Phylogenetic position of Loricifera inferred from nearly complete 18S and 28S rRNA gene sequences
Tóm tắt
Loricifera is an enigmatic metazoan phylum; its morphology appeared to place it with Priapulida and Kinorhyncha in the group Scalidophora which, along with Nematoida (Nematoda and Nematomorpha), comprised the group Cycloneuralia. Scarce molecular data have suggested an alternative phylogenetic hypothesis, that the phylum Loricifera is a sister taxon to Nematomorpha, although the actual phylogenetic position of the phylum remains unclear. Ecdysozoan phylogeny was reconstructed through maximum-likelihood (ML) and Bayesian inference (BI) analyses of nuclear 18S and 28S rRNA gene sequences from 60 species representing all eight ecdysozoan phyla, and including a newly collected loriciferan species. Ecdysozoa comprised two clades with high support values in both the ML and BI trees. One consisted of Priapulida and Kinorhyncha, and the other of Loricifera, Nematoida, and Panarthropoda (Tardigrada, Onychophora, and Arthropoda). The relationships between Loricifera, Nematoida, and Panarthropoda were not well resolved. Loricifera appears to be closely related to Nematoida and Panarthropoda, rather than grouping with Priapulida and Kinorhyncha, as had been suggested by previous studies. Thus, both Scalidophora and Cycloneuralia are a polyphyletic or paraphyletic groups. In addition, Loricifera and Nematomorpha did not emerge as sister groups.
Tài liệu tham khảo
Kristensen RM. Loricifera, a new phylum with Aschelminthes characters from the meiobenthos. Z Zool Syst Evol. 1983;21:163–80.
Bang-Berthelsen IH, Schmidt-Rhaesa A, Kristensen RM. Loricifera. In: Schmidt-Rhaesa A. Handbook of zoology. Gastrotricha, Cycloneuralia and Gnathifera. Vol. 1: Nematomorpha, Priapulida, Kinorhyncha, Loricifera. Berlin: De Gruyter; 2013. p. 307–28.
Kristensen RM, Neves RC, Gad G. First report of Loricifera from the Indian Ocean: a new Rugiloricus-species represented by a hermaphrodite. Cah Biol. 2013;54:161–71.
Pardos F, Kristensen RM. First record of Loricifera from the Iberian Peninsula, with the description of Rugiloricus manuelae sp. nov., (Loricifera, Pliciloricidae). Helgoland Mar Res. 2013;67:623–38.
Neves RC, Kristensen RM. A new type of loriciferan larva (Shira larva) from the deep sea of Shatsky Rise Pacific Ocean. Org Divers Evol. 2014;14:163–71.
Neves RC, Gambi C, Danovaro R, Kristensen RM. Spinoloricus cinziae (Phylum Loricifera), a new species from a hypersaline anoxic deep basin in the Mediterranean Sea. Syst Biodivers. 2014;12:489–502.
Danovaro R, Dell’Anno A, Pusceddu A, Gambi C, Heiner I, Kristensen RM. The first metazoa living in permanently anoxic conditions. BioMed Central Biology. 2010;8:30.
Heiner I, Kristensen RM. Urnaloricus gadi nov. gen. et nov. sp. (Loricifera, Urnaloricidae nov. fam.), an aberrant Loricifera with a viviparous pedogenetic life cycle. J Morphol. 2008;270:129–53.
Neuhaus B. Ultrastructure of alimentary canal and body cavity, ground pattern, and phylogenetic relationships of the Kinorhyncha. Microfauna Marina. 1994;9:61–156.
Lemburg C. Ultrastructure of sense organs and receptor cells of the neck and lorica of Halicryptus spinulosus larva (Priapulida). Microfauna Marina. 1995;10:7–30.
Neuhaus B, Higgins RP. Ultrastructure, biology, and phylogenetic relationships of Kinorhyncha. Integr Comp Biol. 2002;42:619–32.
Malakhov VV. Cephalorhyncha, a new type of the animal kingdom uniting Priapulida, Kinorhyncha, and Gordiacea, and a system of Aschelminthes worms. Zool Zh. 1980;59:485–99.
Adrianov AV, Malakhov VV. The phylogeny and classification of the phylum Cephalorhyncha. Zoosyst Ross. 1995;3:181–201.
Adrianov AV, Malakhov VV. The phylogeny and classification of the class Kinorhyncha. Zoosyst Ross. 1996;4:23–44.
Adrianov AV, Malakhov VV. Cephalorhyncha of the world oceans. Moscow: KMK Scientific Press; 1999.
Kristensen RM, Higgins RP. Kinorhyncha. In: Harrison FW, Ruppert EE, editors. Microscopic anatomy of invertebrates, vol. 4. New York: Wiley-Liss; 1991. p. 377–404.
