Mating plugs and male sperm storage in Bothrops cotiara (Serpentes, Viperidae)

Author(s)

Barros, Veronica A. ; Rojas, Claudio A. ; Almeida-Santos, Selma M.

• Document type: Journal article
• Source: HERPETOLOGICAL JOURNAL; v. 27, n. 1, p. 115-119, JAN 2017.
• Web of Science Citations: 0

Abstract

We describe two new aspects of male reproduction in the pit viper Bothrops cotiara: the formation of mating plugs and epididymal sperm storage. Based on histological analyses of specimens (four males and three females), we propose that long-term sperm storage occurs in the ductus deferens, whereas macroscopic hypertrophy indicates that the epididymis may be a short-term sperm storage site. Secretions of the sexual segment of the kidneys probably form the mating plug that males deposit in the female vagina during copulation. A mating plug without sperm was observed in the spring. Future studies should address the functions and longevity of mating plugs and the role of the epididymis in Bothrops reproduction. (AU)

• FAPESP's process: 12/15037-4 - Evolution of reproductive strategies in the genus Bothrops (Serpentes, Viperidae)
• Grantee: Verônica Alberto Barros
• Support Opportunities: Scholarships in Brazil - Doctorate