Ren Xiaoxia, Chen Xiaoli, Wang Zhenling, Wang Dong
The Key Laboratory for Farm Animal Genetic Resources and Utilization of Ministry of Agriculture of China, Institute of Animal Science, Chinese Academy of Agriculture Sciences, Beijing 100193, China.
Beijing Agricultural Vocation College, Beijing 102442, China.
J Reprod Dev. 2017 Oct 18;63(5):439-443. doi: 10.1262/jrd.2016-093. Epub 2017 Aug 28.
Transcriptional activity is repressed due to the packaging of sperm chromatins during spermiogenesis. The detection of numerous transcripts in sperm, however, raises the question whether transcriptional events exist in sperm, which has been the central focus of the recent studies. To summarize the transcriptional activity during spermiogenesis and in sperm, we reviewed the documents on transcript differences during spermiogenesis, in sperm with differential motility, before and after capacitation and cryopreservation. This will lay a theoretical foundation for studying the mechanism(s) of gene expression in sperm, and would be invaluable in making better use of animal sires and developing reproductive control technologies.
在精子发生过程中,由于精子染色质的包装,转录活性受到抑制。然而,在精子中检测到大量转录本,这就提出了一个问题,即精子中是否存在转录事件,这一直是近期研究的核心焦点。为了总结精子发生过程中和精子中的转录活性,我们回顾了有关精子发生过程中、不同运动能力的精子中、获能前后以及冷冻保存前后转录本差异的文献。这将为研究精子中基因表达的机制奠定理论基础,并且在更好地利用种畜和开发生殖控制技术方面具有重要价值。