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Yu H, Du X, Chen X, Liu L, Wang X. Transforming growth factor-β (TGF-β): A master signal pathway in teleost sex determination. Gen Comp Endocrinol 2024; 355:114561. [PMID: 38821217 DOI: 10.1016/j.ygcen.2024.114561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/27/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
Sex determination and differentiation in fish has always been a hot topic in genetic breeding of aquatic animals. With the advances in next-generation sequencing (NGS) in recent years, sex chromosomes and sex determining genes can be efficiently identified in teleosts. To date, master sex determination genes have been elucidated in 114 species, of which 72 species have sex determination genes belonging to TGF-β superfamily. TGF-β is the only signaling pathway that the largest proportion of components, which including ligands (amhy, gsdfy, gdf6), receptors (amhr, bmpr), and regulator (id2bby), have opportunity recognized as a sex determination gene. In this review, we focus on the recent studies about teleost sex-determination genes within TGF-β superfamily and propose several hypotheses on how these genes regulate sex determination process. Differing from other reviews, our review specifically devotes significant attention to all members of the TGF-β signal pathway, not solely the sex determination genes within the TGF-β superfamily. However, the functions of the paralogous genes of TGF superfamily are still needed ongoing research. Further studies are required to more accurately interpret the molecular mechanism of TGF-β superfamily sex determination genes.
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Affiliation(s)
- Haiyang Yu
- School of Life Science and Engineering, Jining University, Qufu, Shandong, China
| | - Xinxin Du
- School of Life Science and Engineering, Jining University, Qufu, Shandong, China
| | - Xue Chen
- School of Resource & Environment and Safety Engineering, Jining University, Qufu, Shandong, China
| | - Longxue Liu
- School of Life Science and Engineering, Jining University, Qufu, Shandong, China
| | - Xubo Wang
- Key Laboratory of Aquacultural Biotechnology (Ningbo University), Ministry of Education, Ningbo, Zhejiang, China.
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Flores AM, Christensen KA, Siah A, Koop BF. Insights from Hi-C data regarding the Pacific salmon louse (Lepeophtheirus salmonis) sex chromosomes. G3 (BETHESDA, MD.) 2024; 14:jkae087. [PMID: 38683737 PMCID: PMC11228835 DOI: 10.1093/g3journal/jkae087] [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: 02/09/2024] [Revised: 02/09/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
Salmon lice, Lepeophtheirus salmonis (family Caligidae), are ectoparasites that have negatively impacted the salmon aquaculture industry and vulnerable wild salmon populations. Researchers have studied salmon lice to better understand their biology to develop effective control strategies. In this study, we updated the chromosome-level reference genome assembly of the Pacific subspecies of L. salmonis using Hi-C data. The previous version placed contigs/scaffolds using an Atlantic salmon louse genetic map. By utilizing Hi-C data from Pacific salmon lice, we were able to properly assign locations to contigs/scaffolds previously unplaced or misplaced. This resulted in a more accurate genome assembly and a more comprehensive characterization of the sex chromosome unique to females (W). We found evidence that the same ZW-ZZ mechanism is common in both Atlantic and Pacific subspecies of salmon lice using PCR assays. The W chromosome was approximately 800 kb in size, which is ∼30 times smaller than the Z chromosome (24 Mb). The W chromosome contained 61 annotated genes, including 32 protein-coding genes, 27 long noncoding RNA (lncRNA) genes, and 2 pseudogenes. Among these 61 genes, 39 genes shared homology to genes found on other chromosomes, while 20 were unique to the W chromosome. Two genes of interest on the W chromosome, prohibitin-2 and kinase suppressor of ras-2, were previously identified as potential sex-linked markers in the salmon louse. However, we prioritized the 20 unique genes on the W chromosome as sex-determining candidates. This information furthers our understanding of the biology of this ectoparasite and may help in the development of more effective management strategies.
