Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Local posterior probabilities below 1.0 shown. Unfortunately, because of the small size of this species, there was only adequate material for paired-end Illumina sequencing library preparation with insufficient material for mate pair, long-read, or transcriptome library preparation using techniques available at the time that this work was conducted. The data matrix analysed is available via FigShare at https://figshare.com/s/934e61a053aacd8d37c1. & Runnegar, B. Google Scholar, Salvini-Plawen Lv (1969) Solenogastres und Caudofoveata (Mollusca, Aculifera): organisation und phylogenetische Bedeutung. Confused by a class within a class or Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. Sparse_pregraph was used to construct the K-mer graph using the following settings: -K 31 -g 15 -z 2000000000 -d 1 -e 1 -r 0 -p 28. Laevipilina antarctica and people: They are studied by scientists. Correspondence to 2; Supplementary Fig. Rice, P., Longden, I. Kocot, K. M. et al. Article Biol. 64, 384395 (2014). CAS Yochelson, E. L. Early radiation of Mollusca and mollusc-like groups. Yochelson, E. L. Alternative approach to interpretation of phylogeny of ancient mollusks. Phylogenetic analyses were conducted using maximum likelihood (ML) in RAxML 834 with the best-fitting model for each gene, and in IQ-TREE using the posterior mean site frequency (LG+C60+G+F) mixture model35,36,37. Encyclopedia.com. In general the anatomy of this small (3.2 mm) species. Biotechnol. Raw reads were filtered for quality, PCR duplicates, and adapter sequences and corrected using SOAPfilter_v2.0 (https://github.com/tanghaibao/jcvi-bin/blob/master/SOAP/SOAPfilter_v2.0) using default settings. CAS CAS Digitized with the permission of the rights holder. Lartillot, N., Lepage, T. & Blanquart, S. PhyloBayes 3: a Bayesian software package for phylogenetic reconstruction and molecular dating. This study summarizes the present distributional knowledge of all Antarctic monoplacophorans, adding new records from the Eastern Weddell Sea. 16, 11141116 (1999). nov). 32, 268274 (2015). The topology of the tree was manually constrained a priori by defining the major splits of the BI tree analysed herein. Internet Explorer). ADS an order within an order? Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list. Examples of common gastropods include all varieties of sna, Millipedes are long, cylindrical, segmented, many-legged terrestrial arthropods in the class Diplopoda, in total comprising about 10,000 species. Galathea Rep 3:971, 56 pls, Moskalev LI, Starobogatov YI, Filatova ZA (1983) New data on the abyssal Monoplacophora from the Pacific and South Atlantic Oceans [in Russian, English summary]. Mol. PHYSICAL CHARACTERISTICS Monoplacophorans (mon-oh-plak-oh-FOR-ans) look like limpets, but their single round shell, or valve, is bilaterally symmetrical. This analysis also recovered Monoplacophora sister to the rest of Conchifera (local posterior probability, lpp=0.89; Fig. taxonomy. ." Phylogenet. In Phylogeny and Evolution of the Mollusca 3370 (University of California Press, 2008). Vinther, J., Parry, L., Briggs, D. E. & Van Roy, P. Ancestral morphology of crown-group molluscs revealed by a new Ordovician stem aculiferan. If the Lottia amino acid sequence contributing to the pHMM was the best BLASTP hit in each of these back-BLASTs, the sequence was then assigned to that OG. Am. 32, 2538 (2004). Evol. 78, 675689 (2004). Syst. MolluscaBase eds. This project was supported by the Deep Metazoan and the Antarctic Priority Programmes of the German Research Foundation (DFG SCHR667/9-1 and SCHR667/15-1), an LMU graduate stipend to I.S., and NSF DEB 1845174 and University of Alabama start-up funds to K.M.K. 205, 585594 (1985). Assessment of this assembly with BUSCO33 showed