annelida

Summary

Summary: A phylum of metazoan invertebrates comprising the segmented worms, and including marine annelids (POLYCHAETA), freshwater annelids, earthworms (OLIGOCHAETA), and LEECHES. Only the leeches are of medical interest. (Dorland, 27th ed)

Top Publications

  1. Conzelmann M, Williams E, Tunaru S, Randel N, Shahidi R, Asadulina A, et al. Conserved MIP receptor-ligand pair regulates Platynereis larval settlement. Proc Natl Acad Sci U S A. 2013;110:8224-9 pubmed publisher
    ..We demonstrate by morpholino-mediated knockdown that MIP signals via this receptor to trigger settlement. These results reveal a role for a conserved MIP receptor-ligand pair in regulating marine annelid settlement...
  2. Struck T, Halanych K, Purschke G. Dinophilidae (Annelida) is most likely not a progenetic Eunicida: evidence from 18S and 28S rDNA. Mol Phylogenet Evol. 2005;37:619-23 pubmed
  3. Jennings R, Halanych K. Mitochondrial genomes of Clymenella torquata (Maldanidae) and Riftia pachyptila (Siboglinidae): evidence for conserved gene order in annelida. Mol Biol Evol. 2005;22:210-22 pubmed publisher
    ..Thus, to further understand the phylogenetic potential of complete mitochondrial genome sequence data in Annelida (segmented worms), we examined the complete mitochondrial sequence for Clymenella torquata (Maldanidae) and an ..
  4. Boore J, Staton J. The mitochondrial genome of the Sipunculid Phascolopsis gouldii supports its association with Annelida rather than Mollusca. Mol Biol Evol. 2002;19:127-37 pubmed
    ..arrangements of a variety of diverse metazoan taxa reveals that the phylum Sipuncula is more closely related to Annelida than to Mollusca...
  5. Feldman R, Shank T, Black M, Baco A, Smith C, Vrijenhoek R. Vestimentiferan on a whale fall. Biol Bull. 1998;194:116-9 pubmed
    ..Additionally, the bacterial endosymbiont in the tubeworm possessed a 16S rRNA gene that was similar to that of endosymbionts from vestimentiferans in sedimented cold-seep environments...
  6. Novo M, Riesgo A, Fernández Guerra A, Giribet G. Pheromone evolution, reproductive genes, and comparative transcriptomics in mediterranean earthworms (annelida, oligochaeta, hormogastridae). Mol Biol Evol. 2013;30:1614-29 pubmed publisher
    ..Genes involved in sexual determination and fertilization were highly expressed in reproductive tissue. This is thus the first detailed analysis of the molecular machinery of sexual reproduction in earthworms...
  7. Goto R, Okamoto T, Ishikawa H, Hamamura Y, Kato M. Molecular phylogeny of echiuran worms (Phylum: Annelida) reveals evolutionary pattern of feeding mode and sexual dimorphism. PLoS ONE. 2013;8:e56809 pubmed publisher
    ..Overall, our results contradict the currently accepted order-level classification, especially in that Echiuroinea is polyphyletic, and provide novel insights into the evolution of echiuran worms...
  8. Zhong M, Struck T, Halanych K. Phylogenetic information from three mitochondrial genomes of Terebelliformia (Annelida) worms and duplication of the methionine tRNA. Gene. 2008;416:11-21 pubmed publisher
    ..These taxa are within Terebelliformia (Annelida), which include spaghetti worms, icecream cone worms and their relatives...
  9. Saudemont A, Dray N, Hudry B, Le Gouar M, Vervoort M, Balavoine G. Complementary striped expression patterns of NK homeobox genes during segment formation in the annelid Platynereis. Dev Biol. 2008;317:430-43 pubmed publisher

More Information

Publications62

  1. Deloffre L, Salzet B, Vieau D, Andries J, Salzet M. Antibacterial properties of hemerythrin of the sand worm Nereis diversicolor. Neuro Endocrinol Lett. 2003;24:39-45 pubmed
    ..To investigate the immune defense of the annelid Nereis diversicolor and the key role of a oxygen-binding protein, the metalloprotein MPII animals were subjected to bacteria infection...
