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Gao X, Lv Y, Dai Q, Zhu L, Liu S, Hu Z, Lu J, Zhou H, Mei Z. Histological and Transcriptomic Insights into the Ovary Development of Hemibarbus labeo Injected with Spawn-Inducing Hormones. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:672-686. [PMID: 38913221 DOI: 10.1007/s10126-024-10335-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 06/07/2024] [Indexed: 06/25/2024]
Abstract
Naturally, the ovaries of many farmed fish can only develop to stage IV (mainly including stage IV oocytes, known as full-grown postvitellogenic oocytes). Therefore, spawn-inducing hormone injections are used to promote ovary development and oocyte maturation, facilitating reproduction in the aquaculture industry. The study of spawn-inducing hormones and their underlying neuroendocrine mechanisms has been a recent focus in fish reproductive biology. However, the intra-ovarian regulatory mechanisms of ovary development and oocyte maturation after hormone injection require further investigation. In this study, we explored the histological and transcriptomic map of the ovary of Hemibarbus labeo after hormone injection to reveal changes in the ovary. The gonad index significantly increased after hormone injection for 5.5 h, after which no significant change was observed. Histological analysis showed that the nuclei had moved to one side of the oocytes at 5.5 h after hormone injection. Moreover, the volume of the oocytes increased and their yolk membranes thickened. Oocytes then underwent their first meiotic division at 5.5-11 h after hormone injection. Subsequently, the follicular membrane was ruptured, and ovulation was completed at 11-16.5 h after hormone injection. In addition, we identified 3189 differentially expressed genes (DEGs) on comparing the transcriptomes at different time points after hormone injection. These DEGs were significantly enriched in the GO terms of nervous system process, molecular transducer activity, and extracellular region, and the KEGG pathways of TNF signaling and cytokine-cytokine receptor interaction; these may play important roles in ovary development and oocyte maturation. Within these pathways, genes such as apoe, creb3, jun, junb, il11, and il8 may play important roles in steroid hormone synthesis and ovulation. Conclusively, our results show detailed sequential dynamics of oocyte development and provide new insights into the intra-ovarian regulatory mechanisms of ovarian development and oocyte maturation in H. labeo. These findings may be important for research on improving egg quality and reproduction in aquaculture.
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Affiliation(s)
- Xinming Gao
- College of Ecology, Lishui University, Lishui , Zhejiang, 323000, China
| | - Yaoping Lv
- College of Ecology, Lishui University, Lishui , Zhejiang, 323000, China.
| | - Qingmin Dai
- College of Ecology, Lishui University, Lishui , Zhejiang, 323000, China
| | - Ling Zhu
- College of Ecology, Lishui University, Lishui , Zhejiang, 323000, China
| | - Siqi Liu
- College of Ecology, Lishui University, Lishui , Zhejiang, 323000, China
| | - Zehui Hu
- Zhejiang Marine Fisheries Research Institute, Zhoushan , Zhejiang, 316100, China
| | - Junkai Lu
- Cixi Aquatic Technology Promotion Center, Ningbo , Zhejiang, 315300, China
| | - Haidong Zhou
- Suichang Aquatic and Agricultural Machinery Technology Extension Station, Lishui , Zhejiang, 323399, China
| | - Zufei Mei
- Jinman Aquatic Seedling Farm, Lishui , Zhejiang, 323006, China
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Yu Z, Gao Z, Zeng Y, Li M, Xu G, Ren M, Zhu Y, Liu D. A delayed and unsynchronized ovary development as revealed by transcriptome of brain and pituitary of Coilia nasus. Front Mol Biosci 2024; 11:1361386. [PMID: 38665935 PMCID: PMC11043543 DOI: 10.3389/fmolb.2024.1361386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/18/2024] [Indexed: 04/28/2024] Open
Abstract
Coilia nasus is an anadromous fish that has been successfully domesticated in the last decade due to its high economic value. The fish exhibits a delayed ovary development during the reproductive season, despite breeding and selection for five to six offspring. The molecular mechanism of the delayed ovary development is still unknown, so the obstacles have not been removed in the large-scale breeding program. This study aims to investigate the key genes regulating ovarian development by comparing the transcriptomes of ovarian-stage IV and stage II brain/pituitary of Coilia nasus. Ovarian stages were validated by histological sections. A total of 75,097,641 and 66,735,592 high-quality reads were obtained from brain and pituitary transcriptomes, respectively, and alternatively spliced transcripts associated with gonadal development were detected. Compared to ovarian Ⅱ- brain, 515 differentially expressed genes (DEGs) were upregulated and 535 DEGs were downregulated in ovarian Ⅳ- brain, whereas 470 DEGs were upregulated and 483 DEGs were downregulated in ovarian Ⅳ- pituitary compared to ovarian Ⅱ- pituitary. DEGs involved in hormone synthesis and secretion and in the GnRH signaling pathway were screened. Weighted gene co-expression network analysis identified gene co-expression modules that were positively correlated with ovarian phenotypic traits. The hub genes Smad4 and TRPC4 in the modules were co-expressed with DEGs including Kiss1 receptor and JUNB, suggesting that ovarian development is controlled by a hypothalamic-pituitary-gonadal axis. Our results have provided new insights that advance our understanding of the molecular mechanism of C. nasus reproductive functions and will be useful for future breeding.