that it is rather incomplete with only 14.6% of the 978 metazoa_odb9 genes recovered as complete and another 17.9% recovered as fragmented. Zool. Orig. Records of extant Monoplacophora are still scarce, often limited to single specimens or empty shells. Phylogenomic studies have also strongly supported a clade including Gastropoda, Bivalvia, and Scaphopoda, but relationships among these taxa have been inconsistent. J. Mol. The point of the valve is located in the middle, just over the front edge. In Phylogeny and Evolution of the Mollusca 97104 (University of California Press, 2008). Bull. The shell is small, fragile, depressed, and transparent with a flat peristome. They are found in the South Atlantic Ocean, Gulf of Aden, and several places in the eastern Pacific Ocean. Finally, remaining OGs were then concatenated using FASconCAT77. We thank Rebecca Varney and Meghan Yap Chiongco for providing helpful feedback on an earlier version of this manuscript. Language links are at the top of the page across from the title. A cladistic point of view. . Zool. [1] This study was supported by the GeoBioCenterLMU, the Deutsche Forschungsgemeinschaft (DFG grant HA 2598/6-1 to MS) and the Natural Environmental Research Council (BAS core science project MARB to KL). Within Aplacophora, we recovered Solenogastres and Caudofoveata reciprocally monophyletic. DOI: 10.1007/s00300-006-0132-7 This led to the discovery of a bacterial symbiosis in the epidermis of the mantle roof and of the head of the animal. Curr. PubMed B Biol. They measure 0.25 to 1.25 inches (3 to 30 millimeters) in length. and A.J.P. Spermatozoa of Laevipilina antarctica Warn and Hain, 1992, are of the structurally simple, aquasperm type, featuring a conical acrosome, a compact nucleus with lacunae, a short midpiece and a single flagellum. Schrdl, M. & Stger, I. 66, 256282 (2017). Hist. CAS There are no eyes, and the only tentacles are found next to the mouth. B Biol. Phylogenet. van der Land, J. J. Laevipilina antarctica is a species of molluscs in the family Neopilinidae. I.S. Learn more about Institutional subscriptions, Alfred Wegener Institut fuer Polar- und Meeresforschung, Bremerhaven, Germany, Zoologische Staatssammlung Mnchen, Munich, Germany, Dell RK (1990) Antarctic Mollusca. Malacol. Passamaneck, Y. J., Schander, C. & Halanych, K. M. Investigation of molluscan phylogeny using large-subunit and small-subunit nuclear rRNA sequences. Phylogenomics of Lophotrochozoa with consideration of systematic error. Polar biology, 29: 721-727. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate. Laevipilina antarctica are found in the Weddell and Lazarev Seas, off the coast of Antarctica. Nature 388, 868871 (1997). Luo, R. et al. Mol. Nucleic Acids Res. Syst. CAS PubMedGoogle Scholar. A Bayesian inference (BI) analysis was conducted in PhyloBayes MPI38 with the CAT-GTR mixture model39. Disclaimer: Morphological studies have considered the rarely collected Monoplacophora (Tryblidia) to have several plesiomorphic molluscan traits. http://www.danceweb.com.au/marine/data/majgrps.htm#mono (accessed on March 30, 2005). Biol. Trends Genet. M.S. Lond. nov., a new monoplacophoran species from the mid-Atlantic Ridge in the northern Atlantic Ocean (Monoplacophora, Neopilinidae). Bayesian Inference analysis was conducted with PhyloBayes 4.1b78 using the site-heterogeneous CAT-GTR model. Front. Google Scholar. J. Paleontol. volume29,pages 721727 (2006)Cite this article. Biol. Redundant identical sequences were removed with UniqHaplo (http://raven.iab.alaska.edu/~ntakebay/). Laevipilina antarctica, specimen sizes and bathymetrical range (data on holotype from WarenWaren and Hain 1992) Source publication Review on the distribution and biology of Antarctic. Species Laevipilina antarctica Warn & Hain, 1992 Species Laevipilina cachuchensis