The Complete Mitochondrial Genome of the Korean Endemic Polychaete Phyllodoce koreana (Lee & Jae, 1985) from Jindong Bay, Korea, with Additional Morphological and Ecological Features

Journal of Marine Science and Engineering, Journal Year: 2025, Volume and Issue: 13(2), P. 223 - 223

Published: Jan. 25, 2025

Phyllodoce koreana was first described in 1985 Gwangyang Bay, a semi-enclosed bay Korea affected by significant organic input from the Seomjin River and dredging activities near Port. Since then, this Korean endemic species has received limited attention taxonomic ecological studies. is known for its resilience to mild disturbances but vulnerable severe environmental changes. In study, P. specimens were collected organically polluted Asian stalked tunicate aquaculture farms at eight sites Jindong location with conditions similar those of over course five sampling events March November. Both bays experience benthic hypoxia summer due elevated water temperatures matter accumulation. Phyllodocid primarily November 2023, non-hypoxic periods, suggesting potential seasonal adaptations fluctuations. The morphological features consistent original description koreana, confirming their identification. Additionally, we reported previously overlooked details, contributing more comprehensive understanding species. We also present, time, complete mitochondrial genome species, comprising 15,559 bp, which provides essential genetic data future phylogenetic analysis protein-coding genes shows that, among 17 related polychaete (family Phyllodocidae) closely family Goniadidae. Future research should expand our knowledge taxonomy integrating additional genomes investigating role conserved gene synteny within Polychaeta.

Language: Английский

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A Mitogenome-Based Phylogeny of Pilargidae (Phyllodocida, Polychaeta, Annelida) and Evaluation of the Position of Antonbruunia

Diversity, Journal Year: 2024, Volume and Issue: 16(3), P. 134 - 134

Published: Feb. 21, 2024

Pilargidae is a family of free-living and burrowing marine annelids. A lack available molecular data for most these species has precluded assessment their phylogenetic relationships left uncertain the placement Antonbruunia, which hypothesized to be either member or its sister clade, monotypic Antonbruunidae. In this study, we describe new Antonbruunia milenae sp. nov., found at 845 m depth off coast San Diego, California, USA, address phylogeny organisms using 15 novel mitogenomes multiple Sanger-sequenced loci. Our results show that falls within Pilargidae, making Antonbruunidae junior synonym Pilargidae. Glyphohesione was transferred from Pilarginae Synelminae, previously unassigned genera Otopsis were shown belong Hermundura assigned Phyllodocida incertae sedis. Sigambra non-monophyletic. Four different mitogenome gene orders among Changes between ancestral state order inferred. Two have introns COI gene. These efforts represent significant expansion resources pilargids, as well basis more stable taxonomy.

Language: Английский

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First Molecular Phylogeny of Lumbrineridae (Annelida)

Diversity, Journal Year: 2022, Volume and Issue: 14(2), P. 83 - 83

Published: Jan. 25, 2022

Lumbrineridae is a family of marine annelids with simple external morphology but complex and diverse jaw apparatuses consisting paired maxillae mandibles. Here we present the first phylogeny lumbrinerids based on combination nuclear (18S rDNA) mitochondrial (COI, 16S markers utilizing Bayesian inference Maximum Likelihood approaches. Despite limited taxon sampling, our results support monophyly genera Abyssoninoe, Augeneria, Gallardoneris, Lumbrineriopsis, Ninoe indicate polyphyly Lumbrineris (the type genus family) Scoletoma. None morphological characters traditionally used in lumbrinerid systematics, such as presence connecting plates, four pairs maxillae, bidentate hooded hooks, colorless IV, multidentate IV were found to be exclusive homologies for well-supported clade have probably evolved several times independently within Lumbrineridae.

Language: Английский

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Careful amendment of morphological data sets improves phylogenetic frameworks: re-evaluating placement of the fossil Amiskwia sagittiformis

Journal of Systematic Palaeontology, Journal Year: 2022, Volume and Issue: 20(1), P. 1 - 14

Published: Oct. 5, 2022

The Cambrian fossil Amiskwia sagittiformis has puzzled palaeontologists for more than a century, but recent re-investigation of its morphology suggested close relationship with the bilaterian clade Gnathifera, comprising Rotifera, Gnathostomulida and Micrognathozoa. Since already been considered closely related to Chaetognatha, this new interpretation supports molecular developmental studies finding phylogenetic between Chaetognatha Gnathifera. re-description jaw apparatus first analysis by Vinther & Parry (2019 Vinther, J. Parry, L. A. 2019. Bilateral elements in bridge morphological gap gnathiferans chaetognaths. Current Biology, 29(5), 881–888.[Crossref], [PubMed], [Web Science ®] , [Google Scholar]) found rather surprising topology being sister groups nested inside Furthermore, subsequent paper from Caron Cheung Caron, J.-B. Cheung, B. is large gnathiferan complex gnathostomulid-like jaws. Communications 2, 164. doi:10.1038/s42003-019-0388-4[Crossref], re-described jaws as very similar configuration Gnathostomulida, did not include any analysis. Here we test various parsimony Bayesian analyses, taking into account description careful re-amendment matrix Parry. According our results findings on phylogeny their extant members, suggest systematization these taxa. We recovered stem-group chaetognath within Cucullophora nov., rejecting hypothesis affinity consensual monophyletic Gnathifera group Cucullophora, all together forming Chaetognathifera. Rotifera + Micrognathozoa form named Gynognathifera nov. discuss characters supporting each reasons that Finally, hope carefully amended focused formal classification robust phylogeny, will be use future palaeontology clades.

Language: Английский

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Jaw apparatus of Scoletoma fragilis (Lumbrineridae, Annelida): fine structure and growth

Zoomorphology, Journal Year: 2024, Volume and Issue: 143(2), P. 329 - 345

Published: March 25, 2024

Language: Английский

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Molecular systematics of Perinereis and an investigation of the status and relationships of the cultured species Perinereis wilsoni Glasby & Hsieh, 2006 (Annelida, Nereididae)

Zoosystematics and Evolution, Journal Year: 2024, Volume and Issue: 100(4), P. 1297 - 1314

Published: Sept. 13, 2024

In this study, we conducted morphological and molecular analyses of Perinereis wilsoni , a species being considered for aquaculture in China. We found difficult to identify because its close similarity the sympatric P. mictodonta thus sought genetic markers more easily distinguish it investigate phylogenetic relationship other nereidids. For first time, sequenced, assembled, annotated complete mitochondrial genome, nuclear ribosomal sequences ( 18S-ITS1-5.8S-ITS2-28S ), four histone genes H3-H2A-H2B-H4 ) . Comprehensive bioinformatics methods were employed assemble genome-skimming data ensure assembly quality. Phylogenetic based on five datasets available genomes (32 taxa Nereididae, including 8 using maximum likelihood Bayesian analyses, provide support monophyly genus contrast, nuntia group, subgroup within is nonmonophyletic. has closer with vancaurica Our study serves as baseline future work cultivation, reproductive biology, phylogeny

Language: Английский

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The cellular 3D printer of a marine bristle worm—chaetogenesis in Platynereis dumerilii (Audouin & Milne Edwards, 1834) (Annelida)

Cell and Tissue Research, Journal Year: 2022, Volume and Issue: 391(2), P. 305 - 322

Published: Dec. 23, 2022

Annelid chaetae are extracellular chitinous structures that formed in an epidermal invagination, the chaetal follicle. The basalmost cell of this follicle, chaetoblast, serves like a 3D-printer as it dynamically shapes chaeta. During chaetogenesis apical microvilli chaetoblast form template for chaeta, any structural details result from modulating pattern. This study describes process detail model organism Platynereis dumerilii and clarifies some aspects its close relative Nereis vexillosa, first annelid which ultrastructure had been described. Nereid species possess compound characteristic numerous subgroups errant annelids. distal most section these is movable; hinge connects part chaeta to shaft. Modulation differences their structure, diameter number microvilli, withdrawal reappearance determine shape chaetae. Chaetal structure pattern also change during life history. While larvae single type (in addition internal aciculae), juveniles adults two types replaced by large paddle-shaped swimming epitokous stages. Chaetogenesis continuous lasts entire lifespan. detailed developmental sequence site formation very similar within groups. We expect similarity results conserved gene regulatory network making optimal system test phylogenetic affinity taxa homology

Language: Английский

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Jaw morphology and function in Drilonereis cf. filum (Oenonidae, Annelida)

Journal of Morphology, Journal Year: 2023, Volume and Issue: 284(4)

Published: Feb. 14, 2023

Representatives of the extant family Oenonidae (Annelida, Eunicida) have a prionognath jaw apparatus, with maxillae having forceps-like elements, number asymmetrical dentate plates and long slender carriers, which is characteristic some fossil forms known from Paleozoic epoch. Therefore, data on fine structure functional morphology jaws are helpful for interpretation materials. The apparatus ventral pharyngeal organ studied in one species (Annelida)-Drilonereis cf. filum. material was collected soft bottom Marseille Bay (Mediterranean) examined help TEM histological techniques. A three-dimensional (3D) reconstruction made complete series semithin sections. entire about 500 µm length; it includes mandibles four pairs maxillae, connected paired dorsal carriers an unpaired carrier. While retracted, reaches VIII-XI chaetigers. most solid part maxillary that is, I II, 2.5-5 thick. plate consists monolithic array merged scleroprotein granules perforations, spaces remaining microvilli, visible; basal layer loosely arranged collagen fibers penetrated microvilli has no signs sclerotization. study Drilonereis filum showed presence common patterns Eunicida order. Like Dorvilleidae, Eunicidae, Onuphidae, Lumbrineridae, formed at basis typical annelid cuticle's transformation epi- basicuticular layers, its impregnation by merging granules. Through nature sclerotization, D. similar to those Histriobdellidae, juvenile Mooreonuphis stigmatis (Onuphidae). Analysis 3D-reconstructions shows MxI this species, probably other can make grasping motions fixing joint right left two-door hinge type. In general, overall mechanics work greater similarity Dorvilleidae than Labidognatha Simmetrognatha (Onuphidae, Lumbrineridae). need compactization when moving dense sediment or burrows factors determining structure.

Language: Английский

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A transcriptome-based phylogeny for Polynoidae (Annelida: Aphroditiformia)

Molecular Phylogenetics and Evolution, Journal Year: 2023, Volume and Issue: 185, P. 107811 - 107811

Published: May 9, 2023

Language: Английский

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Buried treasure in a public repository: Mining mitochondrial genes of 32 annelid species from sequence reads deposited in the Sequence Read Archive (SRA)

PeerJ, Journal Year: 2023, Volume and Issue: 11, P. e16446 - e16446

Published: Nov. 29, 2023

The mitochondrial genomes (mitogenomes) of metazoans generally include the same set protein-coding genes, which ensures homology genes between species. are often used as reference data for species identification based on genetic (DNA barcoding). need such has been increasing due to application environmental DNA (eDNA) analysis assessments. Recently, number publicly available sequence reads obtained with next-generation sequencing (NGS) in public database (the NCBI Sequence Read Archive, SRA). Such freely NGS would be promising sources assembling (mPCGs) organisms whose not GenBank. present study aimed assemble annelid mPCGs from raw deposited SRA.The recent progress classification Annelida was briefly introduced. In study, 32 19 families clitellates and allies Sedentaria (echiurans polychaetes) were newly assembled SRA. Assembly performed a recently published pipeline mitoRNA, includes cycles Bowtie2 mapping Trinity assembly. Assembled GenBank Third Party Data (TPA) data. A phylogenetic tree reconstructed maximum likelihood (ML) analysis, together other GenBank.mPCG assembly largely successful except Travisia forbesii; only four detected contigs probably targeting its parasite. Most successfully obtained, whereas atp8, nad2, nad4l 22-24 high nucleotide substitution rates these might relevant failure although nad6, showed similarly rate, assembled. Although positions several lineages resolved relationships some polychaetes leeches that inferred by transcriptomes well more dense taxon sampling than previous analyses transcriptomes. better resolving both higher lower classifications, there ensuring needs specific loci do require resolutions, barcoding, eDNA, among taxa. help design primers gene sequences species, hard amplify Sanger using universal primers.

Language: Английский

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