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Affiliation(s)
- Anne-Marie Flores
- Department of Biology, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Kris A Christensen
- Department of Biology, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Ahmed Siah
- British Columbia Centre for Aquatic Health Sciences, Campbell River, BC V9W 2C2, Canada
| | - Ben F Koop
- Department of Biology, University of Victoria, Victoria, BC V8W 2Y2, Canada
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Kuhl H, Euclide PT, Klopp C, Cabau C, Zahm M, Lopez-Roques C, Iampietro C, Kuchly C, Donnadieu C, Feron R, Parrinello H, Poncet C, Jaffrelo L, Confolent C, Wen M, Herpin A, Jouanno E, Bestin A, Haffray P, Morvezen R, de Almeida TR, Lecocq T, Schaerlinger B, Chardard D, Żarski D, Larson WA, Postlethwait JH, Timirkhanov S, Kloas W, Wuertz S, Stöck M, Guiguen Y. Multi-genome comparisons reveal gain-and-loss evolution of anti-Mullerian hormone receptor type 2 as a candidate master sex-determining gene in Percidae. BMC Biol 2024; 22:141. [PMID: 38926709 PMCID: PMC11209984 DOI: 10.1186/s12915-024-01935-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND The Percidae family comprises many fish species of major importance for aquaculture and fisheries. Based on three new chromosome-scale assemblies in Perca fluviatilis, Perca schrenkii, and Sander vitreus along with additional percid fish reference genomes, we provide an evolutionary and comparative genomic analysis of their sex-determination systems. RESULTS We explored the fate of a duplicated anti-Mullerian hormone receptor type-2 gene (amhr2bY), previously suggested to be the master sex-determining (MSD) gene in P. flavescens. Phylogenetically related and structurally similar amhr2 duplicates (amhr2b) were found in P. schrenkii and Sander lucioperca, potentially dating this duplication event to their last common ancestor around 19-27 Mya. In P. fluviatilis and S. vitreus, this amhr2b duplicate has been likely lost while it was subject to amplification in S. lucioperca. Analyses of the amhr2b locus in P. schrenkii suggest that this duplication could be also male-specific as it is in P. flavescens. In P. fluviatilis, a relatively small (100 kb) non-recombinant sex-determining region (SDR) was characterized on chromosome 18 using population-genomics approaches. This SDR is characterized by many male-specific single-nucleotide variations (SNVs) and no large duplication/insertion event, suggesting that P. fluviatilis has a male heterogametic sex-determination system (XX/XY), generated by allelic diversification. This SDR contains six annotated genes, including three (c18h1orf198, hsdl1, tbc1d32) with higher expression in the testis than in the ovary. CONCLUSIONS Together, our results provide a new example of the highly dynamic sex chromosome turnover in teleosts and provide new genomic resources for Percidae, including sex-genotyping tools for all three known Perca species.
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Affiliation(s)
- Heiner Kuhl
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries - IGB (Forschungsverbund Berlin), Müggelseedamm 301/310, D-12587, Berlin, Germany.
| | - Peter T Euclide
- Department of Forestry and Natural Resources | Illinois-Indiana Sea Grant, Purdue University, West Lafayette, USA
| | - Christophe Klopp
- Sigenae, Plateforme Bioinformatique, Genotoul, BioinfoMics, UR875 Biométrie et Intelligence Artificielle, INRAE, Castanet-Tolosan, France
| | - Cédric Cabau
- Sigenae, GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet-Tolosan, France
| | - Margot Zahm
- Sigenae, Plateforme Bioinformatique, Genotoul, BioinfoMics, UR875 Biométrie et Intelligence Artificielle, INRAE, Castanet-Tolosan, France
| | | | | | - Claire Kuchly
- INRAE, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | | | - Romain Feron
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Hugues Parrinello
- Montpellier GenomiX (MGX), c/o Institut de Génomique Fonctionnelle, 141 rue de la Cardonille, 34094, Montpellier Cedex 05, France
| | - Charles Poncet
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Lydia Jaffrelo
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Carole Confolent
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Ming Wen
- INRAE, LPGP, 35000, Rennes, France
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | | | | | - Anastasia Bestin
- SYSAAF, Station INRAE-LPGP, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Pierrick Haffray
- SYSAAF, Station INRAE-LPGP, Campus de Beaulieu, 35042, Rennes Cedex, France
| | - Romain Morvezen
- SYSAAF, Station INRAE-LPGP, Campus de Beaulieu, 35042, Rennes Cedex, France
| | | | | | | | | | - Daniel Żarski
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, ul. Tuwima 10, 10-748, Olsztyn, Poland
| | - Wesley A Larson
- National Oceanographic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center, 17109 Point Lena Loop Road, Auke Bay LaboratoriesJuneau, AK, 99801, USA
| | | | | | - Werner Kloas
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries - IGB (Forschungsverbund Berlin), Müggelseedamm 301/310, D-12587, Berlin, Germany
| | - Sven Wuertz
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries - IGB (Forschungsverbund Berlin), Müggelseedamm 301/310, D-12587, Berlin, Germany
| | - Matthias Stöck
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries - IGB (Forschungsverbund Berlin), Müggelseedamm 301/310, D-12587, Berlin, Germany