Urgorri, Garca-lvarez & Luque, 2005 Species Laevipilina hyalina (J. H. McLean, 1979) Species Laevipilina rolani Warn & Bouchet, 1990 Species Laevipilina theresae Schrdl, 2006 This means that the valve has a distinct left side and a distinct right side. Sources of publicly available datasets used herein are presented in Supplementary Table1. Two complete (Laevipilina antarctica and Vema ewingi) and one partial (Laevipilina hyalina) mitochondrial genomes were sequenced, assembled, and compared.All three genomes show a highly similar architecture including an unusually high number of non-coding regions. CAS Wanninger, A. Concentration was determined using a Qubit 2.0 Fluorometer, and 1g was used to create a sequencing library with the TruSeq DNA Sample Preparation Kit v2 (Illumina, San Diego, CA, USA) with an average insert size of approximately 250bp. Our analyses placing Monoplacophora sister to the rest of Conchifera indicate that the only unambiguously apomorphic trait of Ganglionata is the reduction of adult dorsoventral muscle pairs from a hypothesized ancestral set of eight (or possibly seven44). Int. Hypothesis testing using the Approximately Unbiased test79 and the Shimodaira Hasegawa test80 was conducted using RAxML 8.2.434 and CONSEL81 based on the RAxML analysis. No monoplacophorans are considered threatened or endangered. Laevipilina antarctica was collected during the ANDEEP-SYSTCO expedition on R/V Polarstern; thanks go to the AWI, the Captain and the Crew, to the cruise leader Prof. Angelika Brandt (Frankfurt), and to Enrico Schwabe (ZSM) for facilitating specimen collection. Molluscan Res. Dep. Investigating the Bivalve Tree of Lifean exemplar-based approach combining molecular and novel morphological characters. Syst. Retrieved May 25, 2023 from Encyclopedia.com: https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/monoplacophorans-monoplacophora. https://github.com/tanghaibao/jcvi-bin/blob/master/SOAP/SOAPfilter_v2.0, https://github.com/kmkocot/basal_metazoan_phylogenomics_scripts_01-2015, https://figshare.com/s/934e61a053aacd8d37c1, http://creativecommons.org/licenses/by/4.0/, Shell field morphogenesis in the polyplacophoran mollusk Acanthochitona rubrolineata, CaaX-less lamins: Lophotrochozoa provide a glance at the playground of evolution, Elemental analyses reveal distinct mineralization patterns in radular teeth of various molluscan taxa, Beyond congruence: evidential integration and inferring the best evolutionary scenario, The rhodopsin-retinochrome system for retinal re-isomerization predates the origin of cephalopod eyes. http://animaldiversity.ummz.umich.edu/site/accounts/information/Monoplacophora.html (accessed on March 30, 2005). Vinther, J. Evol. This means that the valve has a distinct left side and a distinct right side. (D) ASTRAL tree. Katoh, K., Kuma, K., Toh, H. & Miyata, T. MAFFT version 5: improvement in accuracy of multiple sequence alignment. Within Conchifera (Bivalvia, Cephalopoda, Gastropoda, Monoplacophora, and Scaphopoda), the clade of molluscs with uni- or bivalved shells, the deep-sea limpet-like Monoplacophora has long been thought to be important to understanding early molluscan evolution5,10,11,12,13,14 with most morphology-based hypotheses placing Monoplacophora sister to a clade of all other conchiferans. The remapping step of SOAPdenovo was carried out using standard settings and the scaffolding step was used with parameters: -F -G 200 -p 28. 215, 403410 (1990). Bioinformatics 17, 12461247 (2001). You can help Wikipedia by expanding it. (2023). . PubMed A living fossil." Fedonkin, M. A., Simonetta, A. In 2006, a molecular study on Laevipilina antarctica suggested that extant Monoplacophora and Polyplacophora form a well-supported clade with the researched Neopilina closest to the chitons. The record of Laevipilina antarctica from over 3,000 m depth extends its previously known bathymetrical range from 210 to 644 m down to abyssal depths. Therefore, that information is unavailable for most Encyclopedia.com content. 