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Affiliation(s)
- Ziyan Yu
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
- Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, Shanghai Ocean University, Shanghai, China
| | - Zongshuai Gao
- Department of Transfusion Medicine, Shanghai Sixth People’s Hospital Afffiliated to Shanghai Jiao Tong University School of Medicinel, Shanghai, China
| | - Yun Zeng
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
- Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, Shanghai Ocean University, Shanghai, China
| | - Mingyou Li
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
| | - Gangchun Xu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Mingchun Ren
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Yunxia Zhu
- Department of Laboratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Dong Liu
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
- Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, Shanghai Ocean University, Shanghai, China
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Ma F, Yang Y, Wang Y, Yin D, Liu K, Yin G. A proteomics approach reveals digestive and nutritional responses to food intake in anadromous Coilia nasus. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2022; 43:100995. [PMID: 35594610 DOI: 10.1016/j.cbd.2022.100995] [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: 12/17/2021] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
The estuarine tapertail anchovy, Coilia nasus, is an anadromous fish that undertakes over a 600-km spawning migration along the Yangtze River of China. They generally cease feeding during this process, but we recently documented that a small proportion of them appear to feed. Research on proteomic responses is essential for understanding the phenomenon of C. nasus feeding. In this study, we used an iTRAQ-based proteomics approach to study the changes in protein expression in response to food intake in C. nasus following voluntary fasting. Coilia nasus in the feeding group (CSI) were fed shrimp or small fish, whereas those in the control group (CSN) were starved. We identified 3279 proteins in the gastric tissue/stomach, of which 279 were significantly differentially expressed. In all, 133 differentially expressed proteins (DEPs) were upregulated and 146 proteins were downregulated in CSI compared with those in CSN C. nasus. In addition to gastric acid secretion caused by gastric distention, a functional analysis suggested that a series of DEPs were involved mainly in the regulation of protein digestion (e.g., carboxypeptidase A1 and chymotrypsin A-like), immune response (e.g., lysozyme and alpha 2-macroglobulin), and nutrition metabolism (e.g., glyceraldehyde 3-phosphate dehydrogenase, glycogenin, long-chain acyl-CoA synthetase, and creatine kinase). Real-time PCR confirmed that the mRNA levels of the DEPs were similar those obtained using iTRAQ. These results indicate that the nutrients obtained through food were effectively utilized by C. nasus, thereby providing energy for swimming, gonadal maturation, primary metabolism, and an enhanced immune function to better resist pathogen interference. This research contributes to the elucidation of nutritional regulation mechanisms of C. nasus to better protect the wild population.
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Affiliation(s)
- Fengjiao Ma
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China
| | - Yanping Yang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China
| | - Yinping Wang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China
| | - Denghua Yin
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China
| | - Kai Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China.
| | - Guojun Yin
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China.
