LH responses to single doses of exogenous GnRH in the Cape mole rat (Georychus capensis): The pituitary potential for opportunistic breeding

Journal of Zoology

Volumn 271, Issue 2, 2007, Pages 198-202

  Oosthuizen, M K ^a   Bennett, N C ^a  

^a UNIVERSITY OF PRETORIA   (South Africa)

Author keywords

Breeding; Cape mole rat; GnRH; LH; Reproduction; Seasonality

Indexed keywords

BREEDING SEASON; ENVIRONMENTAL FACTOR; HORMONE; REPRODUCTIVE BEHAVIOR; RODENT;

AFRICA; SOUTH AFRICA; SOUTHERN AFRICA; SUB-SAHARAN AFRICA; WESTERN CAPE;

GEORYCHUS CAPENSIS; RATTUS;

EID: 33846474759     PISSN: 09528369     EISSN: 14697998     Source Type: Journal    
DOI: 10.1111/j.1469-7998.2006.00201.x     Document Type: Article

References (34)

1. Bennett, N.C. (1994). Reproductive suppression in social Cryptomys damarensis colonies - a lifetime of socially-induced sterility in males and females (Rodentia: Bathyergidae). J. Zool. (Lond.) 234, 25-39.
2. Bennett, N.C., Faulkes, C.G. & Molteno, A.J. (2000). Reproduction in subterranean rodents. In Life underground: 145-177. Cameron, G.N., Lacey, E.A. & Patton, J. (Eds). Chicago, USA: University of Chicago Press.
3. Bennett, N.C., Faulkes, C.G. & Spinks, A.C. (1997). LH responses to single doses of exogenous GnRH by social Mashona mole-rats: a continuum of socially induced infertility in the family Bathyergidae. Proc. Roy. Soc. Lond. 264, 1001-1006.
4. Bennett, N.C. & Jarvis, J.U.M. (1988). The reproductive biology of the Cape mole-rat, Georychus capensis (Rodentia, Bathyergidae). J. Zool. (Lond.) 214, 95-106.
5. Bennett, N.C., Jarvis, J.U.M. & Davies, K.C. (1988). Daily and seasonal temperatures in the burrows of African rodent moles. S. Afr. J. Zool. 23, 189-195.
6. Bennett, N.C., Jarvis, J.U.M., Faulkes, C.G. & Millar, R.P. (1993). LH responses to single doses of exogenous GnRH by freshly captured Damaraland mole-rats, Cryptomys damarensis. J. Reprod. Fertil. 99, 81-86.
7. Busch, C., Malizia, A.I., Scaglia, O.A. & Reig, O.A. (1989). Spatial distribution and attributes of a population of Ctenomys talarum (Rodentia: Octodontidae). J. Mammal. 70, 204-208.
8. Desjardins, C., Ewing, I. & Johnson, B.H. (1971). Effect of light deprivation upon the spermatogenic and steriodogenic elemenst of hamster testes. Endocrinology 89, 791-800.
9. Drury, R.A.B. & Wallington, E.A. (1967). Carleton's histological technique. London: Oxford University Press.
10. Faulkes, C.G., Abbott, D.H. & Jarvis, J.U.M. (1990). Social suppression of reproduction of ovarian cyclicity in captive and wild colonies of naked mole-rats (Heterocephalus glaber). J. Reprod. Fertil. 88, 559-568.
11. Faulkes, C.G., Abbott, D.H. & Jarvis, J.U.M. (1991). Social suppression of reproduction in male naked mole-rats, Heterocephalus glaber. J. Reprod. Fertil. 91, 593-604.
12. Gerlach, T. & Aurich, J.E. (2000). Regulation of seasonal reproductive activity in the stallion, ram and hamster. Anim. Reprod. Sci. 58, 197-213.
13. Gottreich, A., Hammel, I., Yogev, L. & Terkel, J. (2000). Effect of photoperiod variation on testes and accessory sex organs in the male blind mole-rat Spalax ehrenbergi. Life Sci. 76, 521-529.
14. Hart, L. (2006). Reproductive biology of the Cape dune mole-rat, Bathyergus suillus (Schreber 1782). Unpublished MSc thesis, University of Pretoria, Pretoria, South Africa.
15. Hickman, C.G. (1979). A live-trap and trapping technique for fossorial animals. S. Afr. J. Zool. 14, 9-14.