15, 115130 (2000). Full-length transcriptome assembly from RNA-Seq data without a reference genome. Yochelson, E. L., Flower, R. H. & Webers, G. F. The bearing of the new Late Cambrian monoplacophoran genus Knightoconus upon the origin of the Cephalopoda. Bull. 74, 177190 (2009). ADS Sigwart, J. D. et al. 43, 601611 (2009). Bioinformatics 25, 2286 (2009). Salvini-Plawen, L. V. & Steiner, G. Synapomorphies and plesiomorphies in higher classification of Mollusca. Numbers along y-axis are millions of years before present (Ma). Wolf Arntz (AWI) and Angelika Brandt (Hamburg) are especially acknowledged for organizing and letting us participating at the EASIZ and ANDEEP expeditions. As noted above, at least some fossil aculiferans had a single shell; at least some SSFs could conceivably have been aculiferans. They are found attached to rocks and solid objects. Care was taken to exclude possible contamination and mistranslated sequence regions (see Methods) while minimizing the amount of missing data in the final matrix (27.86% missing data). You can help Wikipedia by expanding it. Dohrmann, M. & Wrheide, G. Dating early animal evolution using phylogenomic data. Telford, M. J. Mollusc evolution: seven shells on the sea shore. Conservation status: Laevipilina antarctica is not considered threatened or endangered. Rev. Misof, B. Cite this article. K.M.K., M.S., K.M.H., I.S. 69, 376392 (2013). They are among the most succes, Crayfish are freshwater crustaceans of the order Decapoda, which includes crabs , shrimps, lobsters , and hermit crabs. B 286, 20190115 (2019). Origin and the early evolution of the phylum Mollusca. 2019Encyclopedia.com | All rights reserved. Accessed at https://animaldiversity.org. Biol. Sci. 1D). Surprisingly, the split of gastropods and scaphopods is rather late according to our molecular clock analysis (474 MYA; 95% HDP=479520 MYA); this could mean that many Cambrian shells currently regarded to be gastropods were actually members of the gastropod-scaphopod stem lineage. 2020 Regents of the University of Michigan. 23, 21302134 (2013). In the meantime, to ensure continued support, we are displaying the site without styles 33, 511518 (2005). The shallowest known extant monoplacophoran Laevipilina hyalina McLean, 1979 is known from depths 174-388 m, along the Santa Rosa-Cortes Ridge in the continental borderland of southern California ( McLean, 1979 ). (ed). Evol. Because this approach requires a guide tree to infer the site frequency model, we used the previously generated RAxML tree. "Monoplacophorans: Monoplacophora Laevipilina antarctica Warn & Hain, 1992 Range: 70.65S to 75.67S; 29.62W to 0W Depth: 480 to 3102 m (live 480 to 3102 m) Maximum Reported Size: 3 mm Details Laevipilina antarctica Warn & Hain, 1992, p. 167-173, figs. Schrdl, M., Linse, K. & Schwabe, E. Review on the distribution and biology of Antarctic Monoplacophora, with first abyssal record of Laevipilina antarctica Stamatakis, A. RAxML version 8: a tool for phylogenetic analysis and post-analysis of large phylogenies. 