Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Article
  • Published:

Craniofacial development of hagfishes and the evolution of vertebrates

Abstract

Cyclostomes, the living jawless vertebrates including hagfishes and lampreys, represent the most basal lineage of vertebrates. Although the monophyly of cyclostomes has been supported by recent molecular analyses, the phenotypic traits of hagfishes, especially the lack of some vertebrate-defining features and the reported endodermal origin of the adenohypophysis, have been interpreted as hagfishes exhibiting a more ancestral state than those of all other vertebrates. Furthermore, the adult anatomy of hagfishes cannot be compared easily with that of lampreys. Here we describe the craniofacial development of a series of staged hagfish embryos, which shows that their adenohypophysis arises ectodermally, consistent with the molecular phylogenetic data. This finding also allowed us to identify a pan-cyclostome pattern, one not shared by jawed vertebrates. Comparative analyses indicated that many of the hagfish-specific traits can be explained by changes secondarily introduced into the hagfish lineage. We also propose a possibility that the pan-cyclostome pattern may reflect the ancestral programme for the craniofacial development of all living vertebrates.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Figure 1: Cyclostomes and gnathostomes.
Figure 2: Craniofacial development of E. burgeri.
Figure 3: Embryonic gene expression in Eptatretus burgeri.
Figure 4: Comparison of vertebrate heads.
Figure 5: Evolution of the vertebrate head.

Similar content being viewed by others

Accession codes

Primary accessions

DDBJ/GenBank/EMBL

Data deposits

Sequences for EbPitxA, EbSix3/6A, EbFgf8/17, EbHh1, EbTbx1/10A, EbSoxB1, EbLhx3/4A and EbNkx2.1 from E. burgeri are deposited in DDBJ/GenBank/EMBL under accession numbers AB703678AB703682, AB729075AB729076, and AB747372.

References

  1. Mallatt, J. & Sullivan, J. 28S and 18S rDNA sequences support the monophyly of lampreys and hagfishes. Mol. Biol. Evol. 15, 1706–1718 (1998)

    Article  CAS  Google Scholar 

  2. Kuraku, S., Hoshiyama, D., Katoh, K., Suga, H. & Miyata, T. Monophyly of lampreys and hagfishes supported by nuclear DNA-coded genes. J. Mol. Evol. 49, 729–735 (1999)

    Article  ADS  CAS  Google Scholar 

  3. Takezaki, N., Figueroa, F., Zaleska-Rutczynska, Z. & Klein, J. Molecular phylogeny of early vertebrates: monophyly of the agnathans as revealed by sequences of 35 genes. Mol. Biol. Evol. 20, 287–292 (2003)

    Article  CAS  Google Scholar 

  4. Kuraku, S. Insights into cyclostome phylogenomics: pre-2R or post-2R. Zoolog. Sci. 25, 960–968 (2008)

    Article  CAS  Google Scholar 

  5. Heimberg, A. M., Cowper-Sal-lari, R., Semon, M., Donoghue, P. C. & Peterson, K. J. microRNAs reveal the interrelationships of hagfish, lampreys, and gnathostomes and the nature of the ancestral vertebrate. Proc. Natl Acad. Sci. USA 107, 19379–19383 (2010)

    Article  ADS  CAS  Google Scholar 

  6. Janvier, P. Early Vertebrates (Oxford Univ. Press, 1996)

    Google Scholar 

  7. Gorbman, A. Early development of the hagfish pituitary gland: evidence for the endodermal origin of the adenohypophysis. Am. Zool. 23, 639–654 (1983)

    Article  Google Scholar 

  8. Gorbman, A. & Tamarin, A. In Evolutionary Biology of Primitive Fishes (eds Foreman, R. E., Gorbman, A., Dodd, J. M. & Olsson, R.) 165–185 (Plenum, 1985)

    Book  Google Scholar 

  9. Wicht, H. & Tusch, U. in The Biology of Hagfish (eds Jørgensen, J. M., Lomholt, J. R., Weber, R. E. & Molte, H.) 431–451 (Chapman & Hall, 1998)