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Huang H, Liu Y, Wang Q, Dong C, Dong L, Zhang J, Yang Y, Hao X, Li W, Rosa IF, Doretto LB, Cao X, Shao C. Molecular and Physiological Effects of 17α-methyltestosterone on Sex Differentiation of Black Rockfish, Sebastes schlegelii. Genes (Basel) 2024; 15:605. [PMID: 38790234 PMCID: PMC11120931 DOI: 10.3390/genes15050605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
It is widely known that all-female fish production holds economic value for aquaculture. Sebastes schlegelii, a preeminent economic species, exhibits a sex dimorphism, with females surpassing males in growth. In this regard, achieving all-female black rockfish production could significantly enhance breeding profitability. In this study, we utilized the widely used male sex-regulating hormone, 17α-methyltestosterone (MT) at three different concentrations (20, 40, and 60 ppm), to produce pseudomales of S. schlegelii for subsequent all-female offspring breeding. Long-term MT administration severely inhibits the growth of S. schlegelii, while short term had no significant impact. Histological analysis confirmed sex reversal at all MT concentrations; however, both medium and higher MT concentrations impaired testis development. MT also influenced sex steroid hormone levels in pseudomales, suppressing E2 while increasing T and 11-KT levels. In addition, a transcriptome analysis revealed that MT down-regulated ovarian-related genes (cyp19a1a and foxl2) while up-regulating male-related genes (amh) in pseudomales. Furthermore, MT modulated the TGF-β signaling and steroid hormone biosynthesis pathways, indicating its crucial role in S. schlegelii sex differentiation. Therefore, the current study provides a method for achieving sexual reversal using MT in S. schlegelii and offers an initial insight into the underlying mechanism of sexual reversal in this species.
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Affiliation(s)
- Haijun Huang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China;
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Yuyan Liu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Qian Wang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Caichao Dong
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Le Dong
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Jingjing Zhang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Yu Yang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Xiancai Hao
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Weijing Li
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Ivana F. Rosa
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 01049-010, Brazil;
| | - Lucas B. Doretto
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
| | - Xuebin Cao
- School of Marine Sciences, Ningbo University, Ningbo 315211, China;
| | - Changwei Shao
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (Y.L.); (Q.W.); (C.D.); (L.D.); (J.Z.); (Y.Y.); (X.H.); (W.L.); (L.B.D.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Marine Science and Technology Center, Qingdao 266237, China
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5
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Zhu B, Gao T, He Y, Qu Y, Zhang X. Population Genomics of Commercial Fish Sebastes schlegelii of the Bohai and Yellow Seas (China) Using a Large SNP Panel from GBS. Genes (Basel) 2024; 15:534. [PMID: 38790163 PMCID: PMC11121270 DOI: 10.3390/genes15050534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024] Open
Abstract
Sebastes schlegelii is one of the most commercially important marine fish in the northwestern Pacific. However, little information about the genome-wide genetic characteristics is available for S. schlegelii individuals from the Bohai and Yellow Seas. In this study, a total of 157,778, 174,480, and 188,756 single-nucleotide polymorphisms from Dalian (DL), Yantai (YT), and Qingdao (QD) coastal waters of China were, respectively, identified. Sixty samples (twenty samples per population) were clustered together, indicating shallow structures and close relationships with each other. The observed heterozygosity, expected heterozygosity, polymorphism information content, and nucleotide diversity ranged from 0.14316 to 0.17684, from 0.14035 to 0.17145, from 0.20672 to 0.24678, and from 7.63 × 10-6 to 8.77 × 10-6, respectively, indicating the slight difference in genetic diversity among S. schlegelii populations, and their general genetic diversity was lower compared to other marine fishes. The population divergence showed relatively low levels (from 0.01356 to 0.01678) between S. schlegelii populations. Dispersing along drifting seaweeds, as well as the ocean current that flows along the western and northern coasts of the Yellow Sea and southward along the eastern coast of China might be the major reasons for the weak genetic differentiation. These results form the basis of the population genetic characteristics of S. schlegelii based on GBS (Genotyping by Sequencing). In addition to basic population genetic information, our results provid a theoretical basis for further studies aimed at protecting and utilizing S. schlegelii resources.
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Affiliation(s)
- Beiyan Zhu
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China; (B.Z.); (T.G.); (X.Z.)
| | - Tianxiang Gao
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China; (B.Z.); (T.G.); (X.Z.)
| | - Yan He
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China;
| | - Yinquan Qu
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China; (B.Z.); (T.G.); (X.Z.)
| | - Xiumei Zhang
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China; (B.Z.); (T.G.); (X.Z.)
