Xenoturbella bocki exhibits direct development with similarities to Acoelomorpha

Nature Communications

Volumn 4, Issue , 2013, Pages

  Nakano, Hiroaki ^a,b   Lundin, Kennet ^c   Bourlat, Sarah J ^a,c   Telford, Maximilian J ^d   Funch, Peter ^e   Nyengaard, Jens R ^f   Obst, Matthias ^a   Thorndyke, Michael C ^a,g  

^a UNIVERSITY OF GOTHENBURG   (Sweden)

^b UNIVERSITY OF TSUKUBA   (Japan)

^c SWEDISH MUSEUM OF NATURAL HISTORY   (Sweden)

^d UNIVERSITY COLLEGE LONDON   (United Kingdom)

^e AARHUS UNIVERSITY   (Denmark)

^f AARHUS UNIVERSITY HOSPITAL   (Denmark)

^g GÖTEBORG UNIVERSITY   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

AQUATIC ORGANISM; BODY SHAPE; COMMON ANCESTRY; DEVELOPMENTAL STAGE; EMBRYO; INVERTEBRATE; LIFE CYCLE; MARINE ENVIRONMENT; PHYLOGENETICS; RELATEDNESS; TAXONOMY;

ARTICLE; EMBRYO; EMBRYO DEVELOPMENT; EPIDERMIS; EUKARYOTIC FLAGELLUM; EXTRACELLULAR MATRIX; LARVA; MARINE SPECIES; MYOFILAMENT; NONHUMAN; NUCLEOTIDE SEQUENCE; PHYLUM; XENOTURBELLA BOCKI;

ANIMALS; BIOLOGICAL EVOLUTION; EMBRYO, NONMAMMALIAN; FEEDING BEHAVIOR; FERTILIZATION; LARVA; MICROSCOPY, CONFOCAL; MODELS, BIOLOGICAL; MOLECULAR SEQUENCE DATA; OVUM; SWIMMING; TURBELLARIA;

EID: 84874629999     PISSN: None     EISSN: 20411723     Source Type: Journal    
DOI: 10.1038/ncomms2556     Document Type: Article

References (35)

