Expression of P450arom and Estrogen Receptor Alpha in the Oviduct of Chinese Brown Frog (Rana dybowskii) during Prehibernation

Figure 1

Changes in oviductal histology between the breeding period and prehibernation. Anatomic localization and morphology of oviduct of Rana dybowskii during the breeding period (a) and prehibernation (c). Histological structure of Rana dybowskii oviducts by hematoxylin and eosin staining in the breeding period (b) and prehibernation (d). Tubule lumen, epithelial cells, and lobules consist of stroma cells and were observed in oviduct tissues expanded. Changes in weight (e) and relative circumference (f) of oviduct in Rana dybowskii from the breeding period to prehibernation. B: the breeding period; P: prehibernation; EC: epithelial cell; ST: stroma tissue; TL: tubule lumen. Scale bars represent 1 cm ((a), (c)) and 0.2 mm ((b), (d)), respectively.

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