Morphogenesis stages of the embryonic development of the Levantine viper (Macrovipera lebetina obtusa Dwigubsky, 1832)
Keywords:Levatine viper, egg, embryo, allantois, yolk sac, embryonic development, developmental stag
The article provides information on the embryonic development of the Levantine viper (Macrovipera lebetina obtusa Dwigubsky, 1832), its stages of morphogenesis, and the morphological variability of embryogenesis at the time of ovulation. It was determined that on the day of egg laying, the blood vessels of the provisional organs (allantois and yolk sac) were formed and covered 50-60% of the body surface of the embryo, and the embryos are already in the initial stages of embryonic development morphogenesis (spiral twist of the body and the beginning of the formation of the tongue). It was determined that the Levantine viper has already finished the 33-35 day development period (embryonic period) in the oviducts by the time of ovulation. After the egg was laid outside, the morphogenesis stages of embryonic development during the natural incubation period were determined according to the morphology of the embryos and the level of development of provisional organs, and 7 stages were described. As a result of the morphological study, 4 periods were distinguished in the embryonic development of the Levantine viper: embryo, pre-fetus and fetus (morphogenesis), and hatching periods. The article describes the morphology and development process of embryos in the stages of morphogenesis and embryonic development.
Anthony R. Rafferty, Richard D., Reina. (2012). Arrested Embryonic Development: a review of strategies to delay hatching in egg-laying reptiles. Australian Centre for Biodiversity, School of Biological Sciences, Monash University and Melbourne, Proceedings of the Royal Society B: Biological Sciences, 279. 2299–2300.
Danielyan F.L., Simonyan A.A. (1976). Jumping lizard. Collective monograph. (embryonic development). Chief Editor. Doctor of Biology. Sciences A.V. Yablokov. Moscow. Publishing house "Science". 227-245 (in Russian).
Dufaure J. P., Hubert J. (1961). Table de devoloppement du le׳zarl vivipara Lacerta (Zootoca) vivipare jacquin. Arch. Anat. Microsc. et Morphol. Experimentale, 50: 3.
Dufaure I.P., Hubert I. (1966). Recherches descriptives et experimentale sur les modalites, tacteurs du devoloppement de I appareil gemital chez le lezard vivipare (Lacerta vivipare Jacquin). Archives d'anatomie microscopique et de morphologie expérimentale, 55: 3.
Iskenderov T.M. (1978). Morphological changeability in early embryogenesis of some species of reptiles and its adaptive significance. Dissertation for Doctor of Philosophy in Biology, Moscow State University. 21 (in Russian).
Khannoon Eraqi R., Evans Susan E. (2014). The embryonic development of the Egyptian cobra Naja h. haje (Squamata: Serpentes: Elapidae). Acta Zoologica (Stockholm). Volume 95. issue 4. 472–483.
Kochva E. (1963). Development of the venom qland and triqeninelmuscles in Vipera palaestinae, Acta Anat. Volume 52, 49–89.
Korneva L.G. (1969). Embryonic development of the water snake Natrix tessellata, Zool. Zhour. Volume 48. No. 1. 110–120. (in Russian).
Korneva L.G. (1976). Stages of embryonic development of some snakes at the time of
Oviposition. Archives of Anatomy, Histology and Embryology, 71,12: 75–88. (in Russian).
Luppa H. (1961). Histologie,Histogeneze und Topochemie der druzendes zauropsidenmagens I. Reptilie. Acta histochem. 12
Marcela Buchtova, Virginia Diewert, Jou Richman (2007). Embryonic development of Python sebae—I: Staging criteria and macroscopic skeletal morphogenesis of the head and limbs, Zoology, 110: 212–230. https://doi.org/10.1016/j.zool.2007.01.005
Maria Teresa Sandoval, Blanca Beatriz Alvarez. (2020). Intrauterine and post‐ovipositional embryonic development of Amerotyphlops brongersmianus (Vanzolini, 1976) (Serpentes: Typhlopidae) from northeastern Argentina. Journal of Morfology. (17 april 2020). https://doi.org/10.1002/jmor.21119
Pasteels J. (1957). Une table analytique du developpement des Reptiles. 1.Stades de gastrulation chez les Cheloniens et les Lacertiliens. Annales de la Société royale zoologique de Belgique, 87.
Zehr David R. (1962). Stages in the Normal Development of the Common Garter Snake, Thamnophis sirtalis sirtalis. Copeia, 1962 (2): 322–329.
How to Cite
This work is licensed under a Creative Commons Attribution 4.0 International License.