  2. Seaver E, Paulson D, Irvine S, Martindale M. The spatial and temporal expression of Ch-en, the engrailed gene in the polychaete Chaetopterus, does not support a role in body axis segmentation. Dev Biol. 2001;236:195-209 pubmed
    ..We observe banded mesodermal and ectodermal staining in an anterior-posterior sequence in the C region. We do not observe a segment polarity pattern of expression of Ch-en in the ectoderm, as is observed in arthropods...
  3. Chamoy L, Nicolai M, Ravaux J, Quennedey B, Gaill F, Delachambre J. A novel chitin-binding protein from the vestimentiferan Riftia pachyptila interacts specifically with beta-chitin. Cloning, expression, and characterization. J Biol Chem. 2001;276:8051-8 pubmed
    ..This unexpected result clearly indicates that this tube protein is synthesized in specialized areas of the outer epithelium and that at least two different tissues are involved in this exoskeleton synthesis...
  4. Voronezhskaya E, Tyurin S, Nezlin L. Neuronal development in larval chiton Ischnochiton hakodadensis (Mollusca: Polyplacophora). J Comp Neurol. 2002;444:25-38 pubmed
    ..Thus, our data demonstrate the conservative pattern of molluscan neurogenesis and suggest independent origin of molluscan and annelid trochophores...
  5. De Cian M, Andersen A, Bailly X, Lallier F. Expression and localization of carbonic anhydrase and ATPases in the symbiotic tubeworm Riftia pachyptila. J Exp Biol. 2003;206:399-409 pubmed
    ..In the trophosome lobules, cytosolic CA is expressed and found in bacteriocytes and peritoneal cells. Hypotheses on the role of CA in bicarbonate and CO(2) interconversion to fuel the symbiotic bacteria are discussed...
  6. Worsaae K, Rouse G. Is Diurodrilus an annelid?. J Morphol. 2008;269:1426-55 pubmed publisher
    Interstitial marine meiofaunal worms of the genus Diurodrilus have always been considered part of Annelida, either as basal or derived, though generally with reference to Dinophilidae...
  7. Kulakova M, Bakalenko N, Novikova E, Cook C, Eliseeva E, Steinmetz P, et al. Hox gene expression in larval development of the polychaetes Nereis virens and Platynereis dumerilii (Annelida, Lophotrochozoa). Dev Genes Evol. 2007;217:39-54 pubmed
  8. Tessmar Raible K, Steinmetz P, Snyman H, Hassel M, Arendt D. Fluorescent two-color whole mount in situ hybridization in Platynereis dumerilii (Polychaeta, Annelida), an emerging marine molecular model for evolution and development. Biotechniques. 2005;39:460, 462, 464 pubmed
  9. Vitturi R, Libertini A, Armetta F, Sparacino L, Colomba M. Chromosome analysis and FISH mapping of ribosomal DNA (rDNA), telomeric (TTAGGG)n and (GATA)n repeats in the leech Haemopis sanguisuga (L.) (Annelida: Hirudinea). Genetica. 2002;115:189-94 pubmed
    In the present paper the chromosome complement (n = 13; 2n = 26) of the common leech Haemopis sanguisuga (L.) (Annelida: Hirudinea: Hirudinidae) was analyzed using banding techniques and fluorescent in situ hybridization (FISH) with three ..
  10. Boore J, Brown W. Mitochondrial genomes of Galathealinum, Helobdella, and Platynereis: sequence and gene arrangement comparisons indicate that Pogonophora is not a phylum and Annelida and Arthropoda are not sister taxa. Mol Biol Evol. 2000;17:87-106 pubmed publisher
    We report a contiguous region of more than half (> 7,500 nt) of the mitochondrial genomes for Platynereis dumerii (Annelida: Polychaeta), Helobdella robusta (Annelida: Hirudinida), and Galathealinum brachiosum (Pogonophora: Perviata)...
