{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T14:20:23Z","timestamp":1784557223239,"version":"3.55.0"},"reference-count":32,"publisher":"Bioscientifica","issue":"1","license":[{"start":{"date-parts":[[2023,1,1]],"date-time":"2023-01-01T00:00:00Z","timestamp":1672531200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["raf.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2023,2,28]]},"abstract":"<jats:p>\n                    The Chinese soft-shelled turtle,\n                    <jats:italic>Pelodiscus sinensis<\/jats:italic>\n                    (Reptilia: Trionychidae), is a typical seasonal breeding species, and its spermatogenesis pattern is complex. In this study, the process of sperm cell development was studied using histology. The process of sperm cell development may be divided into six stages based on a combination of different cell types in the seminiferous epithelium. A close examination revealed two patterns of sperm cell development in the seminiferous tubules during the breeding season. The first is a normal sperm cell development pattern, in which the process of sperm cell development and maturation are completed in the seminiferous epithelium without round spermatozoa in the lumen. The second is rapid sperm cell development, in which the first batches of round spermatozoa fall off the seminiferous epithelium before they mature, thus beginning a second batch of sperm cell development. The round sperm cells are shed into the lumen and further mature in the seminiferous tubules and epididymis. This rapid sperm cell development process of the Chinese soft-shelled turtle is rare in other vertebrate species and may be an adaptation to cope with seasonal breeding. The results of this study provide insight into the theory of seasonal reproduction in reptiles.\n                  <\/jats:p>\n                  <jats:sec>\n                    <jats:title>Lay summary<\/jats:title>\n                    <jats:p>The Chinese soft-shelled turtle is a typical seasonal breeding species, and the process of sperm cell development is complex. In this study, the process of sperm cell development is divided into six stages in Chinese soft-shelled turtles and revealed two patterns of sperm cell development in the testis during the breeding season. The first is a normal sperm cell development pattern, in which the process of sperm cell development and maturation are completed in the testis. The second is a rapid pattern, in which the round sperm cells fall off before they mature and further mature in the epididymis. This rapid sperm cell development process of the Chinese soft-shelled turtle is rare in other vertebrate species and may be an adaptation to cope with seasonal breeding. The results of this study provide insight into the theory of seasonal reproduction in reptiles.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1530\/raf-22-0117","type":"journal-article","created":{"date-parts":[[2023,2,28]],"date-time":"2023-02-28T09:01:16Z","timestamp":1677574876000},"update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-13","source":"Crossref","is-referenced-by-count":2,"title":["Study on the pattern of spermatogenesis during the breeding season of the Chinese soft-shelled turtle, Pelodiscus sinensis (Reptilia: Trionychidae)"],"prefix":"10.1530","volume":"4","author":[{"given":"Yu-Fei","family":"Yang","sequence":"first","affiliation":[{"name":"College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, PR China"},{"name":"Ningbo Jiangshan High School, Ningbo, Zhejiang, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia-Hao","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Run-Lan","family":"Lin","sequence":"additional","affiliation":[{"name":"College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shang-Jun","family":"Yin","sequence":"additional","affiliation":[{"name":"College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guo-Ying","family":"Qian","sequence":"additional","affiliation":[{"name":"College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0014-5552","authenticated-orcid":true,"given":"Wei","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong-Doo","family":"Park","sequence":"additional","affiliation":[{"name":"College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, PR China"},{"name":"Skin Diseases Research Center, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, Zhejiang, PR China"},{"name":"Zhejiang Provincial Key Laboratory of Applied Enzymology, Yangtze Delta Region Institute of Tsinghua University, Jiaxing, Zhejiang, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"416","reference":[{"key":"bib1","series-title":"Journal of Andrology","first-page":"469","article-title":"The cycle of the seminiferous epithelium in humans: a need to revisit?","volume":"29","author":"Amann","year":"2008","unstructured":"Amann RP2008The cycle of the seminiferous epithelium in humans: a need to revisit?Journal of Andrology29469\u2013487. 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