31, 114 (2013). Biol. (B) IQ-TREE ML topology. Scherholz, M., Redl, E., Wollesen, T., Todt, C. & Wanninger, A. Aplacophoran mollusks evolved from ancestors with polyplacophoran-like features. Posterior probabilities below 1.0 shown. The microvilli are circular in cross sections (diameter about 100 nm), usually branched and show a distal Price, M. N., Dehal, P. S. & Arkin, A. P. FastTree 2 approximately maximum-likelihood trees for large alignments. Malacologia 9:191216, Schaefer K, Haszprunar G (1996) Anatomy of Laevipilina antarctica, a monoplacophoran limpet (Mollusca) from Antarctic waters. Moroz, L. L. On the independent origins of complex brains and neurons. Biol. Kevin M. Kocot. To examine support for key hypotheses from individual partitions, we made trees for each gene in RAxML using the best-fitting model, used these as guide trees for IQ-TREE analyses with the LG+C20+G+F model, and inferred a supertree using a multi-species coalescent model in ASTRAL 5.6.140. Article 279, 12591268 (2012). Bieler, R. et al. Name . Placement of Monoplacophora sister to all other conchiferans had a lower likelihood score than Monoplacophora+Cephalopoda in the RAxML analysis and could not be rejected by the Shimodaira-Hasegawa (SH) test (p=0.190). Biol. Spermatozoa and spermatogenesis in a monoplacophoran mollusc, Laevipilina antarctica : ultrastructure and comparison with other Mollusca Healy, J.; Schaefer, K.; Haszprunar, G. Marine Biology, Volume 122 (1) - Mar 1, 1995 Read Article Download PDF Share Full Text for Free 13 pages Article Details Recommended References Bookmark Add to Folder Cite New data from Monoplacophora and a carefully-curated dataset resolve molluscan relationships. A summary of reports of abyssal and hadal Monoplacophora and Polyplacophora (Mollusca), https://en.wikipedia.org/w/index.php?title=Laevipilina&oldid=1153163056, This page was last edited on 4 May 2023, at 15:46. In Abstracts of the 2012 Society for the Study of Evolution Meeting (2012). Biol. New data on Kimberella, the Vendian mollusc-like organism (White Sea region, Russia): palaeoecological and evolutionary implications. J. Nat. conceived the project. Our molecular clock analysis (Fig. The apex is slightly mamillate, forms an angle of approximately 60 with the basal plane, and is situated behind the anterior margin. physical characteristics. Translated transcripts for all taxa were then searched against the 2,259 Trochozoa pHMMs. The phylogenetic position of this group is contentious as morphologists have generally placed this clade as the sister taxon of the rest of Conchifera whereas earlier molecular studies supported a clade of Monoplacophora+Polyplacophora (Serialia) and phylogenomic studies have generally recovered a clade of Monoplacophora+Cephalopoda. NO COMMON NAME (Laevipilina antarctica): SPECIES ACCOUNT. In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Org. Sci. Rep. 7, 3599 (2017). Micropilina arntzi seems limited to the shelf and upper slope of the Lazarev Sea. Grabherr, M. G. et al. Google Scholar. Ber Polarforsch Meeresforsch 70:1181, Haszprunar G, Schaefer K (1996) Anatomy and phylogenetic significance of Micropilina arntzi (Mollusca, Monoplacophora, Micropilinidae fam. Article 2023 . Wilson, N. G., Rouse, G. W. & Giribet, G. Assessing the molluscan hypothesis Serialia (Monoplacophora+ Polyplacophora) using novel molecular data. Nishiguchi, M. K. & Mapes, R. H. Cephalopoda. Encyclopedia.com. Polar Biol 29, 721727 (2006). Pick a style below, and copy the text for your bibliography. habitat. Bulletin 27, Royal Society of New Zealand, Wellington, p 311, Giribet G, Okusu A, Lindgren AR, Huff SW, Schrdl M, Nishiguchi MK (2006) Evidence for a clade composed of mollusks with serially repeated structuresmonopolacophorans are related to chitons. Mol. Neopilina comes from the Greek neos, or new, and pilion, or little cap. J. Zool. Science 186, 311317 (1974). 48, 27512772 (2014). The analysis was executed for 180 million generations sampling a tree every 1,000 generations. Palaeontology 58, 1934 (2015). . New evidence for diversity and complexity in the polyplacophoran central nervous system. CAS Evol. Lastly, sequences that did not overlap with all other sequences in the alignment by at least 20 amino acids were deleted, starting with the shortest sequences not meeting this criterion.
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