    Book  Google Scholar 

  10. Soukup, V., Horácek, I. & Cerny, R. Development and evolution of the vertebrate primary mouth. J. Anat.. http://dx.doi.org/10.1111/j.1469-7580.2012.01540.x (16 July 2012)

  11. Forey, P. & Janvier, P. Agnathans and the origin of jawed vertebrates. Nature 361, 129–134 (1993)

    Article  ADS  Google Scholar 

  12. Gess, R. W., Coates, M. I. & Rubidge, B. S. A lamprey from the Devonian period of South Africa. Nature 443, 981–984 (2006)

    Article  ADS  CAS  Google Scholar 

  13. Marinelli, W. & Strenger, A. Vergleichende Anatomie und Morphologie der Wirbeltiere 2. Myxine Glutinosa (Franz. Deuticke, 1956)

    Google Scholar 

  14. Candiani, S., Holland, N. D., Oliveri, D., Parodi, M. & Pestarino, M. Expression of the amphioxus Pit-1 gene (A mphiPOU1F1/Pit-1) exclusively in the developing preoral organ, a putative homolog of the vertebrate adenohypophysis. Brain Res. Bull. 75, 324–330 (2008)

    Article  CAS  Google Scholar 

  15. Schlosser, G. Evolutionary origins of vertebrate placodes: insights from developmental studies and from comparisons with other deuterostomes. J. Exp. Zool. B 304, 347–399 (2005)

    Article  Google Scholar 

  16. von Kupffer, C. Studien zur Vergleichenden Entwicklungsgeschichte des Kopfes der Kranioten. Heft 4: Zur Kopfentwicklung von Bdellostoma 1–86 (Lehmann, 1900)

    Google Scholar 

  17. Adachi, N. & Kuratani, S. Development of head and trunk mesoderm in the dogfish, Scyliorhinus torazame. I. Embryology and morphology of the head cavities and related structures. Evol. Dev. 14, 234–256 (2012)

    Article  Google Scholar 

  18. Jean, D., Bernier, G. & Gruss, P. Six6 (Optx2) is a novel murine Six3-related homeobox gene that demarcates the presumptive pituitary/hypothalamic axis and the ventral optic stalk. Mech. Dev. 84, 31–40 (1999)

    Article  CAS  Google Scholar 

  19. Sugahara, F. et al. Involvement of Hedgehog and FGF signalling in the lamprey telencephalon: evolution of regionalization and dorsoventral patterning of the vertebrate forebrain. Development 138, 1217–1226 (2011)

    Article  CAS  Google Scholar 

  20. Uchida, K., Murakami, Y., Kuraku, S., Hirano, S. & Kuratani, S. Development of the adenohypophysis in the lamprey: evolution of epigenetic patterning programs in organogenesis. J. Exp. Zool. B 300, 32–47 (2003)

    Article  Google Scholar 

  21. Charles, M. A. et al. PITX genes are required for cell survival and Lhx3 activation. Mol. Endocrinol. 19, 1893–1903 (2005)

    Article  CAS  Google Scholar 

  22. Kuratani, S. Evolution of the vertebrate jaw from developmental perspectives. Evol. Dev. 14, 76–92 (2012)

    Article  Google Scholar 

  23. Kuratani, S. & Ota, K. G. Primitive versus derived traits in the developmental program of the vertebrate head: views from cyclostome developmental studies. J. Exp. Zool. B 310, 294–314 (2008)

    Article  Google Scholar 

  24. Maruoka, Y. et al. Comparison of the expression of three highly related genes, Fgf8, Fgf17 and Fgf18, in the mouse embryo. Mech. Dev. 74, 175–177 (1998)

    Article  CAS  Google Scholar 

  25. Koyama, H., Kishida, R., Goris, R. C. & Kusunoki, T. Organization of sensory and motor nuclei of the trigeminal nerve in lampreys. J. Comp. Neurol. 264, 437–448 (1987)