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Ying C, Fang X, Wang H, Yang Y, Xu P, Liu K, Yin G. Anisakidae parasitism activated immune response and induced liver fibrosis in wild anadromous Coilia nasus. JOURNAL OF FISH BIOLOGY 2022; 100:958-969. [PMID: 35229303 DOI: 10.1111/jfb.15027] [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: 11/06/2021] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
Anisakidae nematode larvae is one of the most common parasites in wild anadromous Coilia nasus. This study aims to explore the mechanism of the C. nasus immune response to the parasitism of Anisakid nematode larvae. Results found that Anisakid nematode larvae parasitism caused liver injury as evidenced by histomorphology results as well as high levels of aminotransferase and aspertate aminotransferase. Furthermore, Anisakid nematode larvae parasitism induced an immune response in the host, which was characterized by the elevated populations of macrophages and neutrophils in the liver and head-kidney in the Anisakidae-infected group compared to the noninfected group. The expression of immunoglobulin IgM and IgD in the liver and head-kidney was also increased in the Anisakidae-infected group. The Anisakidae-infected group showed higher activity of antioxidant enzymes catalase and superoxide dismutase, which indicates severe oxidative stress, and increased production of pro-inflammatory cytokines, TNF-α, IL-6 as well as MCP-1 in the liver compared with the noninfected group. As a result of inflammation, livers of hosts in the Anisakidae-infected group showed fibrosis, and elevated expression of associated proteins including α-smooth muscle actin, fibronectin, collagen type I and type III compared with the noninfected group. We demonstrated that Anisakid nematode larvae parasitism results in injury and fibrosis in the liver, and triggers immune cell infiltration and inflammation in the liver and head-kidney of C. nasus. Altogether, the results provide a foundation for building an interaction between parasite and host, and will contribute to C. nasus population and fishery resource protection.
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Affiliation(s)
- Congping Ying
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Xin Fang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi, China
| | - Honglan Wang
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Yanping Yang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi, China
| | - Pao Xu
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi, China
| | - Kai Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi, China
| | - Guojun Yin
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi, China
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Gao J, Xu G, Xu P. Gills full-length transcriptomic analysis of osmoregulatory adaptive responses to salinity stress in Coilia nasus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112848. [PMID: 34619476 DOI: 10.1016/j.ecoenv.2021.112848] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
Salinity changes will threaten the survival of aquatic animals. However, osmoregulatory mechanism of Coilia nasus has not been explored. Oxford Nanopore Technologies (ONT) sequencing was performed in C. nasus gills during hypotonic and hyperosmotic stress. 23.8 G clean reads and 27,659 full-length non-redundant sequences were generated via ONT sequencing. Alternative splicing, alternative polyadenylation, transcript factors, and long noncoding RNA were identified. During hypotonic stress, 58 up-regulated differentially expressed genes (DEGs) and 36 down-regulated DEGs were identified. During hypertonic stress, 429 up-regulated DEGs and 480 down-regulated DEGs were identified. These DEGs were associated with metabolism, cell cycle, and transport. The analysis of these DEGs indicated that carbohydrate and fatty acid metabolism were activated to provide energy for cell cycle and transport during hypotonic and hypertonic stress. Cell cycle was also promoted during hypotonic and hypertonic stress. To resist hypotonic stress, polyamines metabolism, ion absorption and water transport from extra-cellular to intra-cellular were promoted, while ion secretion was inhibited. During hypotonic stress, glutamine, alanine, proline, and inositol metabolism were activated. Ion absorption and water transport from intra-cellular to extra-cellular were inhibited. Moreover, different transcript isoforms generated from the same gene performed different expression patterns during hypotonic and hypertonic stress. These findings will be beneficial to understand osmoregulatory mechanism of Coilia nasus.
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Affiliation(s)
- Jun Gao
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China
| | - Gangchun Xu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China.
| | - Pao Xu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China.
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6
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Gao J, Xu G, Xu P. Full-length transcriptomic analysis reveals osmoregulatory mechanisms in Coilia nasus eyes reared under hypotonic and hyperosmotic stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149333. [PMID: 34352462 DOI: 10.1016/j.scitotenv.2021.149333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/24/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
In recent years, sea-level rise, caused by global warming, will trigger salinity changes. This will threaten the survival of aquatic animals. Till now, the osmoregulatory mechanism of Coilia nasus eyes has not been yet explored. Oxford Nanopore Technologies (ONT) sequencing was performed in C. nasus eyes during hypotonic and hyperosmotic stress for the first time. 22.5G clean reads and 26,884 full-length non-redundant sequences were generated via ONT sequencing. AS events, APA, TF, and LncRNA were identified. During hypotonic stress, 46 up-regulated DEGs and 28 down-regulated DEGs were identified. During hypertonic stress, 190 up-regulated DEGs and 182 down-regulated DEGs were identified. These DEGs were associated with immune, metabolism, and transport responses. The expression of these DEGs indicated that apoptosis and inflammation were triggered during hypotonic and hyperosmotic stress. To resist hypotonic stress, polyamines metabolism and transport of Na+ and Cl- from inter-cellular to extra-cellular were activated. During hyperosmotic stress, amino acids metabolism and transport of myo-inositol and Na+ from extra-cellular to inter-cellular were activated, while Cl- transport was inhibited. Moreover, different transcript isoforms generated from the same gene performed different expression patterns during hypotonic and hypertonic stress. These findings will be beneficial to understand osmoregulatory mechanism of C. nasus eyes, and can also improve our insights on the adaptation of aquatic animals to environmental changes.
