Reproductive cycle of male common Indian rock lizard, Psammophilus blanfordanus: Seasonal testis, epididymis and renal sex segment histology

Singh DK Mohanty N Jena N     

Abstract

Research on reproduction of male Psammophilus blanfordanus, the common Indian rock lizard (Reptilia: Diapsida: Agamidae) is scanty and no report in available regarding relationship between environmental factors and its reproductive status. To understand this relationship, studies on gonadosomatic index (GSI), histology and histometry of testis, epididymis and renal sex segment (RSS) were undertaken. The relative weight of testis (RTW), epididymis (REW), vas deferens (RVW) and kidney (RKW) are highest during breeding season. The RTW and REW are positively correlated with temperature, rainfall and relative humidity (RH). The histology and histometry of testis, epididymis and RSS indicate that the breeding season in this animal is from April to June/ July to early August. During this period the diameter and epithelial cell height of seminiferous tubules, epididymis and RSS tubules are increased along with the increase in the diameter of Leydig cell nucleus. Density of testicular and epididymal sperms, and RSS tubular contents are also increased. This study will enrich the knowledge on environmental control of reproduction, and the animal’s reproductive adaptation during vertebrate evolution.


MS Received Date:   2016-12-22  MS Accepted Date:  2017-02-27  MS Published Date:  2017-03-01
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Singh DK, Mohanty N., Jena N. "Reproductive cycle of male common Indian rock lizard, Psammophilus blanfordanus: Seasonal testis, epididymis and renal sex segment histology" Journal of Zoology Studies 3.6 (2016): 45-55.
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Singh, DK., Mohanty, N., Jena, N. (2016). Reproductive cycle of male common Indian rock lizard, Psammophilus blanfordanus: Seasonal testis, epididymis and renal sex segment histology. Journal of Zoology Studies, 3(6), 45-55.
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Singh DK, Mohanty N, Jena N. Reproductive cycle of male common Indian rock lizard, Psammophilus blanfordanus: Seasonal testis, epididymis and renal sex segment histology. Journal of Zoology Studies. 2016; 3(6): 45-55.
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