  11. Muller M, Westheide W. Structure of the nervous system of Myzostoma cirriferum (Annelida) as revealed by immunohistochemistry and cLSM analyses. J Morphol. 2000;245:87-98 pubmed
    ..The nervous system M. cirriferum thus exhibits several structures also found in the basic plan of the polychaete nervous system...
  12. Girguis P, Childress J, Freytag J, Klose K, Stuber R. Effects of metabolite uptake on proton-equivalent elimination by two species of deep-sea vestimentiferan tubeworm, Riftia pachyptila and Lamellibrachia cf luymesi: proton elimination is a necessary adaptation to sulfide-oxidizing chemoautotrophic sym. J Exp Biol. 2002;205:3055-66 pubmed
    ..pachyptila and L. cf luymesi, and that proton elimination is driven by symbiont metabolism, and may be the largest energetic cost incurred by the worms...
  13. Goffredi S, Childress J, Desaulniers N, Lallier F. Sulfide acquisition by the vent worm Riftia pachyptila appears to be via uptake of HS-, rather than H2S. J Exp Biol. 1997;200:2609-16 pubmed
    ..H2S accumulation is limited, however, to sulfide that can be bound by the hemoglobins, protecting the animal from sulfide toxicity and the symbionts from sulfide inhibition of carbon fixation...
  14. Cordes E, Arthur M, Shea K, Arvidson R, Fisher C. Modeling the mutualistic interactions between tubeworms and microbial consortia. PLoS Biol. 2005;3:e77 pubmed
    ..luymesi for hundreds of years. The results of this model expand our concept of the potential benefits derived from complex interspecific relationships, in this case involving members of all three domains of life...
  15. Sjölin E, Erséus C, Källersjö M. Phylogeny of Tubificidae (Annelida, Clitellata) based on mitochondrial and nuclear sequence data. Mol Phylogenet Evol. 2005;35:431-41 pubmed
    ..Most of the tubificid genera included in the study are supported as monophyletic; however, Tubifex and Limnodriloides are refuted, and Tubificoides is unresolved from other tubificine taxa...
  16. Wilkens V, Purschke G. Pigmented eyes, photoreceptor-like sense organs and central nervous system in the polychaete Scoloplos armiger (Orbiniidae, Annelida) and their phylogenetic importance. J Morphol. 2009;270:1296-310 pubmed publisher
    The phylogenetic position of Orbiniidae within Annelida is unresolved. Conflicting hypotheses place them either in a basal taxon Scolecida, close to Spionida, or in a basal position in Aciculata...
  17. Jones W, Johnson S, Rouse G, Vrijenhoek R. Marine worms (genus Osedax) colonize cow bones. Proc Biol Sci. 2008;275:387-91 pubmed
    ..The ability of Osedax species to colonize, grow and reproduce on cow bones challenges previous notions that these worms are 'whale-fall specialists.'..
  18. Aguado M, Bleidorn C. Conflicting signal within a single gene confounds syllid phylogeny (Syllidae, Annelida). Mol Phylogenet Evol. 2010;55:1128-38 pubmed publisher
    ..In the light of these results, the implications of including/excluding ambiguous regions in the alignments are evaluated, and finally a systematic proposal for the classification of syllids is put forward...
  19. Hausdorf B, Helmkampf M, Meyer A, Witek A, Herlyn H, Bruchhaus I, et al. Spiralian phylogenomics supports the resurrection of Bryozoa comprising Ectoprocta and Entoprocta. Mol Biol Evol. 2007;24:2723-9 pubmed
    ..of 38 metazoans, partly derived from 6 new expressed sequence tag projects for Ectoprocta, Entoprocta, Sipuncula, Annelida, and Acanthocephala, indicate the monophyly of Bryozoa comprising Ectoprocta and Entoprocta, 2 taxa that have ..
  20. Worsaae K, Rouse G. The simplicity of males: dwarf males of four species of Osedax (Siboglinidae; Annelida) investigated by confocal laser scanning microscopy. J Morphol. 2010;271:127-42 pubmed publisher
    Dwarf males of the bone-eating worms Osedax (Siboglinidae, Annelida) have been proposed to develop from larvae that settle on females rather than on bone...
