Skip to main content
Fig. 5 | Zoological Letters

Fig. 5

From: Progesterone initiates tendril formation in the oviducal gland during egg encapsulation in cloudy catshark (Scyliorhinus torazame)

Fig. 5

Distribution graph showing diameter of tendrils and plasma P4 levels of steroid- or vehicle-treated individuals. Filled circles, P4 implantation for 2 days using 8 cm tubing (N = 3); open circles, P4 implantation for 2 days using 2 cm tubing (N = 3); cross marks, E2 implantation for 2 days (N = 4); filled triangles, T implantation for 2 days (N = 3); filled squares, vehicle implantation for 2 days (N = 3). Because individuals implanted with E2, T, and vehicle (with the exception of one E2-implanted individual) had plasma P4 levels less than 3 ng/mL and did not form tendrils, these marks overlap and cannot be individually distinguished in this figure

Back to article page

Zoological Letters

ISSN: 2056-306X

Contact us