Oviductal structure in a viviparous New Zealand gecko, Hoplodactylus maculatus

Journal of Morphology
J E GirlingL J Guillette

Abstract

Oviductal structure is described in New Zealand's common gecko, Hoplodactylus maculatus, over four reproductive stages (early/mid-vitellogenesis, late vitellogenesis, early pregnancy, late pregnancy), using light, scanning electron, and transmission electron microscopy. Five regions of the oviduct are recognized: infundibulum, uterine tube, isthmus, uterus, and vagina. Up to three cell types make up the luminal epithelium of the oviduct: ciliated, nonciliated, and bleb cells. The function of bleb cells (seen in the infundibulum only) is unknown, but observation of these cells using transmission electron microscopy suggests that they are involved in secretory activity. Mucosal glands in the uterine tube possess large numbers of secretory granules of varying electron densities. Additionally, these glands appear to function as sperm storage tubules. Numerous sperm are seen in the glands during late vitellogenesis and early pregnancy. Very few uterine mucosal (shell) glands are seen during vitellogenesis, which is consistent with the observation that only a fine shell membrane covers the egg during early pregnancy. By late pregnancy, extraembryonic membranes lie adjacent to the uterus allowing the formation of the omphalo- and chor...Continue Reading

References

Jan 11, 1992·Biology of Reproduction·B D Palmer, L J Guillette
Apr 1, 1991·Human Reproduction·D MartelA Psychoyos
Nov 1, 1988·The American Journal of Anatomy·B D Palmer, L J Guillette
Mar 1, 1988·Journal of Reproduction and Fertility·H J Leese
Jul 1, 1974·General and Comparative Endocrinology·S J Segal, S S Koide
Feb 1, 1982·Biology of Reproduction·R P Jansen, V K Bajpai
Dec 1, 1984·The American Journal of Anatomy·D E HollisC D Nancarrow
Nov 1, 1981·General and Comparative Endocrinology·R A MeadD R Highfill
Mar 1, 1993·Journal of Reproduction and Fertility·D H Gist, E N Fischer
Aug 1, 1984·Proceedings of the National Academy of Sciences of the United States of America·D G BlackburnC A Beuchat
Jan 1, 1996·Journal of Morphology·M Jane Perkins, Brent D Palmer
Aug 1, 1993·Journal of Morphology·Brent D PalmerLouis J Guillette
Jan 1, 1991·Journal of Morphology·Vicki Abrams Motz, Ian P Callard
Jan 1, 1990·Journal of Morphology·T Ruth Shantha KumariT Shivanandappa
Apr 1, 1985·Journal of Morphology·Louis J Guillette, Richard E Jones

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Citations

Jul 2, 2004·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·David M Sever, William A Hopkins
Mar 27, 2001·Journal of Morphology·D M SeverW C Hamlett
Apr 2, 2011·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Katiane de Oliveira Pinto Coelho NogueiraClóvis Andrade Neves
Mar 16, 2007·Journal of Morphology·Susan M AdamsChristopher R Murphy
Jul 13, 2002·The Journal of Experimental Zoology·Jane E Girling
May 15, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Daniel G Blackburn
Sep 10, 2015·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Muhammad Yasir WaqasQiusheng Chen
Mar 2, 2013·Microscopy Research and Technique·Sthefanie FernandezAlan Peres Ferraz De Melo
Apr 16, 2018·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Henrique B BrazMichael B Thompson
Dec 26, 2001·The Journal of Experimental Zoology·David M Sever, William C Hamlett
Mar 30, 2002·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Michael B ThompsonChristopher R Murphy
Jan 13, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·C R MurphyM B Thompson

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