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Affiliation(s)
- Jun Gao
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China
| | - Gangchun Xu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China.
| | - Pao Xu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China.
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Full-length transcriptome of anadromous Coilia nasus using single molecule real-time (SMRT) sequencing. AQUACULTURE AND FISHERIES 2020. [DOI: 10.1016/j.aaf.2020.08.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Xu R, Pan L, Yang Y, Zhou Y. Characterizing transcriptome in female scallop Chlamys farreri provides new insights into the molecular mechanisms of reproductive regulation during ovarian development and spawn. Gene 2020; 758:144967. [PMID: 32707299 DOI: 10.1016/j.gene.2020.144967] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 07/06/2020] [Accepted: 07/17/2020] [Indexed: 10/23/2022]
Abstract
Bivalve mollusks are descendants of an early-Cambrian lineage and have successfully evolved unique strategies for reproduction. Nonetheless, the molecular mechanisms underlying reproductive regulation in mollusks remain to be elucidated. In this study, transcriptomes of ovary at four reproductive stages in female Chlamys farreri were characterized by RNA-Seq. Regarding signaling pathways, ECM-receptor interaction pathway, mTOR signaling pathway, Fanconi anemia pathway, FoxO signaling pathway, Wnt signaling pathway and Hedgehog signaling pathway were enriched during ovarian development processes. In addition, pathways related to energy metabolism such as Nitrogen metabolism and Arachidonic acid metabolism were enriched at spawn stage. Interestingly, Neuroactive ligand-receptor interaction was significantly enriched involved in ovarian development and spawn, and indicated the potential functions of nervous system on reproductive regulation in C. farreri. What's more, this study identified and characterized fourteen genes involved in "sex hormones synthesis and regulation", "ovarian development and spawn" and "maternal immunity" during the four reproductive stages in C. farreri. We determined that CYP17 uniquely affected gamete release by influencing the physiological balance among the steroid hormones and showed that receptors of the 5-HT and GABA neurotransmitters were tightly associated with ovarian maturation. Furthermore, to the best of our knowledge, this is the first study to report the maternal effect gene Zar1 in bivalve mollusks, likewise the maternal immunity genes displayed coordinated and cooperative expression during reproductive periods, which strengthened the environmental adaptation mechanisms of bivalves. Taken together, this study provides the first dynamic transcriptomic analysis of C. farreri at four key reproductive stages, which will assist in revealing the molecular mechanisms underlying bivalves on reproductive regulation in ovarian development and spawn.
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Affiliation(s)
- Ruiyi Xu
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China.
| | - Yingying Yang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Yueyao Zhou
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
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Yin D, Lin D, Ying C, Ma F, Yang Y, Wang Y, Tan J, Liu K. Metabolic mechanisms of Coilia nasus in the natural food intake state during migration. Genomics 2020; 112:3294-3305. [PMID: 32540494 DOI: 10.1016/j.ygeno.2020.05.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 05/27/2020] [Accepted: 05/30/2020] [Indexed: 01/19/2023]
Abstract
As a prominent member of freshwater and coastal fish faunas, Coilia nasus migrates annually from the sea up the Yangtze River in China to spawn. It is traditionally believed that C. nasus generally do not feed during their spawning migration. However, we recently documented the occurrence of food intake phenomenon in C. nasus following voluntary fasting. The purpose of the current study is to explore the metabolic mechanisms on C. nasus in response to food intake during migration. A total of 23,159 differentially expressed mRNA molecules and 204 metabolites were identified in transcriptome and metabolome analyses. Our results provide insights into the activation of energy consumption and reinforcement of energy storage during migration, and also identify key genes involved in food intake regulation. Our findings will be useful for future research on population recruitment and energy utilization in wild C. nasus.
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Affiliation(s)
- Denghua Yin
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi214081, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Danqing Lin
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi214081, China
| | - Congping Ying
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi214081, China
| | - Fengjiao Ma
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi214081, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Yanping Yang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi214081, China
| | - Yinping Wang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi214081, China
| | - Jinhao Tan
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi214081, China
| | - Kai Liu
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, CAFS, WuXi214081, China.