  21. Zrzavý J, Riha P, Piálek L, Janouskovec J. Phylogeny of Annelida (Lophotrochozoa): total-evidence analysis of morphology and six genes. BMC Evol Biol. 2009;9:189 pubmed publisher
    b>Annelida is one of the major protostome phyla, whose deep phylogeny is very poorly understood...
  22. Peterson K, Eernisse D. Animal phylogeny and the ancestry of bilaterians: inferences from morphology and 18S rDNA gene sequences. Evol Dev. 2001;3:170-205 pubmed
  23. Jekely G, Arendt D. Cellular resolution expression profiling using confocal detection of NBT/BCIP precipitate by reflection microscopy. Biotechniques. 2007;42:751-5 pubmed
    ..Whole-mount reflection CLSM will thus greatly facilitate large-scale cellular resolution expression profiling in vertebrate and invertebrate model organisms...
  24. Nussbaumer A, Fisher C, Bright M. Horizontal endosymbiont transmission in hydrothermal vent tubeworms. Nature. 2006;441:345-8 pubmed
  25. Halanych K, Feldman R, Vrijenhoek R. Molecular evidence that Sclerolinum brattstromi is closely related to vestimentiferans, not to frenulate pogonophorans (Siboglinidae, Annelida). Biol Bull. 2001;201:65-75 pubmed
    ..The evidence now available indicates that vestimentiferans lack the molecular diversity expected of a group that has been argued to have Silurian or possibly Cambrian origins...
  26. Duperron S, De Beer D, Zbinden M, Boetius A, Schipani V, Kahil N, et al. Molecular characterization of bacteria associated with the trophosome and the tube of Lamellibrachia sp., a siboglinid annelid from cold seeps in the eastern Mediterranean. FEMS Microbiol Ecol. 2009;69:395-409 pubmed publisher
    Specimens of Lamellibrachia (Annelida: Siboglinidae) were recently discovered at cold seeps in the eastern Mediterranean...
  27. Rouse G, Worsaae K, Johnson S, Jones W, Vrijenhoek R. Acquisition of dwarf male "harems" by recently settled females of Osedax roseus n. sp. (Siboglinidae; Annelida). Biol Bull. 2008;214:67-82 pubmed
    ..Osedax roseus n. sp. is markedly divergent (minimally 16.6%) for mitochondrial cytochrome oxidase subunit I (mtCOI) sequences from any other Osedax species...
  28. Struck T, Paul C, Hill N, Hartmann S, Hösel C, Kube M, et al. Phylogenomic analyses unravel annelid evolution. Nature. 2011;471:95-8 pubmed publisher
    b>Annelida, the ringed worms, is a highly diverse animal phylum that includes more than 15,000 described species and constitutes the dominant benthic macrofauna from the intertidal zone down to the deep sea...
  29. Zhong M, Hansen B, Nesnidal M, Golombek A, Halanych K, Struck T. Detecting the symplesiomorphy trap: a multigene phylogenetic analysis of terebelliform annelids. BMC Evol Biol. 2011;11:369 pubmed publisher
    ..This situation is due to apparent symplesiomorphic characters and known as "the symplesiomorphy trap"...
  30. Norlinder E, Nygren A, Wiklund H, Pleijel F. Phylogeny of scale-worms (Aphroditiformia, Annelida), assessed from 18SrRNA, 28SrRNA, 16SrRNA, mitochondrial cytochrome c oxidase subunit I (COI), and morphology. Mol Phylogenet Evol. 2012;65:490-500 pubmed publisher
  31. Kristof A, Wollesen T, Wanninger A. Segmental mode of neural patterning in sipuncula. Curr Biol. 2008;18:1129-32 pubmed publisher
    ..a close relationship between two worm-shaped phyla, the nonsegmented Sipuncula (peanut worms) and the segmented Annelida (e.g., earthworms and polychaetes) [1-5]...
  32. Monge Nájera J, Hou X. Experimental taphonomy of velvet worms (Onychophora) and implications for the Cambrian "explosion, disparity and decimation" model. Rev Biol Trop. 2002;50:1133-8 pubmed
    ..Computer-aided photorealistic reconstructions of fossi onychophorans are presented. We recommend future researchers to conduct taphonomy experiments specially before analysing unusual fossils...