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Ding H, Wang M, Wang M, Wu S, Guo Y, Gao Y, Li L, Bao Z, Wang B, Hu J. Synchronously sexual maturity in hermaphrodite fish as revealed by transcriptome analysis in Plectropomus leopardus. Gene 2024; 901:148166. [PMID: 38242379 DOI: 10.1016/j.gene.2024.148166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/16/2023] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
Leopard coral grouper (Plectropomus leopardus) is a type of hermaphrodite fish, but the mechanisms of gonadal development and gametogenesis remain unclear. In the present study, we performed histological observation and transcriptomic analysis during the process of sexual differentiation in P. leopardus. According to the histological results, sexual differentiation was completed at 15 months old, developed synchronously in male and female individuals at 2 years old, and matured synchronously at 3 years old. Comparative transcriptomic analyses showed that the gonadal had differentiated by 15 months old, with enrichment of pathways associated with cell proliferation, transcriptional metabolism, and germline stem cell differentiation. Furthermore, cilium movement and fatty acid anabolism, which are associated with spermatogenesis and oocyte growth, were significantly enriched at 3 years old. In addition, key genes associated with male and female sex differentiation, such as amh, dmrt1, dmrt2a, zp4, sox3, gdf9, and gsdf, were identified by weighted gene co-expression network analysis (WGCNA). Finally, the localization and expression of the key genes amh and sox3 were observed in different cell types within the testes and ovaries, reflecting the development of the testes and ovaries, respectively. All the evidence indicates that P. leopardus is a hermaphrodite and synchronously sexually mature fish. Our study complements the gonadal development patterns of hermaphroditic fish by providing new insights into the molecular mechanisms underlying sexual differentiation and sex change in hermaphroditic groupers.
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Affiliation(s)
- Hui Ding
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Mengya Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Mingyi Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Shaoxuan Wu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Yilan Guo
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Yurui Gao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Lin Li
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China
| | - Zhenmin Bao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China; Hainan Seed Industry Laboratory, Sanya 572025, China; Southern Marine Science and Engineer Guangdong Laboratory, Guangzhou 511458, China
| | - Bo Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China; Hainan Seed Industry Laboratory, Sanya 572025, China.
| | - Jingjie Hu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Qingdao/Sanya, China; Hainan Seed Industry Laboratory, Sanya 572025, China; Southern Marine Science and Engineer Guangdong Laboratory, Guangzhou 511458, China.
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7
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Zhang F, Song W, Yang R, Jin C, Xie Y, Shen Y, Gao X, Sun H, Nie T, Yue X, Song Z, Qi J, Zhang Q, He Y. Semen promotes oocyte development in Sebastesschlegelii elucidating ovarian development dynamics in live-bearing fish. iScience 2024; 27:109193. [PMID: 38433916 PMCID: PMC10907845 DOI: 10.1016/j.isci.2024.109193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 11/17/2023] [Accepted: 02/07/2024] [Indexed: 03/05/2024] Open
Abstract
In some vertebrates and invertebrates, semen release factors affecting female physiology and behavior. Here, we report that semen delivered to females is potentially beneficial for promoting oocyte development in a viviparous teleost, Sebastes schlegelii. 88% of mated ovaries develop normally and give birth to larval fish, whereas 61% of non-mated ovaries are arrested in the previtellogenic stage. Semen's significant role (p < 0.0001) in promoting oocyte development may involve remodeling follicular cells and regulating the expression of the extracellular matrix, which facilitates cell communication. Furthermore, the ovarian response to semen may influence the brain, affecting hormone release, follicular cell development and steroid production, and crucial for oocyte growth. This mechanism, which could potentially delay maternal investment in offspring until male genetic input occurs to avoid energy wastage, has not been previously described in teleosts. These findings enhance our understanding of ovarian development in viviparous fish, with broader implications for reproductive biology.