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Wang M, Xu P, Zhu Z. Regulation of signal transduction in Coilia nasus during migration. Genomics 2019; 112:55-64. [PMID: 31404627 DOI: 10.1016/j.ygeno.2019.07.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 07/31/2019] [Accepted: 07/31/2019] [Indexed: 12/11/2022]
Abstract
Coilia nasus (C. nasus) is an important anadromous fish species that resides in the Yangtze River in China. However, wild C. nasus have suffered serious damage as a result of overfishing and environmental pollution. We performed comparative liver and brain transcriptome analyses of C. nasus from the Jingjiang (JJ) and Dangtu (DT) sections of the Yangtze River. The results indicate that, during migration, most signal pathways in C. nasus livers were downregulated, indicating that the liver has a function in energy conservation. The brain assumes more of a regulatory role, and the signal transduction pathways and relevant genes were upregulated. This study provides genetic information for screening the key regulatory genes of gonad development of C. nasus, which can be applied in the artificial breeding of C. nasus, providing high-quality fish fry for proliferation and release and may also contribute to efforts towards the restoration of wild C. nasus.
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Affiliation(s)
- Meiyao Wang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, Jiangsu Province, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, Jiangsu Province, China; Aquatic Animal Genome Center of Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214128, Jiangsu Province, China
| | - Pao Xu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, Jiangsu Province, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, Jiangsu Province, China; Aquatic Animal Genome Center of Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214128, Jiangsu Province, China.
| | - Zhixiang Zhu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, Jiangsu Province, China
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11
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Fang DA, Yang XJ, Feng X, Zhou YF, Xu DP, Zhang MY, Liu K. FoxL2 combined with Cyp19a1a regulate the spawning upstream migration in Coilia nasus. Gene 2019; 710:307-315. [PMID: 31125733 DOI: 10.1016/j.gene.2019.05.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 01/15/2023]
Abstract
FoxL2 is a member of the forkhead/HNF-3-related family of transcription factors which provides tissue specific gene regulation. It is known to regulate ovarian aromatase, which plays a crucial role in ovarian development and mature. To understand the role of FoxL2/ovarian aromatase encoded gene Cyp19a1a during ovarian development and recrudescence, we identified cDNA characteristics of FoxL2 and Cyp19a1a, analyzed its temporal expression both at transcript and protein levels in the anadromous fish, Coilia nasus. Tissue distribution pattern revealed that FoxL2 mRNA expression level was highest in ovary, while Cyp19a1a mRNA was highest in brain. During the upstream migration cycle, in ovary, the FoxL2 mRNA temporal expression peaked at the multiplication stage (stage III in May), the Cyp19a1a mRNA expression peaked at the onset stage (stage I in March). It was found that their mRNA transcripts were maintained at high level during the migration stage (from stage I in March to stage VI in July). Additionally, the strongest immunolabeling positive signals of Cyp19a1a and FoxL2 proteins were mainly found in the cytoplasm of olfactory bulb cell, stratum granulare and neurogliocyte cells and development stage oocytes. Data indicated that FoxL2 and Cyp19a1a were inducible and functional in the C. nasus ovary development and migration process. Therefore, the present results can be regarded as evidence for indispensable roles of FoxL2 and Cyp19a1a in the ovary development and migratory behavior at gene expression patterns and encoded protein distribution level.
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Affiliation(s)
- Di-An Fang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, Wuxi 214081, China; College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China.
| | - Xue-Jun Yang
- College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China
| | - Xiaoting Feng
- College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China
| | - Yan-Feng Zhou
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, Wuxi 214081, China
| | - Dong-Po Xu
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, Wuxi 214081, China; College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China
| | - Min-Ying Zhang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, Wuxi 214081, China
| | - Kai Liu
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, Wuxi 214081, China; College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China.
