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Liu Q, Hu J, Lin Y, Wu X, Feng Y, Ye J, Zhang K, Zheng S. Effects of exogenous steroid hormones on growth, body color, and gonadal development in the Opsariichthys bidens. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:449-461. [PMID: 38079050 DOI: 10.1007/s10695-023-01275-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/24/2023] [Indexed: 04/17/2024]
Abstract
To investigate the effects of exogenous steroid hormones on growth, body color, and gonadal development in the Opsariichthys bidens (O. bidens), synthetic methyltestosterone (MT) and 17β-estradiol (E2) were used for 28 days' treatment of 4-month-old O. bidens before the breeding season. Our results suggested that MT had a significant growth-promoting effect (P < 0.05), whereas E2 played an inhibitory role. On the body surface, the females in the MT group showed gray stripes, and the fish in other groups showed no obvious stripes. The males with MT treatment displayed brighter blue-green stripes compared to the CK and E2 groups. The histological analysis showed that the MT significantly promoted testes development in males, blocked oocyte development, and caused massive apoptosis in females, whereas the E2 group promoted ovarian development and inhibited testes development. Based on qRT-PCR analysis, in females, the expression of igf-1, dmrt1, and cyp19a1a genes revealed that E2 treatment resulted in down-regulation of igf-1 expression and up-regulation of cyp19a1a expression. In males, igf-1 and dmrt1 were significantly up-regulated after MT treatment, and E2 treatment led to down-regulation of igf-1. Therefore, this study demonstrates that MT and E2 play an important role in reversing the morphological sex characteristics of females and males.
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Affiliation(s)
- Qingyuan Liu
- College of Life Sciences, Zhejiang Normal University, Room 203, 10 teaching buildings, 688 Yingbin Avenue, Jinhua, 321004, China
| | - Jinchun Hu
- Quzhou Aquatic Technology Promotion Station, Quzhou, China
| | - Yurui Lin
- College of Life Sciences, Zhejiang Normal University, Room 203, 10 teaching buildings, 688 Yingbin Avenue, Jinhua, 321004, China
| | - Xinrui Wu
- College of Life Sciences, Zhejiang Normal University, Room 203, 10 teaching buildings, 688 Yingbin Avenue, Jinhua, 321004, China
| | - Yujun Feng
- College of Life Sciences, Zhejiang Normal University, Room 203, 10 teaching buildings, 688 Yingbin Avenue, Jinhua, 321004, China
| | - Jiazheng Ye
- College of Life Sciences, Zhejiang Normal University, Room 203, 10 teaching buildings, 688 Yingbin Avenue, Jinhua, 321004, China
| | - Kai Zhang
- College of Life Sciences, Zhejiang Normal University, Room 203, 10 teaching buildings, 688 Yingbin Avenue, Jinhua, 321004, China
| | - Shanjian Zheng
- College of Life Sciences, Zhejiang Normal University, Room 203, 10 teaching buildings, 688 Yingbin Avenue, Jinhua, 321004, China.
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Zhao Y, Zhang L, Wang L, Zhang J, Shen W, Ma Y, Ding C, Wu G. Identification and Analysis of Genes Related to Testicular Size in 14-Day-Old Piglets. Animals (Basel) 2024; 14:172. [PMID: 38200903 PMCID: PMC10778417 DOI: 10.3390/ani14010172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
The RNA-Seq technology was used to screen the key genes that affect the early development of the testes of Duroc × Landrace × Yorkshire piglets, to determine the regulatory pathway and provide reference for subsequent reproductive performance research, breeding, and other production practices. This study selected 14-day-old Duroc × Landrace × Yorkshire piglets as the trial animals. Testes from piglets with similar weights and no pathological changes were divided into small testis (ST) and large testis (LT) groups, and the RNA-Seq screening of differentially expressed genes (DEGs) was performed to find candidate genes and regulatory pathways related to early testicular development. The results show that 570 DEGs were found in the ST and LT groups, with 281 upregulated and 289 downregulated. The DEGs were mainly enriched on 47 gene ontology (GO) functional items. The Kyoto encyclopedia of genes and genotypes (KEGG) enrichment analysis found that there were 44 significantly enriched KEGG signal pathways, and the regulation of testicular development mainly focused on the arachidonic acid metabolism, Wnt signaling pathway and GnRH secretion pathways. The PTGES, SFRP1, SPP1, PLA2G4E, KCNJ5, PTGS2, and HCN1 genes were found to be as closely related to the testicular development of these Duroc × Landrace × Yorkshire piglets, and the differential gene expression was consistent with the real-time quantitative reverse transcription PCR (real-time qRT-PCR) validation results. This study was validated by high-throughput sequencing analysis and real-time qRT-PCR, and showed that the PTGES, SFRP1, SPP1, PLA2G4E, KCNJ5, PTGS2, and HCN1 genes may be involved in the regulation of germ cell development, spermatogenesis and semen traits. These should be further studied as candidate genes for early testicular development and reproductive trait regulation in boars.
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Affiliation(s)
- Yunjiao Zhao
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (Y.Z.); (L.W.); (J.Z.); (W.S.); (Y.M.); (C.D.)
| | - Liangzhi Zhang
- Qinghai Provincial Key Laboratory of Animal Ecological Genomics, Northwest Institute of Plateau Biology, Xining 810008, China;
| | - Lei Wang
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (Y.Z.); (L.W.); (J.Z.); (W.S.); (Y.M.); (C.D.)
| | - Jianbo Zhang
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (Y.Z.); (L.W.); (J.Z.); (W.S.); (Y.M.); (C.D.)
| | - Wenjuan Shen
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (Y.Z.); (L.W.); (J.Z.); (W.S.); (Y.M.); (C.D.)
| | - Yuhong Ma
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (Y.Z.); (L.W.); (J.Z.); (W.S.); (Y.M.); (C.D.)
| | - Chengxiang Ding
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (Y.Z.); (L.W.); (J.Z.); (W.S.); (Y.M.); (C.D.)
| | - Guofang Wu
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (Y.Z.); (L.W.); (J.Z.); (W.S.); (Y.M.); (C.D.)
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