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Affiliation(s)
- Fengyan Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Weihao Song
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Ruiyan Yang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Chaofan Jin
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Yuheng Xie
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Yiyang Shen
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Xiangyu Gao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Hao Sun
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Tianci Nie
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Xinlu Yue
- Weihai Shenghang Ocean Science and Technology Co., Ltd, Weihai, Shandong 264200, China
| | - Zongcheng Song
- Weihai Shenghang Ocean Science and Technology Co., Ltd, Weihai, Shandong 264200, China
| | - Jie Qi
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Quanqi Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
- Weihai Shenghang Ocean Science and Technology Co., Ltd, Weihai, Shandong 264200, China
| | - Yan He
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
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8
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Wilson CA, Batzel P, Postlethwait JH. Direct male development in chromosomally ZZ zebrafish. Front Cell Dev Biol 2024; 12:1362228. [PMID: 38529407 PMCID: PMC10961373 DOI: 10.3389/fcell.2024.1362228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 02/20/2024] [Indexed: 03/27/2024] Open
Abstract
The genetics of sex determination varies across taxa, sometimes even within a species. Major domesticated strains of zebrafish (Danio rerio), including AB and TU, lack a strong genetic sex determining locus, but strains more recently derived from nature, like Nadia (NA), possess a ZZ male/ZW female chromosomal sex-determination system. AB fish pass through a juvenile ovary stage, forming oocytes that survive in fish that become females but die in fish that become males. To understand mechanisms of gonad development in NA zebrafish, we studied histology and single cell transcriptomics in developing ZZ and ZW fish. ZW fish developed oocytes by 22 days post-fertilization (dpf) but ZZ fish directly formed testes, avoiding a juvenile ovary phase. Gonads of some ZW and WW fish, however, developed oocytes that died as the gonad became a testis, mimicking AB fish, suggesting that the gynogenetically derived AB strain is chromosomally WW. Single-cell RNA-seq of 19dpf gonads showed similar cell types in ZZ and ZW fish, including germ cells, precursors of gonadal support cells, steroidogenic cells, interstitial/stromal cells, and immune cells, consistent with a bipotential juvenile gonad. In contrast, scRNA-seq of 30dpf gonads revealed that cells in ZZ gonads had transcriptomes characteristic of testicular Sertoli, Leydig, and germ cells while ZW gonads had granulosa cells, theca cells, and developing oocytes. Hematopoietic and vascular cells were similar in both sex genotypes. These results show that juvenile NA zebrafish initially develop a bipotential gonad; that a factor on the NA W chromosome, or fewer than two Z chromosomes, is essential to initiate oocyte development; and without the W factor, or with two Z doses, NA gonads develop directly into testes without passing through the juvenile ovary stage. Sex determination in AB and TU strains mimics NA ZW and WW zebrafish, suggesting loss of the Z chromosome during domestication. Genetic analysis of the NA strain will facilitate our understanding of the evolution of sex determination mechanisms.
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9
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Kitano J, Ansai S, Takehana Y, Yamamoto Y. Diversity and Convergence of Sex-Determination Mechanisms in Teleost Fish. Annu Rev Anim Biosci 2024; 12:233-259. [PMID: 37863090 DOI: 10.1146/annurev-animal-021122-113935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
Sexual reproduction is prevalent across diverse taxa. However, sex-determination mechanisms are so diverse that even closely related species often differ in sex-determination systems. Teleost fish is a taxonomic group with frequent turnovers of sex-determining mechanisms and thus provides us with great opportunities to investigate the molecular and evolutionary mechanisms underlying the turnover of sex-determining systems. Here, we compile recent studies on the diversity of sex-determination mechanisms in fish. We demonstrate that genes in the TGF-β signaling pathway are frequently used for master sex-determining (MSD) genes. MSD genes arise via two main mechanisms, duplication-and-transposition and allelic mutations, with a few exceptions. We also demonstrate that temperature influences sex determination in many fish species, even those with sex chromosomes, with higher temperatures inducing differentiation into males in most cases. Finally, we review theoretical models for the turnover of sex-determining mechanisms and discuss what questions remain elusive.
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Affiliation(s)
- Jun Kitano
- Ecological Genetics Laboratory, National Institute of Genetics, Mishima, Shizuoka, Japan;
| | - Satoshi Ansai
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi, Japan
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan;
| | - Yusuke Takehana
- Faculty of Bio-Science, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, Japan;
| | - Yoji Yamamoto
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Tokyo, Japan;
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10
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Zhang Q, Chen J, Wang W, Lin J, Guo J. Genome-wide investigation of the TGF-β superfamily in scallops. BMC Genomics 2024; 25:24. [PMID: 38166626 PMCID: PMC10763453 DOI: 10.1186/s12864-023-09942-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Transforming growth factor β (TGF-β) superfamily genes can regulate various processes, especially in embryogenesis, adult development, and homeostasis. To understand the evolution and divergence patterns of the TGF-β superfamily in scallops, genome-wide data from the Bay scallop (Argopecten irradians), the Zhikong scallop (Chlamys farreri) and the Yesso scallop (Mizuhopecten yessoensis) were systematically analysed using bioinformatics methods. RESULTS Twelve members of the TGF-β superfamily were identified for each scallop. The phylogenetic tree showed that these genes were grouped into 11 clusters, including BMPs, ADMP, NODAL, GDF, activin/inhibin and AMH. The number of exons and the conserved motif showed some differences between different clusters, while genes in the same cluster exhibited high similarity. Selective pressure analysis revealed that the TGF-β superfamily in scallops was evolutionarily conserved. The spatiotemporal expression profiles suggested that different TGF-β members have distinct functions. Several BMP-like and NODAL-like genes were highly expressed in early developmental stages, patterning the embryonic body plan. GDF8/11-like genes showed high expression in striated muscle and smooth muscle, suggesting that these genes may play a critical role in regulating muscle growth. Further analysis revealed a possible duplication of AMH, which played a key role in gonadal growth/maturation in scallops. In addition, this study found that several genes were involved in heat and hypoxia stress in scallops, providing new insights into the function of the TGF-β superfamily. CONCLUSION Characteristics of the TGF-β superfamily in scallops were identified, including sequence structure, phylogenetic relationships, and selection pressure. The expression profiles of these genes in different tissues, at different developmental stages and under different stresses were investigated. Generally, the current study lays a foundation for further study of their pleiotropic biological functions in scallops.
