A strategy to improve the efficiency of spermatogenesis during the breeding seasons of <i>Pelodiscus sinensis</i>

Abstract The Chinese soft‐shelled turtle ( Pelodiscus sinensis ) is a reptile that undergoes seasonal reproduction. To produce enough spermatozoa during the mating season, immature can be quickly released from testis. Cell morphological changes related to maturation process are then completed in epididymis. In this way, develop simultaneously epithelium and lumen of seminiferous tubules, making sperm production much more efficient, which strategy boost efficiency spermatogenesis. Morphological also occur vitro. We found when P. were maintained vitro, head could transformed into an expanded shape with nucleolus‐like structures appearing inside. results suggest response reproduction environmental changes. For most species, spermatogenesis at tubule, but our offer new perspective , explain why produced so breeding seasons.