Studies on the hypothalamic-pituitary control of fish reproduction

Nippon Suisan Gakkaishi (Japanese Edition)

Volumn 68, Issue 4, 2002, Pages 497-499

  Gen, Koichiro ^a  

^a FISHERIES RESEARCH AGENCY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0036025488     PISSN: 00215392     EISSN: None     Source Type: Journal    
DOI: 10.2331/suisan.68.497     Document Type: Short Survey

References (15)

1. Senthilkumaran B, Okuzawa K, Gen K, Ookura T, Kagawa H. Distribution and seasonal variations in levels of three native GnRHs in the brain and pituitary of perciform fish. J. Neuroendocrinol. 1999; 11: 181-186.
2. Suetake H, Yoshiura Y, Kikuchi K, Gen K, Ashihara M, Kobayashi M, Aida K. Two salmon gonadotropin-releasing hormone genes and their differential expression in goldfish, Carassius auratus. Fish. Sci. 2000; 66: 49-57.
3. Suzuki K, Kawauchi H, Nagahama Y. Isolation and characterization of two distinct gonadotropins from chum salmon pituitary glands. Gen. Comp. Endocrinol. 1988; 71: 292-301.
4. Gen K, Okuzawa K, Senthilkumaran B, Tanaka H, Moriyama S, Kagawa H. Unique expression of gonadotropin -I and -II subunit genes in male and female red seabream (Pagrus major) during sexual maturation. Biol. Reprod. 2000; 63: 308-319.
5. Gen K, Maruyama O, Kato T, Tomizawa T, Wakabayashi K, Kato Y. Molecular cloning of cDNAs encoding two types of gonadotropin α-subunits from the masu salmon, Oncorhynchus masou: Constraction of specific oligo-nucleotides for α1- and α2-subunits. J. Mol. Endocrinol. 1993; 11: 265-273.
6. Kato Y, Gen K, Maruyama O, Tomizawa T, Kato T. Molecular cloning of cDNAs encoding two gonadotropin β-subunits (GTH Iβ and GTH IIβ) from the masu salmon, Oncorhynchus masou: Rapid divergence of the GTH Iβ gene. J. Mol. Endocrinol. 1993; 11: 275-282.
7. Nagae M, Todo T, Gen K, Kato Y, Young G, Adachi S, Yamauchi K. Molecular cloning of the cDNAs encoding pituitary glycoprotein hormone α- and gonadotropin IIβ-subunits of the Japanese eel, Anguilla japonica, and increase their mRNAs during ovarian development induced by injection of chum salmon pituitary homogenate. J. Mol. Endocrinol. 1996; 16: 171-181.
8. Tanaka H, Kagawa H, Okuzawa K, Hirose K. Purification of gonadotropins (PmGTH I and II) from red seabream (Pagrus major) and development of a homologous radioimmunoassay for PmGTH II. Fish Physiol. Biochem. 1993; 10: 409-418.
9. Tanaka H, Kagawa H, Hirose K. Steroidogenic activities of two distinct gonadotropins in red seabream, Pagrus major. In: Goetz FW, Thomas P. (eds) Proceeding of the Fifth International Symposium on the Reproductive Physiology of Fish. University of Texas, Austin. 1995; 10-12.
10. Kagawa H, Tanaka H, Okuzawa K, Kobayashi M. GTH II but not GTH I induces final maturation and the development of maturational competence of oocytes of the red seabream in vitro. Gen. Comp. Endocrinol. 1998; 112: 80-88.
11. Gen K, Okuzawa K, Kumakura N, Yamaguchi S, Kagawa H. Correlation between mRNA expression of cytochrome P450 aromatase and its enzyme activity during oocyte development in red seabream (Pagrus major). Biol. Reprod. 2001; 65: 186-194.
12. Gen K, Okuzawa K, Tanaka H, Kagawa H. Sexual dimorphism of gonadotropin Iβ gene expression in red seabream, Pagrus major. Fish. Sci. 2002; 68 (in press).
13. Okuzawa K, Kumakura N, Mori A, Gen K, Yamaguchi S, Kagawa H. Regulation of GnRH and its receptor in a teleost, red seabream. Prog. Brain Res. 2002 (in press).
14. Yamaguchi S, Gen K, Okuzawa K, Matuyama M, Kagawa H. Effects of gonadal steroids on gonadotropin genes expression in male red seabream (Pagrus major). Fish. Sci. 2002; 68 (in press).
15. th International Congress of Comparative Endocrinolgy. Monduzzi Editore, Bologna. 1997; 861-865.