    Article  CAS  Google Scholar 

  26. Nishizawa, H., Kishida, R., Kadota, T. & Goris, R. C. Somatotopic organization of the primary sensory trigeminal neurons in the hagfish, Eptatretus burgeri. J. Comp. Neurol. 267, 281–295 (1988)

    Article  CAS  Google Scholar 

  27. Song, J. & Boord, R. L. Motor components of the trigeminal nerve and organization of the mandibular arch muscles in vertebrates: phylogenetically conservative patterns and their ontogenetic basis. Acta Anat. 148, 139–149 (1993)

    Article  CAS  Google Scholar 

  28. Ogasawara, M., Shigetani, Y., Hirano, S., Satoh, N. & Kuratani, S. Pax1/Pax9-related genes in an agnathan vertebrate, Lampetra japonica: expression pattern of LjPax9 implies sequential evolutionary events toward the gnathostome body plan. Dev. Biol. 223, 399–410 (2000)

    Article  CAS  Google Scholar 

  29. Tiecke, E. et al. Identification and developmental expression of two Tbx1/10-related genes in the agnathan Lethenteron japonicum. Dev. Genes Evol. 217, 691–697 (2007)

    Article  CAS  Google Scholar 

  30. Strahan, R. The velum and the respiratory current of Myxine. Acta Zool. 39, 227–240 (1958)

    Article  Google Scholar 

  31. Stockard, C. R. The development of the mouth and gills in Bdellostoma stouti. Am. J. Anat. 5, 481–517 (1906)

    Article  Google Scholar 

  32. Sower, S. A., Freamat, M. & Kavanaugh, S. I. The origins of the vertebrate hypothalamic–pituitary–gonadal (HPG) and hypothalamic–pituitary–thyroid (HPT) endocrine systems: new insights from lampreys. Gen. Comp. Endocrinol. 161, 20–29 (2009)

    Article  CAS  Google Scholar 

  33. Uchida, K. et al. Evolutionary origin of a functional gonadotropin in the pituitary of the most primitive vertebrate, hagfish. Proc. Natl Acad. Sci. USA 107, 15832–15837 (2010)

    Article  ADS  CAS  Google Scholar 

  34. Stockard, C. R. The embryonic history of the lens in Bdellostoma stouti in relation to recent experiments. Am. J. Anat. 6, 511–515 (1906)

    Article  Google Scholar 

  35. Ota, K. G., Fujimoto, S., Oisi, Y. & Kuratani, S. Identification of vertebra-like elements and their possible differentiation from sclerotomes in the hagfish. Nature Commun. 2, 373 (2011)

    Article  ADS  Google Scholar 

  36. Wicht, H. & Northcutt, R. G. Ontogeny of the head of the Pacific hagfish (Eptatretus stouti, Myxinoidea): development of the lateral line system. Phil. Trans. R. Soc. Lond. B 349, 119–134 (1995)

    Article  ADS  CAS  Google Scholar 

  37. Yalden, D. W. Feeding mechanisms as evidence for cyclostome monophyly. Zool. J. Linn. Soc. 84, 291–300 (1985)

    Article  Google Scholar 

  38. Janvier, P. Early jawless vertebrates and cyclostome origins. Zoolog. Sci. 25, 1045–1056 (2008)

    Article  Google Scholar 

  39. Bardack, D. First fossil hagfish (Myxinoidea): a record from the Pennsylvanian of Illinois. Science 254, 701–703 (1991)

    Article  ADS  CAS  Google Scholar 

  40. Davis, S. P., Finarelli, J. A. & Coates, M. I. Acanthodes and shark-like conditions in the last common ancestor of modern gnathostomes. Nature 486, 247–250 (2012)

    Article  ADS  CAS  Google Scholar 

  41. Stensiö, E. A. The Downtonian and Devonian Vertebrates of Spitsbergen. Part 1: Family Cephalaspidae (Arno, 1927)

    Google Scholar 

  42. Gai, Z., Donoghue, P. C., Zhu, M., Janvier, P. & Stampanoni, M. Fossil jawless fish from China foreshadows early jawed vertebrate anatomy. Nature 476, 324–327 (2011)

