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Seasonal ovarian histology of the ovoviviparous iguanid lizard Sceloporus jarrovi cope

1970; Wiley; Volume: 132; Issue: 3 Linguagem: Inglês

10.1002/jmor.1051320303

1097-4687

Stephen R. Goldberg,

Physiological and biochemical adaptations

Abstract Histological analyses of monthly collections of Sceloporus jarrovi ovaries are presented. The ovaries undergo a cycle in which yolk deposition occurs in September‐October and is followed by ovulation in late November. One corpus luteum forms from each ruptured follicle and undergoes progressive cytoplasmic depletion until mid‐June parturition, after which time rapid degeneration commences. Follicular atresia is common during the spring and absent during the summer and early fall. Granulosa cells play an active role in follicular atresia luteal cell formation, and may also be involved in yolk deposition.