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Affiliation(s)
- Qian Zhang
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Bioaffiliationersity, Minjiang University, Fuzhou, 350108, China
| | - Jianming Chen
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China.
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Bioaffiliationersity, Minjiang University, Fuzhou, 350108, China.
| | - Wei Wang
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China.
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Bioaffiliationersity, Minjiang University, Fuzhou, 350108, China.
| | - Jingyu Lin
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Jiabao Guo
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
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11
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Lasalle A, Benech-Correa G, Brunet FG, Vizziano-Cantonnet D. hsd17b1 is a key gene for ovarian differentiation of the Siberian sturgeon. Mol Reprod Dev 2024; 91:e23729. [PMID: 38282315 DOI: 10.1002/mrd.23729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/21/2023] [Accepted: 12/28/2023] [Indexed: 01/30/2024]
Abstract
This is the first work using gonads from undifferentiated, genetically-sexed Siberian sturgeon describing expression changes in genes related to steroid synthesis and female and male sex differentiation. One factor identified as relevant for ovarian differentiation was the gene coding for the enzyme Hsd17b1, which converts estrone into estradiol-17β. hsd17b1 was highly activated in female gonads at 2.5 months of age, around the onset of sex differentiation, preceding activation of two other genes involved in estrogen production (cyp19a1 and foxl2). hsd17b1 was also strongly repressed in males. Two known foxl2 paralogs are found in Siberian sturgeon-foxl2 and foxl2l-but only foxl2 appeared to be associated with ovarian differentiation. With regard to the male pathway, neither 11-oxygenated androgens nor classic male genes (amh, dmrt1, sox9, and dhh) were found to be involved in male sex differentiation, leaving open the question of which genes participate in early male gonad development in this ancient fish. Taken together, these results indicate an estrogen-dependence of female sex differentiation and 11-oxygenated androgen-independence of male sex differentiation.
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Affiliation(s)
- André Lasalle
- Laboratorio de Fisiología de la Reproducción y Ecología de Peces, Instituto de Biología, Facultad de Ciencias, Universidad de la República Oriental del Uruguay, Montevideo, Uruguay
| | - Germán Benech-Correa
- Laboratorio de Fisiología de la Reproducción y Ecología de Peces, Instituto de Biología, Facultad de Ciencias, Universidad de la República Oriental del Uruguay, Montevideo, Uruguay
| | - Frédéric G Brunet
- Institut de Génomique Fonctionnelle de Lyon, UMR5242, Ecole Normale Supérieure de Lyon, Centre National de la Recherche Scientifique, Université Claude Bernard, Lyon, France
| | - Denise Vizziano-Cantonnet
- Laboratorio de Fisiología de la Reproducción y Ecología de Peces, Instituto de Biología, Facultad de Ciencias, Universidad de la República Oriental del Uruguay, Montevideo, Uruguay
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12
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Wilson CA, Batzel P, Postlethwait JH. Direct Male Development in Chromosomally ZZ Zebrafish. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.27.573483. [PMID: 38234788 PMCID: PMC10793451 DOI: 10.1101/2023.12.27.573483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The genetics of sex determination varies across taxa, sometimes even within a species. Major domesticated strains of zebrafish ( Danio rerio ), including AB and TU, lack a strong genetic sex determining locus, but strains more recently derived from nature, like Nadia (NA), possess a ZZ male/ZW female chromosomal sex-determination system. AB strain fish pass through a juvenile ovary stage, forming oocytes that survive in fish that become females but die in fish that become males. To understand mechanisms of gonad development in NA zebrafish, we studied histology and single cell transcriptomics in developing ZZ and ZW fish. ZW fish developed oocytes by 22 days post-fertilization (dpf) but ZZ fish directly formed testes, avoiding a juvenile ovary phase. Gonads of some ZW and WW fish, however, developed oocytes that died as the gonad became a testis, mimicking AB fish, suggesting that the gynogenetically derived AB strain is chromosomally WW. Single-cell RNA-seq of 19dpf gonads showed similar cell types in ZZ and ZW fish, including germ cells, precursors of gonadal support cells, steroidogenic cells, interstitial/stromal cells, and immune cells, consistent with a bipotential juvenile gonad. In contrast, scRNA-seq of 30dpf gonads revealed that cells in ZZ gonads had transcriptomes characteristic of testicular Sertoli, Leydig, and germ cells while ZW gonads had granulosa cells, theca cells, and developing oocytes. Hematopoietic and vascular cells were similar in both sex genotypes. These results show that juvenile NA zebrafish initially develop a bipotential gonad; that a factor on the NA W chromosome or fewer than two Z chromosomes is essential to initiate oocyte development; and without the W factor or with two Z doses, NA gonads develop directly into testes without passing through the juvenile ovary stage. Sex determination in AB and TU strains mimics NA ZW and WW zebrafish, suggesting loss of the Z chromosome during domestication. Genetic analysis of the NA strain will facilitate our understanding of the evolution of sex determination mechanisms.