  33. Struck T, Schult N, Kusen T, Hickman E, Bleidorn C, McHugh D, et al. Annelid phylogeny and the status of Sipuncula and Echiura. BMC Evol Biol. 2007;7:57 pubmed
    b>Annelida comprises an ancient and ecologically important animal phylum with over 16,500 described species and members are the dominant macrofauna of the deep sea...
  34. Chabasse C, Bailly X, Sanchez S, Rousselot M, Zal F. Gene structure and molecular phylogeny of the linker chains from the giant annelid hexagonal bilayer hemoglobins. J Mol Evol. 2006;63:365-74 pubmed
    ..We propose that the common gene ancestor to annelid linker genes exhibited a four-intron and five-exon structure and gave rise to the two families subsequent to a duplication event...
  35. Hessling R, Westheide W. Are Echiura derived from a segmented ancestor? Immunohistochemical analysis of the nervous system in developmental stages of Bonellia viridis. J Morphol. 2002;252:100-13 pubmed
    Despite several unquestionably homologous characters with Annelida, the Echiura have generally been considered to form a distinct taxon due to apparent lack of segmentation: neither in the body cavity nor in any other structures of the ..
  36. Helm C, Weigert A, Mayer G, Bleidorn C. Myoanatomy of Myzostoma cirriferum (Annelida, Myzostomida): implications for the evolution of the myzostomid body plan. J Morphol. 2013;274:456-66 pubmed publisher
    Studies of rare genomic marker systems suggest that Myzostomida are a subgroup of Annelida and phylogenomic analyses indicate an early divergence of this taxon within annelids...
  37. Boore J. Complete mitochondrial genome sequence of Urechis caupo, a representative of the phylum Echiura. BMC Genomics. 2004;5:67 pubmed publisher
    ..Urechis caupo mtDNA shares many features with those of the few studied annelids, including the common usage of ATG start codons, unusual among animal mtDNAs, as well as gene arrangements, tRNA structures, and codon usage biases...
  38. Burnette A, Struck T, Halanych K. Holopelagic Poeobius meseres ("Poeobiidae," Annelida) is derived from benthic flabelligerid worms. Biol Bull. 2005;208:213-20 pubmed
    Phylogenetic relationships among and within the more than 70 recognized families of Annelida are poorly understood...
  39. Nygren A, Sundberg P. Phylogeny and evolution of reproductive modes in Autolytinae (Syllidae, Annelida). Mol Phylogenet Evol. 2003;29:235-49 pubmed
    The phylogeny of 31 autolytine taxa (Syllidae, Polychaeta, and Annelida) was estimated based on 16S rDNA and 18S rDNA sequences. Outgroups included 12 non-autolytine syllids and four other annelids from related groups...
  40. Bleidorn C, Podsiadlowski L, Zhong M, Eeckhaut I, Hartmann S, Halanych K, et al. On the phylogenetic position of Myzostomida: can 77 genes get it wrong?. BMC Evol Biol. 2009;9:150 pubmed publisher
    ..Ribosomal proteins (RP) dominate many of these analyses or are, in some cases, the only genes included. Despite initial hopes, phylogenomic analyses including tens to hundreds of genes still fail to robustly place many bilaterian taxa...
  41. Bailly X, Chabasse C, Hourdez S, Dewilde S, Martial S, Moens L, et al. Globin gene family evolution and functional diversification in annelids. FEBS J. 2007;274:2641-52 pubmed
    ..It appears that it has the same intron position as in globin genes, suggesting a common ancestry with globins. In A. ornata, DHP may be a derived globin with an unusual enzymatic function...
  42. Suzuki T, Honda M, Matsumoto S, Sturzenbaum S, Gamou S. Valosine-containing proteins (VCP) in an annelid: identification of a novel spermatogenesis related factor. Gene. 2005;362:11-8 pubmed
    ..Taken together, this evidence leads to the notion that eVCP-2 is a likely component involved in the final modulation of spermatogenesis...