    Article  ADS  CAS  Google Scholar 

  43. Ota, K. G., Kuraku, S. & Kuratani, S. Hagfish embryology with reference to the evolution of the neural crest. Nature 446, 672–675 (2007)

    Article  ADS  CAS  Google Scholar 

  44. Dean, B. On the embryology of Bdellostoma stouti. A genera account of myxinoid development from the egg and segmentation to hatching. Festschrift zum 70ten Geburststag Carl von Kupffer 220–276 (Gustav Fischer, 1899)

    Google Scholar 

  45. Katoh, K., Kuma, K., Toh, H. & Miyata, T. MAFFT version 5: improvement in accuracy of multiple sequence alignment. Nucleic Acids Res. 33, 511–518 (2005)

    Article  CAS  Google Scholar 

  46. Steinberg, M. A nonnutrient culture medium for amphibian embryonic tissues. Year B. Carnegie Inst. Wash. 56, 347–348 (1957)

    Google Scholar 

  47. Tahara, Y. Normal stages of development in the lamprey, Lampetra reissneri (Dybowski). Zoolog. Sci. 5, 109–118 (1988)

    Google Scholar 

  48. Horigome, N. et al. Development of cephalic neural crest cells in embryos of Lampetra japonica, with special reference to the evolution of the jaw. Dev. Biol. 207, 287–308 (1999)

    Article  CAS  Google Scholar 

  49. Takio, Y. et al. Hox gene expression patterns in Lethenteron japonicum embryos: insights into the evolution of the vertebrate Hox code. Dev. Biol. 308, 606–620 (2007)

    Article  CAS  Google Scholar 

  50. Ballard, W. W., Mellinger, J. & Lechenaut, H. A series of normal stages for development of Scyliorhinus canicula, the lesser spotted dogfish (Chondrichthyes: Scyliorhinidae). J. Exp. Zool. 267, 318–336 (1993)

    Article  Google Scholar 

Download references

Acknowledgements

We thank O. Kakitani of Shimane Fishermen’s Union and K. Kayano of Sekikatsu Inc. for hagfish sample collection; T. Kawamoto for technical advice on paraffin sectioning; I. Kamimura for advice on the Avizo technique; T. Imai and Y. Ashida for advice on the technique for section in situ hybridization; and M. Takechi, T. Hirasawa, N. Adachi, Y. Murakami, S. Yonemura, K. Misaki, K. Yasui, S.-i. Aota, M. Nozaki and H. Koyama for their technical support and advice. We also thank M. Tanaka and K. Onimaru for providing the LjTbx1/10A plasmid, and H. Nagashima, R. Ladher, F. Sugahara and J. Pascual Anaya for critical reading of the manuscript.

Author information

Authors and Affiliations

Authors

Contributions

Y.O. performed sample collection, maintenance of aquarium tanks, histological preparation and three-dimensional reconstructions. Y.O. and S.F. performed the molecular cloning of EbPitxA, EbSix3/6A, EbFgf8/17A, EbHh1, EbTbx1/10A, EbSoxB1, EbLhx3/4A and EbNkx2.1 genes and in situ hybridization. S. Kuraku performed the molecular evolutionary analysis. Y.O. and S. Kuratani wrote the first draft of the manuscript. K.G.O., S. Kuraku and S. Kuratani wrote the final version of the manuscript. All of the authors discussed the results and commented on the manuscript.

Corresponding author

Correspondence to Shigeru Kuratani.

Ethics declarations

Competing interests

The authors declare no competing financial interests.

Supplementary information

Supplementary Information

This file contains Supplementary Figures 1-12, which show embryonic morphological data, Supplementary Table 1 and additional references. (PDF 12829 kb)

PowerPoint slides

Rights and permissions

Reprints and permissions

About this article

Cite this article

Oisi, Y., Ota, K., Kuraku, S. et al. Craniofacial development of hagfishes and the evolution of vertebrates. Nature 493, 175–180 (2013). https://doi.org/10.1038/nature11794

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/nature11794

This article is cited by

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing