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Deng J, Huang Y, Liang J, Jiang Y, Chen T. Medaka ( Oryzias latipes) Dmrt3a Is Involved in Male Fertility. Animals (Basel) 2024; 14:2406. [PMID: 39199940 PMCID: PMC11350882 DOI: 10.3390/ani14162406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 08/11/2024] [Accepted: 08/14/2024] [Indexed: 09/01/2024] Open
Abstract
Research across various species has demonstrated that the doublesex and mab-3-related transcription factor 3 (dmrt3) plays pivotal roles in testis development. However, the precise molecular mechanisms of dmrt3 remain unclear. In this study, we investigated the role of dmrt3 (dmrt3a) in testis development using the model organism medaka (Oryzias latipes). SqRT-PCR and ISH analyses revealed that dmrt3a is predominantly expressed in the testis, especially in the spermatid and spermatozoon. Using CRISPR/Cas9, we generated two dmrt3a homozygous mutants (-8 bp and -11 bp), which exhibited significantly reduced fertilization rates and embryo production. Additionally, the number of germ cells and sperm motility were markedly decreased in the dmrt3a mutants, manifesting as the symptoms of asthenozoospermia and oligozoospermia. Interestingly, RNA-Seq analysis showed that the deficiency of dmrt3a could lead to a significant downregulation of numerous genes related to gonadal development and severe disruptions in mitochondrial function. These results suggested that dmrt3a is essential for spermatogenesis and spermatozoa energy production. This paper provides new insights and perspectives for further exploring the molecular mechanisms underlying spermatogenesis and addressing male reproductive issues.
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Affiliation(s)
- Ju Deng
- State Key Laboratory of Mariculture Breeding, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen 361021, China; (J.D.); (Y.H.); (J.L.); (Y.J.)
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Yan Huang
- State Key Laboratory of Mariculture Breeding, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen 361021, China; (J.D.); (Y.H.); (J.L.); (Y.J.)
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Jingjie Liang
- State Key Laboratory of Mariculture Breeding, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen 361021, China; (J.D.); (Y.H.); (J.L.); (Y.J.)
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Yuewen Jiang
- State Key Laboratory of Mariculture Breeding, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen 361021, China; (J.D.); (Y.H.); (J.L.); (Y.J.)
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
| | - Tiansheng Chen
- State Key Laboratory of Mariculture Breeding, Engineering Research Center of the Modern Technology for Eel Industry, Ministry of Education, Jimei University, Xiamen 361021, China; (J.D.); (Y.H.); (J.L.); (Y.J.)
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen 361021, China
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Talebi E, Karimian M, Nikzad H. Association of sperm mitochondrial DNA deletions with male infertility in an Iranian population. Mitochondrial DNA A DNA Mapp Seq Anal 2017; 29:615-623. [DOI: 10.1080/24701394.2017.1331347] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Elaheh Talebi
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Karimian
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hossein Nikzad
- Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran
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