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13
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Kuhl H, Euclide PT, Klopp C, Cabau C, Zahm M, Roques C, Iampietro C, Kuchly C, Donnadieu C, Feron R, Parrinello H, Poncet C, Jaffrelo L, Confolent C, Wen M, Herpin A, Jouanno E, Bestin A, Haffray P, Morvezen R, de Almeida TR, Lecocq T, Schaerlinger B, Chardard D, Żarski D, Larson W, Postlethwait JH, Timirkhanov S, Kloas W, Wuertz S, Stöck M, Guiguen Y. Multi-genome comparisons reveal gain-and-loss evolution of the anti-Mullerian hormone receptor type 2 gene, an old master sex determining gene, in Percidae. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.13.566804. [PMID: 38014084 PMCID: PMC10680665 DOI: 10.1101/2023.11.13.566804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
The Percidae family comprises many fish species of major importance for aquaculture and fisheries. Based on three new chromosome-scale assemblies in Perca fluviatilis, Perca schrenkii and Sander vitreus along with additional percid fish reference genomes, we provide an evolutionary and comparative genomic analysis of their sex-determination systems. We explored the fate of a duplicated anti-Mullerian hormone receptor type-2 gene (amhr2bY), previously suggested to be the master sex determining (MSD) gene in P. flavescens. Phylogenetically related and structurally similar amhr2 duplications (amhr2b) were found in P. schrenkii and Sander lucioperca, potentially dating this duplication event to their last common ancestor around 19-27 Mya. In P. fluviatilis and S. vitreus, this amhr2b duplicate has been lost while it was subject to amplification in S. lucioperca. Analyses of the amhr2b locus in P. schrenkii suggest that this duplication could be also male-specific as it is in P. flavescens. In P. fluviatilis, a relatively small (100 kb) non-recombinant sex-determining region (SDR) was characterized on chromosome-18 using population-genomics approaches. This SDR is characterized by many male-specific single-nucleotide variants (SNVs) and no large duplication/insertion event, suggesting that P. fluviatilis has a male heterogametic sex determination system (XX/XY), generated by allelic diversification. This SDR contains six annotated genes, including three (c18h1orf198, hsdl1, tbc1d32) with higher expression in testis than ovary. Together, our results provide a new example of the highly dynamic sex chromosome turnover in teleosts and provide new genomic resources for Percidae, including sex-genotyping tools for all three known Perca species.