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12
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Feng XT, Yang XJ, Ruan JJ, Wang YQ, Zhou YF, Xu DP, Fang DA. Molecular cloning and characteristics of DnaJa1and DnaJb1 in Coilia nasus: possible function involved in oogenesis during spawning migration. BMC DEVELOPMENTAL BIOLOGY 2019; 19:9. [PMID: 31023217 PMCID: PMC6485077 DOI: 10.1186/s12861-019-0187-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 03/21/2019] [Indexed: 01/06/2023]
Abstract
BACKGROUND Coilia nasus oogenesis/spawning migration is a well-defined synchronous arrangement process. DnaJs are indispensable molecular chaperones for oogenesis process. However, how DnaJs involved the anadromous spawning migration mechanism is outstanding and plausible. RESULTS In this regard, two DnaJs (Cn-DnaJa1 and Cn-DnaJb1) are cloned from the Coilia nasus's ovary. Their structure both contains J domain, G/F domain and ZF domain. Their mRNA transcripts were found extensively expressed in all the sampled tissues and significantly highly in gonads, which probably mean that DnaJs involved in C. nasus's gonad development basal metabolic processes. In the process of spawning migration, Cn-DnaJa1 and Cn-DnaJb1 mRNA transcripts were also expressed with significant differences during oogenesis with highest levels in the development phase, and maintaining high levels during the multiplication, mature and spawning phase. Further study showed that the DnaJa1and DnaJb1protein have high distribution in the onset phase and mainly distributed in the oocyte cytoplasm especially during the migration development phase's. CONCLUSIONS This experiment study demonstrated that DnaJs participate in reproductive regulation during the spawning migration process in C. nasus and possibly play a vital role in the ovary development process. These findings also provided a base knowledge for further molecular mechanism study of spawning migration.
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Affiliation(s)
- Xiao-ting Feng
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture and Rural Affaris. Freshwater Fisheries Research Center, CAFS, WuXi, 214081 China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Xue-jun Yang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture and Rural Affaris. Freshwater Fisheries Research Center, CAFS, WuXi, 214081 China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Jian-jian Ruan
- Wuxi Fisheries College, Nanjing Agricultural University, Xuejiali 69, Wuxi, 214128 China
| | - Ya-qi Wang
- Wuxi Fisheries College, Nanjing Agricultural University, Xuejiali 69, Wuxi, 214128 China
| | - Yan-feng Zhou
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture and Rural Affaris. Freshwater Fisheries Research Center, CAFS, WuXi, 214081 China
| | - Dong-po Xu
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture and Rural Affaris. Freshwater Fisheries Research Center, CAFS, WuXi, 214081 China
| | - Di-an Fang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture and Rural Affaris. Freshwater Fisheries Research Center, CAFS, WuXi, 214081 China
- Wuxi Fisheries College, Nanjing Agricultural University, Xuejiali 69, Wuxi, 214128 China
- National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
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13
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Liu K, Yin D, Shu Y, Dai P, Yang Y, Wu H. Transcriptome and metabolome analyses of Coilia nasus in response to Anisakidae parasite infection. FISH & SHELLFISH IMMUNOLOGY 2019; 87:235-242. [PMID: 30611778 DOI: 10.1016/j.fsi.2018.12.077] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/18/2018] [Accepted: 12/31/2018] [Indexed: 06/09/2023]
Abstract
Parasites from the family Anisakidae are capable of infecting a range of marine fish species worldwide. Coilia nasus, which usually feeds and overwinters in coastal waters and spawns in freshwater, is highly susceptible to infection by Anisakidae. In this study, we used scanning electron microscopes to show that C. nasus infected by Anisakidae exhibited damage and fibrosis of the liver tissue. To better understand host immune reaction and metabolic changes to Anisakidae infection, we used a combination of transcriptomic and metabolomic method to characterize the key genes and metabolites, and the signaling pathway regulation of C. nasus infected by Anisakidae. We generated 62,604 unigenes from liver tissue and identified 391 compounds from serum. Of these, Anisakidae infection resulted in significant up-regulation of 545 genes and 28 metabolites, and significant down-regulation of 416 genes and 37 metabolites. Seventy-four of the 961 differentially expressed genes were linked to immune response, and 1, 2-Diacylglycerol, an important immune-related metabolite, was significantly up-regulated after infection. Our results show activation of antigen processing and presentation, initiation of the T cell receptor signaling pathway, disruption of the TCA cycle, and changes to the amino acid and Glycerolipid metabolisms, which indicate perturbations to the host immune system and metabolism following infection. This is the first study describing the immune responses and metabolic changes in C. nasus to Anisakidae infection, and thus improves our understanding of the interaction mechanisms between C. nasus and Anisakidae. Our findings will be useful for future research on the population ecology of C. nasus.
