A Comparative Overview of Mammalian Fertilization by J. Michael Bedford (auth.), Bonnie S. Dunbar, Michael G.

By J. Michael Bedford (auth.), Bonnie S. Dunbar, Michael G. O’Rand (eds.)

In 1964, the Fertilization and Gamete body structure learn education software (FERGAP) was once proven on the Marine organic Laboratories, Woods gap, Massachusetts. Over the process the subsequent 12 years, lower than the directorship of Dr. Charles B. Metz, FERGAP introduced jointly, informed, and encouraged a new release of scholars in reproductive biology from around the globe. As scholars of C. B. Metz and as FERGAP trainees, we wish to devote this gathered paintings on comparative mammalian fertilization to our instructor and mentor, Dr. Charles B. Metz. Like a few authors contributing to this quantity, we've been struck by way of the numerous effect that C. B. Metz and FERGAP had at the improvement of scholars of reproductive biology. utilising either the classical and molecular thoughts of cellphone biology and immunology to difficulties of gamete biology, Dr. Metz emphasised a comparative and analytical technique that was once mirrored in his personal examine on fertilization in Paramecia, sea urchins, frogs, and mammals. it really is was hoping that this quantity will serve to stimulate scholars to find the myriad of interesting learn difficulties in gamete and reproductive biology. Bonnie S. Dunbar Michael G. O'Rand Houston, Texas Chapel Hill, North Carolina ix Contents half I COMPARATIVE evaluate OF MAMMALIAN GAMETES The Coevolution of Mammalian Gametes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . three J. Michael Bedford I. advent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . three 2. Gamete layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . four 2.1. Monotremes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . five . . . . . . . . . . . . . . 2.2. Marsupials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . five . . . . . . . . . . . . . . . 2.3. Eutherians . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . nine three. Gamete Maturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 . . . . . . . . . . . . . . . three .1. Oocyte Maturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 . . . . . . . . . . . . . 3.2. Sperm Maturation within the Male . . . . . . . . . . . . . . . . . . . . . . . 15 . . . . . . . . . .

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And Hoskins, D. , 1990, The mammalian spermatozoon: Morphology, biochemistry and physiology, in: Marshall's Physiology of Reproduction, 4th Edition, Vol. 2, (G. E. ), Churchill Livingston, London, pp. 379-569. Bedford, J. , and Kim, H. , 1991, Sperm distribution and cumulus oophorus function in the ampulla of the oviduct, J. Exp. Zool. (submitted). Bedford, J. , and Millar, R. , 1978, The character of sperm maturation in the epididymis of the ascrotal hyrax Procavia capensis, and armadillo, Dasypus novemcinctus, Bioi.

66:425-431. Biggers, J. , 1966, Reproduction in male marsupials, Symp. Zool. Soc. Land. 15:251-280. Bishop, M. W. , 1960, Spermatogenesis and the structure of mammalian spermatozoa, in: Marshall's Physiology of Reproduction, 3rd Edition, Vol. I, part 2 (A. S. ), Longmans, Green, London, pp. 1-129. Blandau, R. , 1969, Gamete transport-comparative aspects, in: The Mammalian Oviduct (E. S. E. Hafez and R. J. ), University of Chicago Press, Chicago, pp. 129-162. Bleil, J. , and Wassarman, P. , 1980, Structure and function of the zona pellucida: Identification and characterization of the proteins of the mouse oocyte's zona pellucida, Dev.

However, whereas the marsupial zona is covered in the oviduct by albumin and then by a shell as it passes to the uterus after only 1 day, the eutherian egg is retained in the oviduct according to species for 3-4 days to about 2 weeks, and, with the exception of lagomorphs, the zona pellucida is its sole protection. Thus, enhanced zona development and resilience may finally serve in some way to compensate for conditions that eutherian eggs face in their relatively long sojourn in the changing environment of the fallopian tube.

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