16. Janse van Rensburg, L., Bennett, N.C., van der Merwe, M. & Schoeman, A.S. (2002). Seasonal reproduction in the high-veld mole-rat, Cryptomys hottentotus pretoriae (Rodentia: Bathyergidae). Can. J. Zool. 80, 1-11.
17. Jarvis, J.U.M., O'Riain, M.J., Bennett, N.C. & Sherman, P.W. (1994). Mammalian eusociality - a family affair. Trends Ecol. Evol. 9, 47-51.
18. Karsch, F.J., Bittman, E.L., Foster, D.L., Goodman, R.L., Legan, S.J. & Robinson, J.E. (1984). Neuroendocrine basis for seasonal reproduction. Rec. Prog. Hormone Res. 40, 185-225.
19. Lincoln, G.A. & Short, R.V. (1980). Seasonal breeding: nature's contraceptive. Rec. Prog. Hormone Res. 36, 1-52.
20. Linzey, D.W. (1995). Mammals of Great Smokey Mountains National Park - 1995 update. J. Elisha Mitchell Sci. Soc. 111, 1-81.
21. Lofts, B. (1970). Animal photoperiodism. Studies in biology, No. 25. London: Edward Arnold.
22. Millar, R.P., Flanagan, C.A., Milton, R.C.D. & King, J.A. (1989). Chimeric analogues of vertebrate gonadotropin-releasing hormones comprising substitutions of the variant amino acids in positions 5, 7 and 8. J. Biol. Chem. 264, 21007-21013.
23. Mills, G. & Les, H. (1997). The complete book of southern African mammals. Cape Town: Struik Publishers.
24. Racey, P.A. (1978). Seasonal changes in testosterone levels and androgen-dependent organs in male moles (Talpa europaea). J. Reprod. Fertil. 52, 195-200.
25. Reiter, R.J. & Follett, B.K. (1980). Seasonal reproduction in higher vertebrates. Progress in reproductive biology, Vol. 5. Holland: Karger.
26. Saunders, D.S. (1977). An introduction to biological rhythms. Glasgow: Blackie Press.
27. Skinner, J.D. & Smithers, R.H.N. (1990). The mammals of the southern African subregion. Pretoria, South Africa: Cape & Transvaal Printers.
28. Spinks, A.C., Bennett, N.C., Faulkes, C.G. & Jarvis, J.U.M. (2000). Circulating LH levels and the response to exogenous GnRH in the common mole-rat: implications for reproductive regulation in this social, seasonal breeding species. Horm. Behav. 37, 221-228.
29. Spinks, A.C., Van der Horst, G. & Bennett, N.C. (1997). Influence of breeding season and reproductive status on male reproductive characteristics in the common mole-rat, Cryptomys hottentotus hottentotus. J. Reprod. Fertil. 109, 78-86.
30. Sumbera, R., Burda, H. & Chitaukali, W.N. (2003). Reproductive biology of a solitary subterranean bathyergid rodent, the silvery mole-rat (Heliophobius argenteocinereus). J. Mamm. 84, 278-287.
31. Tsutsui, K., Kawashima, S., Masuda, A. & Oishi, T. (1989). Changes in the testicular binding of luteinizing hormone and plasma testosterone concentrations in the Djungarian hamster (Phodopus sungoris). J. Exp. Zool. 251, 91-100.
32. Van Damme, M.P., Robertson, D.M. & Diczfaluey, E. (1974). An improved in vitro bioassay method for measuring luteinising hormone (LH) activity using mouse Leydig cell preparations. Acta Endocrinol. 77, 658-671.
33. Van der Walt, L., Bennett, N.C. & Schoeman, A.S. (2001). Reproductive suppression and pituitary sensitivity to exogenous GnRH in the highveld mole-rat (Cryptomys hottentotus pretoriae). J. Zool. (Lond.) 254, 177-184.
34. Van Sandwyk, J.d.T. & Bennett, N.C. (2005). Do solitary, seismic signaling Cape mole-rats, Georychus capensis demonstrate spontaneous or induced ovulation? J. Zool. (Lond.) 267, 75-80.