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Affiliation(s)
- Kai Liu
- Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, 241000, China; Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, WuXi, 214081, China
| | - Denghua Yin
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, WuXi, 214081, China
| | - Yilin Shu
- Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, 241000, China
| | - Pei Dai
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, WuXi, 214081, China
| | - Yanping Yang
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affaris, Freshwater Fisheries Research Center, CAFS, WuXi, 214081, China
| | - Hailong Wu
- Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu, Anhui, 241000, China.
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14
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Development of molecular resources for the spinyhead croaker ( Collichthys lucidus ) using illumina sequencing. Meta Gene 2017. [DOI: 10.1016/j.mgene.2017.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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15
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Lee SC, Hsiao CD, Wang YS, Lou SW. Transcriptome response of previtellogenic ovary in Anguilla japonica after artificial hormone injection. Mar Genomics 2017; 35:31-34. [PMID: 28478932 DOI: 10.1016/j.margen.2017.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 04/25/2017] [Accepted: 04/27/2017] [Indexed: 11/19/2022]
Abstract
In this study we investigate the intra-ovarian pathways underlying early follicle development in Japanese eels, Anguilla japonica. We conducted high-throughput transcriptome analyses in the initial development of the ovary via the next-generation sequencing (NGS). Japanese eels were treated with three weekly salmon pituitary homogenate (SPH) injections. Using RNA-seq, we obtained 29,117,237 and 41,867,557 reads from the control and the SPH-injected groups, respectively. Combining these RNA-seq datasets, we acquired a total of 101,711 unigenes (N50=1,517bp) after performing de novo assembly. After differentially expressed gene (DEG) analysis, 4,211 and 7,059 annotated genes showed upregulation and downregulation respectively in SPH-injected ovarian tissues. Furthermore, functions of annotated genes were classified by GO and KEGG analyses. The PTEN/PI3K-Akt pathway, Tsc/mTOR signaling, oocyte meiosis and reproduction functions were found in data of differentially expressed genes.
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Affiliation(s)
- Shang-Chien Lee
- Institute of Fisheries Science, College of life science, National Taiwan University, Taipei 10617, Taiwan
| | - Chung-Der Hsiao
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li district, Taoyuan, city 32023, Taiwan
| | - Yung-Song Wang
- Institute of Fisheries Science, College of life science, National Taiwan University, Taipei 10617, Taiwan.
| | - Show-Wan Lou
- Institute of Fisheries Science, College of life science, National Taiwan University, Taipei 10617, Taiwan.
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16
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Zhu G, Wang L, Tang W, Wang X, Wang C. Identification of olfactory receptor genes in the Japanese grenadier anchovy Coilia nasus. Genes Genomics 2017; 39:521-532. [PMID: 28458780 PMCID: PMC5387026 DOI: 10.1007/s13258-017-0517-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/25/2017] [Indexed: 12/18/2022]
Abstract
Olfaction is essential for fish to detect odorant elements in the environment and plays a critical role in navigating, locating food and detecting predators. Olfactory function is produced by the olfactory transduction pathway and is activated by olfactory receptors (ORs) through the binding of odorant elements. Recently, four types of olfactory receptors have been identified in vertebrate olfactory epithelium, including main odorant receptors (MORs), vomeronasal type receptors (VRs), trace-amine associated receptors (TAARs) and formyl peptide receptors (FPRs). It has been hypothesized that migratory fish, which have the ability to perform spawning migration, use olfactory cues to return to natal rivers. Therefore, obtaining OR genes from migratory fish will provide a resource for the study of molecular mechanisms that underlie fish spawning migration behaviors. Previous studies of OR genes have mainly focused on genomic data, however little information has been gained at the transcript level. In this study, we identified the OR genes of an economically important commercial fish Coilia nasus through searching for olfactory epithelium transcriptomes. A total of 142 candidate MOR, 52 V2R/OlfC, 32 TAAR and two FPR putative genes were identified. In addition, through genomic analysis we identified several MOR genes containing introns, which is unusual for vertebrate MOR genes. The transcriptome-scale mining strategy proved to be fruitful in identifying large sets of OR genes from species whose genome information is unavailable. Our findings lay the foundation for further research into the possible molecular mechanisms underlying the spawning migration behavior in C. nasus.