Schmidt-Rhaesa A, Bartolomaeus T, Lemburg C, Ehlers U, Garey JR. The position of the Arthropoda in the phylogenetic system. J Morphol. 1998;238:263–85.
Nielsen C. Animal evolution. 2nd ed. Oxford: Oxford University Press; 2001.
Kristensen RM. Comparative morphology: do the ultrastructural investigations of Loricifera and Tardigrada support the clade Ecdysozoa? In: Legakis A, Sfenthourakis S, Polymeni R, Thessalou-Leagaki M, editors. The new panorama of animal evolution. Proceedings of the 18th International Congress of Zoology. Moscow: Pensoft Publishers, Sofia; 2003. p. 467–77.
Richter S, Loesel R, Purschke G, Schmidt-Rhaesa A, Scholtz G, Stach T, et al. Invertebrate neurophylogeny: suggested terms and definitions for a neuroanatomical glossary. Front Zool. 2010;7:29.
Schmidt-Rhaesa A, Rothe BH, Wägele JW, Bartolomaeus T. Brains in Gastrotricha and Cycloneuralia — a comparison. In: . Deep metazoan phylogeny: the backbone of the Tree of Life. New insights from analyses of molecules, morphology, and theory of data analysis. Berlin: De Gruyter; 2014. p. 93–104.
Sørensen MV, Hebsgaard MB, Heiner I, Glenner H, Willerslev E, Kristensen RM. New data from an enigmatic phylum: evidence from molecular sequence data supports a sister-group relationship between Loricifera and Nematomorpha. J Zool Syst Evol Res. 2008;46:231–9.
Park JK, Rho HS, Kristensen RM, Kim W, Giribet G. First molecular data on the phylum Loricifera — an investigation into the phylogeny of Ecdysozoa with emphasis on the positions of Loricifera and Priapulida. Zool Sci. 2006;23:943–54.
Mallatt J, Giribet G. Further use of nearly complete 28S and 18S rRNA genes to classify Ecdysozoa: 37 more arthropods and kinorhynch. Mol Phylogenet Evol. 2006;40:772–94.
Dunn CW, Hejnol A, Matus DW, Pang K, Browne WE, Smith SA, et al. Broad phylogenomic sampling improves resolution of the animal tree of life. Nature. 2008;452:745–9.
Campbell LI, Rota-Stabelli O, Edgecombe GD, Marchioro T, Longhorn SJ, Telford MJ, et al. MicroRNAs and phylogenomics resolve the relationships of Tardigrada and suggest that velvet worms are the sister group of Arthropoda. Proc Natl Acad Sci U S A. 2011;38:15920–4.
Mallatt J, Craig CW, Yoder MJ. Nearly complete rRNA genes from 371 Animalia: updated structure-based alignment and detailed phylogenetic analysis. Mol Phylogenet Evol. 2012;64:603–17.
Borner J, Rehm P, Schill RO, Ebersberger I, Burmester T. A transcriptome approach to ecdysozoan phylogeny. Mol Phylogenet Evol. 2014;80:79–87.
Rota-Stabelli O, Daley AC, Pisani D. Molecular timetrees reveal a cambrian colonization of land and a new scenario for ecdysozoan evolution. Curr Biol. 2013;23:392–8.
Meiobenthology GO. The microscopic motile fauna of aquatic sediments. Berlin: Springer Verlag; 2009.
Yamasaki H, Hiruta SF, Kajihara H. Molecular phylogeny of kinorhynchs. Mol Phylogenet Evol. 2013;67:303–10.
Tamura K, Peterson D, Peterson N, Stecher G, Nei M, Kumar S. MEGA5: Molecular Evolutionary Genetics Analysis using Maximum Likelihood, Evolutionary Distance, and Maximum Parsimony Methods. Mol Biol Evol. 2011;28:2731–9.
Katoh K, Toh H. Parallelization of the MAFFT multiple sequence alignment program. Bioinformatics. 2010;26:1899–900.
Capella-Gutierrez S, Silla-Martinez JM, Gabaldon T. TrimAl: a tool for automated alignment trimming in large-scale phylogenetic analyses. Bioinformatics. 2009;25:1972–3.
Tanabe AS. KAKUSAN: a computer program to automate the selection of a nucleotide substitution model and the configuration of a mixed model on multilocus data. Mol Ecol Notes. 2007;7:962–4.
Stamatakis A. RAxML-VI-HPC: maximum likelihood-based phylogenetic analyses with thousands of taxa and mixed models. Bioinformatics. 2006;22:2688–90.
Silvestro D, Michalak I. raxmlGUI: a graphical front-end for RAxML. Org Divers Evol. 2012;12:335–7.
Ronquist F, Huelsenbeck JP. MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics. 2003;19:1572–4.
Huelsenbeck JP, Ronquist F. MrBayes: Bayesian inference of phylogeny. Bioinformatics. 2001;17:754–5.