebral region; and from Ovicides jasoni Shields and Segonzac, 2007 by the arrangement of the acidophilic submuscular glands, which are not arranged in a row. Ovicides paralithodis represents the third described species of egg-predatory nemertean from Paralithodes camtschaticus, the second described carcinonemertid species from Japan, and the 21st described species in the family. The intensity of infestations may exceed 24,000 worms per a single egg-bearing pleopod of Paralithodes camtschaticus. A preliminary molecular phylogenetic analysis based on sequences of 28S rRNA and cytochrome c oxidase subunit I genes among selected monostiliferous hoplonemertean species supported the monophyly of Carcinonemertidae, suggesting that within the lineage of the family, evolution of the unique vas deferens, Takakura’s duct, preceded loss of accessory stylets and accessory-stylet pouches.

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Decapod phylogeny: addition of fossil evidence to a robust morphological cladistic data set (project)

Cited by 17 publications

References 0 publications

Complete mitochondrial DNA sequence of Stenopus hispidus (Crustacea: Decapoda: Stenopodidea) and a novel tRNA gene cluster

Complete mitochondrial DNA sequence of Stenopus hispidus (Crustacea: Decapoda: Stenopodidea) and a novel tRNA gene cluster

Evolution and phylogeny of the mud shrimps (Crustacea: Decapoda) revealed from complete mitochondrial genomes

Ovicides paralithodis (Nemertea, Carcinonemertidae), a new species of symbiotic egg predator of the red king crab Paralithodes camtschaticus (Tilesius, 1815) (Decapoda, Anomura)

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