Molecular phylogeny of Ostracoda (Crustacea) inferred from 18S ribosomal DNA sequences: implication for its origin and diversification

  title={Molecular phylogeny of Ostracoda (Crustacea) inferred from 18S ribosomal DNA sequences: implication for its origin and diversification},
  author={Shigetaka Yamaguchi and Kazuyoshi Endo},
  journal={Marine Biology},
Nucleotide sequences for the 18S rDNA of 17 ostracod species, representing 4 extant orders and 12 superfamilies, were determined and compared with known sequences of other crustaceans. Resulting molecular phylogenetic trees based on maximum-likelihood, maximum-parsimony, and neighbor-joining methods consistently indicated that the Podocopida plus Platycopida forms a monophyletic group, but did not indicate monophyly of the Ostracoda consisting of the four orders, Podocopida, Platycopida… 

Molecular Phylogeny of Cypridoid Freshwater Ostracods (Crustacea: Ostracoda), Inferred from 18S and 28S rDNA Sequences

The authors' analyses showed monophyly for Cyprididae, one of the four families currently recognized in Cypridoidea, and proposed restricting the name Candonidae s.

On the phylogenetic position of Pseudophilomedinae within Sarsielloidea (Ostracoda, Myodocopida), with a description of one new Harbansus from Ningaloo Reef and redescription of H. paucichelatus from Yucatan

  • Ivana KaranovicLorena Orduña-MartínezPedro-Luis Ardisson
  • Biology
    Helgoland Marine Research
  • 2014
Molecular phylogenetic analyses based on 18S r DNA and 28S rDNA support previously suggested polyphyly, indicating a closer relationship of the subfamily Pseudophilomedinae with one subfamily of Sarsiellidae than with the nominotypical sub family of Philomedidae.

Phylogeny of Kinorhyncha Based on Morphology and Two Molecular Loci

The phylogeny of Kinorhyncha was analyzed using morphology and the molecular loci 18S rRNA and 28S r RNA, and Bayesian inference of molecular sequence data in combination with morphology supported the division of Kinorschyncha into two major clades: Cyclorhagida comb.

Molecular Systematics of Tanaidacea (Crustacea: Peracarida) Based on 18S Sequence Data, with an Amendment of Suborder/Superfamily-Level Classification

The molecular results strongly supported a monophyletic group composed of Neotanaidae, Tanaoidea, and ParatanaoideA, with the first two taxa forming a clade, which contradict three previously suggested hypotheses of relationships.

Molecular phylogeny of interstitial Polycopidae ostracods (Crustacea) and descriptions of a new genus and four new species

The 18S gene proved to be suitable for phylogenetic analyses in polycopids with high intraspecific or intrageneric resolution and was supported in the divergence between Kliecope and Parapolycope with high bootstrap values.

Molecular phylogeny of kinorhynchs.

Four new Parasterope (Ostracoda, Myodocopina) from the Northwest Pacific and their phylogeny based on 16S rRNA

Monophyly of Parasterope is supported by high posterior probabilities, but the phylogenetic analyses also indicate that some of the GenBank data attributed to this genus are probably misidentifications, so a phylogenetic tree is reconstructed based on partial 16S rRNA sequences of the four new species and other Cylindroleberidinae available from GenBank.

Two new xylophile cytheroid ostracods (Crustacea) from Kuril-Kamchatka Trench, with remarks on the systematics and phylogeny of the family Keysercytheridae, Limnocytheridae, and Paradoxostomatidae

A transfer of Redekea from Paradoxostomatidae to Keysercytheridae, and erecting of the two limnocytherid subfamilies onto the family level is proposed, albeit with a low posterior probability, requiring further studies to clarify this.

Trilobodrilus itoi sp. nov., with a Re-Description of T. nipponicus (Annelida: Dinophilidae) and a Molecular Phylogeny of the Genus

Molecular phylogenetic trees based on concatenated sequences of the three genes showed that T. itoi and T. nipponicus form a clade, which was the sister group to aClade containing the two European congeners T. axi Westheide, 1967 and T .

Tetraconatan phylogeny with special focus on Malacostraca and Branchiopoda: highlighting the strength of taxon-specific matrices in phylogenomics

A taxon-rich phylogenomic dataset focusing on crustacean lineages based solely on genomes and new-generation Illumina-generated transcriptomes, including 89 representatives of Tetraconata is assembled, which constitutes, to the authors' knowledge, the first phylogenomic study specifically addressing internal relationships of Malacostraca and Branchiopoda.



Phylogeny of Selected Maxillopodan and Other Crustacean Taxa Based on 18S Ribosomal Nucleotide Sequences: A Preliminary Analysis

The analyses suggest that acrothoracicans diverged very early from the cirripede line and are not derived from a lepadomorph-like ancestor; branchiurans are not related to either copepods or thecostracans but are closely allied with pentastomes; and the Maxillopoda, broadly defined, is not a monophyletic taxon.

Crustacean phylogeny inferred from 18S rDNA

Resolution concerning issues of higher-order crustacean phylogeny remains elusive even after years of thorough morphological and palaeontological scrutiny. Surprisingly, there is as yet no consensus

Phylogeny, ontogeny & morphology of living and fossil Thaumatocypridacea (Myodocopa: Ostracoda)

It is hypothesized that during the Jurassic period, representatives of the Thaumatocyprididae lived on the continental shelves of what is now Europe; then, after the Jurassic, the group migrated down the continental slope in response to competitive pressures.

Can the Cambrian explosion be inferred through molecular phylogeny

It is observed that the major lines of triploblast coelomates (arthropods, molluscs, echinoderms, chordates...) are very poorly resolved i.e. the nodes defining the various clades are not supported by high bootstrap values.

Appendages of the arthropod Kunmingella from the early Cambrian of China: Its bearing on the systematic position of the Bradoriida and the fossil record of the Ostracoda

It is demonstrated that this genus, and by implication other taxonomically allied bradoriids in general, are neither ostracode, crustacean s.str.

Queensland Middle Cambrian Bradoriida (Crustacea): new taxa, palaeobiogeography and biological affinities

Two new genera of phosphatic bradoriids are described from the insoluble residues of Middle Cambrian limestones from two sites in the Georgina Basin: Oepikaluta and Flemingia, and Monasteriidae for Monasterium.

The Upper Cambrian Rehbachiella and the phylogeny of Branchiopoda and Crustacea

This study on Rehbachiella supports the monophyly of the crown-group Crustacea and reveals that only the first maxilla was morphologically and functionally included into the crustacean head, while subsequent limbs were addted to the head in a stepwise manner and became modified separately within the different crustacea lineages, which is of great relevance when evaluating the relationships between these.

The Early Cambrian colonization of pelagic niches exemplified by Isoxys (Arthropoda)

The anatomy of the bivalved arthropod Isoxys is reconstructed, based on new evidence from soft parts and exoskeletal design and on a critical review of previous work, and indicates that arthropods had already colonized midwater niches by the Early Cambrian.


Middle Cambrian Archaeocopida (Sylvester-Bradley 1961) are described. They are characterized by a shell consisting of three layers and the presence of pore canals. The attribution of this group to

The Upper CambrianRehbachiella, its larval development, morphology and significance for the phylogeny of Branchiopoda and Crustacea

The monograph on the 500 million-year-old Rehbachiella from the Upper Cambrian ‘Orsten’ of Sweden comprises a detailed description of its larval sequence and a discussion of functional and comparative aspects of its morphology and ontogeny.