The Study of the Oogenic Cycle in Some of Lizard Species of Iran
Subject Areas : Journal of Animal Biology
ویدا حجتی
1
(دانشگاه آزاد اسلامی، واحد دامغان، گروه زیست شناسی، دامغان، ایران)
کاظم پریور
2
(دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، گروه زیستشناسی، تهران، ایران)
اسکندر رستگارپویانی
3
(دانشگاه حکیم سبزواری، دانشکده علوم پایه، گروه زیست شناسی، سبزوار، ایران)
Keywords: Oogenesis, Lizard, Lacertidae, Gekkonidae, Agamidae, Scincidae,
Abstract :
Despite a wide variety and distribution range of lizards in Iran, as yetno comprehensive work has been done on reproductive biology, especially oogenesis, of these animals in the area. Present research, study and review the oogenic cycle of some of lizards species belong to different families in Iran, including: Cyrtopodion caspiumbeloning to the family Gekkonidae; Trapelus agilis,Laudakia caucasia, Laudakia nuptaand Phrynocephalus scutellatusfrom the family Agamidae; some species of Eremias, Mesalina watsonana and Iranolacerta brandtiiof the family Lacertidae and the scincid lizrard, Trachylepis aurata. The diameters of ovaries, follicles, follicular layer, oviductal eggs, and time of emerge and number of mature follicles and oviductal eggs, and gonadal index were compared among the above representatives of these families. The results showed that all species except Trachylepis aurata, which is a viviparous taxon, are oviparous and females emerge in April. All reproductive activities including oogenesis, vitellogenesis and oviposition are done in spring and summer. By late October, as the weather is getting cold, usually they disappear and start the hibernation period. The oogenic cycle of the lizards of Iran like other lizards of temperate zones follow the associated model and duration of the reproductive period is seriously affected by climate of their habitats.