Fig. 2From: Analyzing the gonadal transcriptome of the frog Hoplobatrachus rugulosus to identify genes involved in sex developmentHistological observations of gonads from both sexes of Hoplobatrachus rugulosus at two ages. a Ovary from a 3-month-old female. b Ovary from a 15-month-old female. c Testis from a 3-month-old male. (d) Testis from a 15-month-old maleBack to article page