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Gonadotropin-releasing hormone in two perciform fishes: Micropogonias furnieri and Pagrus pagrus

Abstract

Gonadotropin-releasing hormone (GnRH) molecular variants were characterized by gradient reverse phase high performance liquid chromatography (RP)-HPLC) from brain extracts of two perciforms with economic importance for Argentina and Uruguay. RP-HPLC fractions were tested in radioimmunoassays (RIAs) with both poly-specific and specific antisera. Both species showed the presence of the same three molecular forms, immunologically and chromatographically indistinguishable from sbGnRH, cGnRH-II and sGnRH. This study supports the hypothesis that their expression is a common pattern in perciforms.

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References

  • Alok, D., Kumar, R.S., Trant, J.M. and Zohar, Y. 2001. Recombinant perciform GnRH-R activates different signaling pathways in fish and mammalian heterologous cell lines. Comp. Biochem. Physiol. 129B: 375–380.

    Google Scholar 

  • Carolsfeld, J., Powell, J.F.F., Park, M., Fischer, W.H., Craig, G., Chang, J.P., Rivier, J.E. and Sherwood, N. 2000. Primary structure and function of three gonadotropin-releasing hormones, including a novel form, from an ancient teleost, herring. Endocrinology 141: 505–512.

    Google Scholar 

  • Gothilf, Y., Muñoz-Cueto, J.A., Sagrillo, C., Selmanoff, M., Chen, T., Kah, O., Elizur, A. and Zohar Y. 1996. Three forms of gonadotropin-releasing hormone in perciform fish (Spaurus aurata): Complementary deoxyribonucleic acid characterization and brain localization. Biol. Reprod. 55: 636–645.

    Google Scholar 

  • Khan, I.A., Mathews, S., Okuzawa, K., Kagawa, H. and Thomas, P. 2001. Alterations in the GnRH-LH system in relation to gonadal stage and Aroclor 1254 exposure in Atlantic Croaker. Comp. Biochem. Physiol. 129B: 251–259.

    Google Scholar 

  • Khan, I.A. and Thomas, P. 1993. Immunocytochemical localization of serotonin and Gonadotropinreleasing hormone in the brain and pituitary gland of the atlantic croaker Micropogonias undulatus. Gen. Comp. Endocrinol. 91: 167–180.

    Google Scholar 

  • Montaner, A.D., Park, M., Fischer, W.H., Craig, A.G., Chang, J.P., Somoza, G.M., Rivier, J.E. and Sherwood, N.M. 2001. Primary structure of a novel gonadotropin-releasing hormone (GnRH) variant in the brain of pejerrey (Odontesthes bonariensis). Endocrinology 142: 1453–1460.

    Google Scholar 

  • González-Martínez, D., Madigou, T., Zmora, N., Anglade, I., Zanuy, S., Zohar, Y., Elizur, A., Muñoz-Cueto, J.A. and Kah, O. 2001. Differential expression of three different prepro-GnRH messengers in the brain of the European Sea bass (Dicentrarchus labrax). J. Comp. Neurol. 429: 144–155.

    Google Scholar 

  • Nelson, J.S. 1994. Fishes of the World. Third Edition. Wiley, New York.

    Google Scholar 

  • Okubo, K., Amano, M., Yoshiura, Y., Suetake, H. and Aida, K. 2000. A novel form of gonadotropinreleasing hormone in the medaka, Oryzias latipes. Biochem. Biophys. Res. Commun. 276: 298–303.

    Google Scholar 

  • Okuzawa, K., Amano, M., Aida, K., Hasegawa, Y., Tanaka, H. and Kagawa, H. 1993. Chromatographic and immunological identifi-cation of gonadotropin-releasing hormone in five marine teleosts. Fish Physiol. Biochem. 12: 337–345.

    Google Scholar 

  • Parhar, I.S. 1997. GnRH in tilapia: Three genes, three origins and their roles. In: GnRH neurons: genes to behaviour. pp. 99–123. Edited by Parhar, I. and Sakuma, Y. Brain Shuppan, Japan.

    Google Scholar 

  • Powell, J.F.F., Zohar, Y., Elizur, A., Park, M., Fischer, W.H., Craig, A., Rivier, J.E., Lovejoy, D. and Sherwood, N. 1994. Three forms of gonadotropin-releasing hormone characterized from brains of one species. Proc. Natl. Acad. Sci. USA 91: 12081–12085.

    Google Scholar 

  • Senthilkumaran, B., Okuzawa, K., Gen, K., Ookura, T. and Kagawa, H. 1999. Distribution and seasonal variations in levels of three native GnRHs in the brain and pituitary of perciform fish. J. Neuroendocrinol. 11: 181–186.

    Google Scholar 

  • Sherwood, N.M, von Schalburg, K. and Lescheid, D.W. 1997. Origin and evolution of GnRH in vertebrates and invertebrates. In: GnRH Neurons: Gene to Behavior. pp. 3–25. Edited by Parhar, I. and Sakuma, Y. Brain Shuppan, Tokyo.

    Google Scholar 

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Montaner, A., Miranda, L., Vizziano, D. et al. Gonadotropin-releasing hormone in two perciform fishes: Micropogonias furnieri and Pagrus pagrus . Fish Physiology and Biochemistry 24, 243–246 (2001). https://doi.org/10.1023/A:1014062415118

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  • DOI: https://doi.org/10.1023/A:1014062415118

  • GnRH
  • perciform fish
  • radioimmunoassay