  43. Winchell C, Valencia J, Jacobs D. Expression of Distal-less, dachshund, and optomotor blind in Neanthes arenaceodentata (Annelida, Nereididae) does not support homology of appendage-forming mechanisms across the Bilateria. Dev Genes Evol. 2010;220:275-95 pubmed publisher
  44. Mwinyi A, Meyer A, Bleidorn C, Lieb B, Bartolomaeus T, Podsiadlowski L. Mitochondrial genome sequence and gene order of Sipunculus nudus give additional support for an inclusion of Sipuncula into Annelida. BMC Genomics. 2009;10:27 pubmed publisher
    ..Recent molecular and morphological findings suggest a close affinity to the segmented Annelida. ..
  45. Gustafsson D, Price D, Erséus C. Genetic variation in the popular lab worm Lumbriculus variegatus (Annelida: Clitellata: Lumbriculidae) reveals cryptic speciation. Mol Phylogenet Evol. 2009;51:182-9 pubmed publisher
    ..This will have to be taken into account in the continued use of L. variegatus as a model organism in biological sciences...
  46. Bely A, Wray G. Molecular phylogeny of naidid worms (Annelida: Clitellata) based on cytochrome oxidase I. Mol Phylogenet Evol. 2004;30:50-63 pubmed
    ..The simplest form of fission, architomy (fragmentation), occurs in two of the most basally branching naidid genera, and may represent the plesiomorphic condition for naidids...
  47. Kvist S, Sarkar I, Erséus C. Genetic variation and phylogeny of the cosmopolitan marine genus Tubificoides (Annelida: Clitellata: Naididae: Tubificinae). Mol Phylogenet Evol. 2010;57:687-702 pubmed publisher
  48. Neave M, Streten Joyce C, Nouwens A, Glasby C, McGuinness K, Parry D, et al. The transcriptome and proteome are altered in marine polychaetes (Annelida) exposed to elevated metal levels. J Proteomics. 2012;75:2721-35 pubmed publisher
    ..This dual approach has provided a better understanding of heavy metal resistance in polychaetes and we now have a wider range of suitable indicator genes and proteins for future biomarker development...
  49. Gibson G, Hart C, Coulter C, Xu H. Nurse eggs form through an active process of apoptosis in the spionid Polydora cornuta (Annelida). Integr Comp Biol. 2012;52:151-60 pubmed publisher
    ..cornuta embryos, it was not detected until later in development. This suggests that nurse eggs originate through heterochrony in a developmental process (apoptosis) that is common to all young of P. cornuta...
  50. Prud homme B, Lartillot N, Balavoine G, Adoutte A, Vervoort M. Phylogenetic analysis of the Wnt gene family. Insights from lophotrochozoan members. Curr Biol. 2002;12:1395 pubmed
    ..The orthology relationships we present here open new perspectives for future developmental comparisons...
  51. Cho S, Vallès Y, Giani V, Seaver E, Weisblat D. Evolutionary dynamics of the wnt gene family: a lophotrochozoan perspective. Mol Biol Evol. 2010;27:1645-58 pubmed publisher
    ..Comparisons of the embryonic expression patterns of the duplicated wnt genes in Helobdella with their orthologs in Capitella reveal extensive regulatory diversification of the duplicated leech wnt genes...
  52. Lanterbecq D, Rouse G, Eeckhaut I. Evidence for cospeciation events in the host-symbiont system involving crinoids (Echinodermata) and their obligate associates, the myzostomids (Myzostomida, Annelida). Mol Phylogenet Evol. 2010;54:357-71 pubmed publisher
    ..A minimum of 8 cospeciation events was estimated, which is significantly higher than it would have been expected due to chance alone...
  53. Davidson C, Best N, Francis J, Cooper E, Wood T. Toll-like receptor genes (TLRs) from Capitella capitata and Helobdella robusta (Annelida). Dev Comp Immunol. 2008;32:608-12 pubmed publisher
    ..One clade consists of a mixture of both vertebrates and invertebrates, including sequences from Capitella and Helobdella, while the other two clades contain only invertebrate TLRs...