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Affiliation(s)
- Guoli Zhu
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Liangjiang Wang
- Department of Genetics and Biochemistry, Clemson University, Clemson, SC USA
| | - Wenqiao Tang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Xiaomei Wang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Cong Wang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
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17
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Duan JR, Fang DA, Zhang MY, Liu K, Zhou YF, Xu DP, Xu P, Li DP. Changes of gonadotropin-releasing hormone receptor 2 during the anadromous spawning migration in Coilia nasus. BMC DEVELOPMENTAL BIOLOGY 2016; 16:42. [PMID: 27881074 PMCID: PMC5122156 DOI: 10.1186/s12861-016-0142-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 11/06/2016] [Indexed: 11/17/2022]
Abstract
Background An increase in the activity of the pituitary-gonad axis (PG-axis) and gonad development are essential for the onset of spawning migration in teleosts. In the fish Coilia nasus, gonad development and spawning migration up the Yangtze River occurs by the end of each summer. We hypothesized that gonadotropin releasing hormones receptor 2 (GnRH-R2), which together produce a signal that interacts with the PG-axis, may help to regulate spawning migration processes. Results In this regard, we (1) characterized the gonadosomatic index (GSI) in the anadromous fish C. nasus; (2) analyzed the GnRH-R2 mRNA expression levels in ovary and brain, and concentrations in the serum; and (3) identified the GnRH-R2 protein distribution in the brain and ovaries. We found strong relationships between all of these indices. Conclusions The results indicate that GnRH-R2 could act together to promote spawning during the anadromous migration. There is some evidence that the GnRH-R2 gene expression levels and protein distributions change in association with the migratory behavior.
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Affiliation(s)
- Jin-Rong Duan
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, 9 Shanshui Road, Wuxi, 214128, China
| | - Di-An Fang
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, 9 Shanshui Road, Wuxi, 214128, China
| | - Min-Ying Zhang
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, 9 Shanshui Road, Wuxi, 214128, China
| | - Kai Liu
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, 9 Shanshui Road, Wuxi, 214128, China
| | - Yan-Feng Zhou
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, 9 Shanshui Road, Wuxi, 214128, China
| | - Dong-Po Xu
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, 9 Shanshui Road, Wuxi, 214128, China
| | - Pao Xu
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, 9 Shanshui Road, Wuxi, 214128, China.
| | - Da-Peng Li
- Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China.
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18
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Fang DA, Duan JR, Zhou YF, Zhang MY, Xu DP, Liu K, Xu P. Molecular Characteristic, Protein Distribution and Potential Regulation of HSP90AA1 in the Anadromous Fish Coilia nasus. Genes (Basel) 2016; 7:genes7020008. [PMID: 26828521 PMCID: PMC4773752 DOI: 10.3390/genes7020008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 01/14/2016] [Accepted: 01/14/2016] [Indexed: 12/20/2022] Open
Abstract
Heat shock proteins play essential roles in basic cellular events. Spawning migration is a complex process, with significant structural and biochemical changes taking place in the adult gonad. To date, the molecular mechanisms underlying migration reproductive biology remain undetermined. In this regard, a full length HSP90AA1 comprising 2608 nucleotides from the anadromous fish Coilia nasus was characterized, encoding 742 amino acid (aa) residues with potential phosphorylation sites. HSP90AA1 mRNA transcripts were detected in all organs, especially in the gonad. Furthermore, the greatest transcript levels were found during the developmental phase, while the lowest levels were found during the resting phase. In addition, the strongest immunolabeling positive signal was found in the primary spermatocyte and oocyte, with lower positive staining in secondary germ cells, and a weak or absent level in the mature sperm and oocyte. Interestingly, HSP90AA1 was mainly located in the cytoplasm of germ cells. These results are important for understanding the molecular mechanism of anadromous migration reproductive biology. In combination with data from other fish species, the result of this present study may facilitate further investigations on the spawning migration mechanism.
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Affiliation(s)
- Di-An Fang
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Shanshui Road 9, Wuxi 214128, China.
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture, Xuejiali 69, Wuxi 214128, China.
| | - Jin-Rong Duan
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Shanshui Road 9, Wuxi 214128, China.
| | - Yan-Feng Zhou
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Shanshui Road 9, Wuxi 214128, China.
| | - Min-Ying Zhang
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Shanshui Road 9, Wuxi 214128, China.
| | - Dong-Po Xu
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Shanshui Road 9, Wuxi 214128, China.
- Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture, Xuejiali 69, Wuxi 214128, China.
| | - Kai Liu
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Shanshui Road 9, Wuxi 214128, China.
| | - Pao Xu
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Shanshui Road 9, Wuxi 214128, China.
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