1. Westblad, E. Xenoturbella bocki n. g, n. sp, a peculiar, primitive turbellarian type. Ark. Zool. 1, 3-29 (1949)
2. Telford, M. J. Xenoturbellida: The fourth deuterostome phylum and the diet of worms. Genesis 46, 580-586 (2008)
3. Hejnol, A. et al. Assessing the root of the bilaterian animals with scalable phylogenomic methods. Proc. R. Soc. Lond. B Biol. Sci. 276, 4261-4270 (2009)
4. Philippe, H. et al. Acoelomorph flatworms are deuterostomes related to Xenoturbella. Nature 470, 255-258 (2011)
5. Gardiner, E. G. Early development of Polychoerus caudatus, Mark. J. Morphol. 11, 155-176 (1895)
6. Ramachandra, N. B., Gates, R. D., Ladurner, P., Jacobs, D. K. & Hartenstein, V. Embryonic development in the primitive bilaterian Neochildia fusca: normal morphogenesis and isolation of POU genes Brn-1 and Brn-3. Dev. Genes Evol. 212, 55-69 (2002) (Pubitemid 36075534)
7. Henley, C. in Reproduction of Marine Invertebrates (Acoelmate and Pseudocoelomate Metazoans) (eds Giese, A. C. & Pearse, J. S. ) Vol. 1, 267-343 (Academic Press, 1974)
8. Israelsson, O. & Budd, G. E. Eggs and embryos in Xenoturbella (phylum uncertain) are not ingested prey. Dev. Genes Evol. 215, 358-363 (2005) (Pubitemid 41038866)
9. Israelsson, O. New light on the enigmatic Xenoturbella (phylum uncertain): ontogeny and phylogeny. Proc. R. Soc. Lond. B Biol. Sci. 266, 835-841 (1999) (Pubitemid 29204214)
10. Bourlat, S. J., Nielsen, C., Lockyer, A. E., Littlewood, D. T. J. & Telford, M. J. Xenoturbella is a deuterostome that eats molluscs. Nature 424, 925-928 (2003) (Pubitemid 37051680)
11. Bourlat, S. J. et al. Feeding ecology of Xenoturbella bocki (phylum Xenoturbellida) revealed by genetic barcoding. Mol. Ecol. Resour. 8, 18-22 (2008) (Pubitemid 350231217)
12. Kjeldsen, K. U., Obst, M., Nakano, H., Funch, P. & Schramm, A. Two types of endosymbiotic bacetria in the enigmatic marine worm Xenoturbella bocki. Appl. Env. Microbiol. 76, 2657-2662 (2010)
13. Lundin, K. The epidermal ciliary rootlets of Xenoturbella bocki (Xenoturbellida) revisited: new support for a possible kinship with the Acoelomorpha (Platyhelminthes). Zool. Scr. 27, 263-270 (1998) (Pubitemid 28374062)
14. Ehlers, U. & Sopott-Ehlers, B. Ultrastructure of the subepidermal musculature of Xenoturbella bocki, the adelphotaxon of the Bilateria. Zoomorphology 117, 71-79 (1997) (Pubitemid 127500959)
15. Raikova, O. I., Reuter, M., Jondelius, U. & Gustafsson, K. S. An immunocytochemical and ultrastructural study of the nervous and muscular systems of Xenoturbella westbladi (Bilateria inc. sed. ). Zoomorphology 120, 107-118 (2000)
16. Lundin, K. Degenerating epidermal cells in Xenoturbella bocki (phylum uncertain), Nemertodermatida and Acoela (Platyhelminthes). Belg. J. Zool. 131, 153-157 (2001)
17. Achatz, J. G. & Martinez, P. The nervous system of Isodiametra pulchra (Acoela) with a discussion on the neuroanatomy of the Xenacoelomorpha and its evolutionary implications. Front. Zool. 9, 27 (2012)
18. Fautin, D. G. & Mariscal, R. N. in Microscopic Anatomy of Invertebrates (Placozoa, Porifera, Cnidaria, and Ctenophora) (eds Harrison, F. H. & Westfall, J. A. ) Vol. 2, 267-358 (Wiley-Liss, Inc., 1991)
19. Lester, S. M. Ultrastructure of adult gonads and development and structure of the larva of Rhabdopleura normani (Hemichordata: Pterobranchia). Acta Zool. 69, 95-109 (1988)
20. Emlet, R. B. Body formation and patterns of ciliation in nonfeeding larvae of echinoderms: functional solutions to swimming in the plankton? Am. Zool. 34, 570-585 (1994)
21. Nakano, H., Hibino, T., Oji, T., Hara, Y. & Amemiya, S. Larval stages of a living sea lily (stalked crinoid echinoderm). Nature 421, 158-160 (2003) (Pubitemid 36090980)
22. Maslakova, S. A., Martindale, M. Q. & Norenburg, J. L. Vestigial prototroch in a basal nemertean, Carinoma tremaphoros (Nemertea; Palaeonmertea). Evol. Dev. 6, 219-226 (2004) (Pubitemid 38946010)
23. De Mendoza, A. & Ruiz-Trillo, I. The mysterious evolutionary origin for the GNE gene and the root of the Bilateria. Mol. Biol. Evol. 28, 2987-2991 (2011)
24. Metschnikoff, E. Ü ber die systematische Stellung von Balanoglossus. Zool. Anz. 4, 139-143 (1881)
25. Sly, B. J., Snoke, M. S. & Raff, R. A. Who came first-larvae or adults? Origins of bilaterian metazoan larvae. Int. J. Dev. Biol. 47, 623-632 (2003) (Pubitemid 38112086)
26. Lacalli, T. C. Protochordate body plan and the evolutionary role of larvae: old controversies resolved? Can. J. Zool. 83, 216-224 (2005) (Pubitemid 40902372)
27. Raff, R. A. Origins of the other metazoan body plans: the evolution of larval forms. Proc. R. Soc. Lond. B Biol. Sci. 363, 1473-1479 (2008) (Pubitemid 351363976)
28. Garstang, W. Preliminary note on a new theory of the phylogeny of the Chordata. Zool. Anz. 17, 122-125 (1894)
29. Jägersten, G. Evolution of the Metazoan Life Cycle (Academic Press, 1972)
30. Nielsen, C. Origin of the chordate central nervous system-and the origin of chordates. Dev. Genes Evol. 209, 198-205 (1999) (Pubitemid 29116597)
31. Nielsen, C. Animal Evolution-Interrelationships of the Living Phyla. 2nd edn. (Oxford University Press, 2001)
32. Reynolds, E. S. Use of lead citrate at high pH as an electron-opaque stain in electron microscopy. J. Cell Biol. 17, 208-212 (1963)
33. Folmer, O., Black, M., Hoeh, W., Lutz, R. & Vrijenhoek, R. DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Mol. Mar. Biol. Biotechnol. 3, 294-299 (1994)
34. Arendt, D., Technau, U. & Wittbrodt, J. Evolution of the bilaterian larval foregut. Nature 409, 81-85 (2001) (Pubitemid 32098628)
35. Kamm, K., Schierwater, B., Jakob, W., Dellaporta, S. L. & Miller, D. J. Axial patterning and diversification in the Cnidaria predate the Hox system. Curr. Biol. 16, 920-926 (2006).