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Affiliation(s)
- Heiner Kuhl
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries – IGB (Forschungsverbund Berlin), Müggelseedamm 301/310, D-12587 Berlin, Germany
| | - Peter T Euclide
- Department of Forestry and Natural Resources | Illinois-Indiana Sea Grant, Purdue University, West Lafayette, Indiana, USA
| | - Christophe Klopp
- Sigenae, Plateforme Bioinformatique, Genotoul, BioinfoMics, UR875 Biométrie et Intelligence Artificielle, INRAE, Castanet-Tolosan, France
| | - Cedric Cabau
- Sigenae, GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet Tolosan, France
| | - Margot Zahm
- Sigenae, Plateforme Bioinformatique, Genotoul, BioinfoMics, UR875 Biométrie et Intelligence Artificielle, INRAE, Castanet-Tolosan, France
| | - Céline Roques
- INRAE, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | | | - Claire Kuchly
- INRAE, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | | | - Romain Feron
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Hugues Parrinello
- Montpellier GenomiX (MGX), c/o Institut de Génomique Fonctionnelle, 141 rue de la Cardonille, 34094, Montpellier Cedex 05, France
| | - Charles Poncet
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Lydia Jaffrelo
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Carole Confolent
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Ming Wen
- INRAE, LPGP, 35000, Rennes, France
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
| | | | | | - Anastasia Bestin
- SYSAAF, Station INRAE-LPGP, Campus de Beaulieu, 35042, Rennes cedex, France
| | - Pierrick Haffray
- SYSAAF, Station INRAE-LPGP, Campus de Beaulieu, 35042, Rennes cedex, France
| | - Romain Morvezen
- SYSAAF, Station INRAE-LPGP, Campus de Beaulieu, 35042, Rennes cedex, France
| | | | - Thomas Lecocq
- University of Lorraine, INRAE, UR AFPA, Nancy, France
| | | | | | - Daniel Żarski
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, ul. Tuwima 10, 10-748, Olsztyn, Poland
| | - Wes Larson
- National Oceanographic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center, Auke Bay Laboratories, 17109 Point Lena Loop Road, Juneau, AK, 99801, USA
| | | | | | - Werner Kloas
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries – IGB (Forschungsverbund Berlin), Müggelseedamm 301/310, D-12587 Berlin, Germany
| | - Sven Wuertz
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries – IGB (Forschungsverbund Berlin), Müggelseedamm 301/310, D-12587 Berlin, Germany
| | - Matthias Stöck
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries – IGB (Forschungsverbund Berlin), Müggelseedamm 301/310, D-12587 Berlin, Germany
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14
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Yu Y, Chen M, Shen ZG. Molecular biological, physiological, cytological, and epigenetic mechanisms of environmental sex differentiation in teleosts: A systematic review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115654. [PMID: 37918334 DOI: 10.1016/j.ecoenv.2023.115654] [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: 08/23/2023] [Revised: 10/26/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023]
Abstract
Human activities have been exerting widespread stress and environmental risks in aquatic ecosystems. Environmental stress, including temperature rise, acidification, hypoxia, light pollution, and crowding, had a considerable negative impact on the life histology of aquatic animals, especially on sex differentiation (SDi) and the resulting sex ratios. Understanding how the sex of fish responds to stressful environments is of great importance for understanding the origin and maintenance of sex, the dynamics of the natural population in the changing world, and the precise application of sex control in aquaculture. This review conducted an exhaustive search of the available literature on the influence of environmental stress (ES) on SDi. Evidence has shown that all types of ES can affect SDi and universally result in an increase in males or masculinization, which has been reported in 100 fish species and 121 cases. Then, this comprehensive review aimed to summarize the molecular biology, physiology, cytology, and epigenetic mechanisms through which ES contributes to male development or masculinization. The relationship between ES and fish SDi from multiple aspects was analyzed, and it was found that environmental sex differentiation (ESDi) is the result of the combined effects of genetic and epigenetic factors, self-physiological regulation, and response to environmental signals, which involves a sophisticated network of various hormones and numerous genes at multiple levels and multiple gradations in bipotential gonads. In both normal male differentiation and ES-induced masculinization, the stress pathway and epigenetic regulation play important roles; however, how they co-regulate SDi is unclear. Evidence suggests that the universal emergence or increase in males in aquatic animals is an adaptation to moderate ES. ES-induced sex reversal should be fully investigated in more fish species and extensively in the wild. The potential aquaculture applications and difficulties associated with ESDi have also been addressed. Finally, the knowledge gaps in the ESDi are presented, which will guide the priorities of future research.
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Affiliation(s)
- Yue Yu
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, Wuhan, PR China
| | - Min Chen
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, Wuhan, PR China
| | - Zhi-Gang Shen
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, Wuhan, PR China.
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15
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Wang T, Wang X, Zhao N, Liu Q, Song Z, Li J. Developmental regulation of the male urogenital papilla in the male marine teleost black rockfish, Sebastes schlegelii (Hilgendorf, 1880)†. Biol Reprod 2023; 109:461-473. [PMID: 37552063 DOI: 10.1093/biolre/ioad086] [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: 03/21/2023] [Revised: 06/18/2023] [Accepted: 07/28/2023] [Indexed: 08/09/2023] Open
Abstract
The male external genitalia of the black rockfish (Sebastes schlegelii Hilgendorf, 1880) is a fleshy protrusion known as the urogenital papilla (UGP), which functions to deliver sperm into the female reproductive tract for internal fertilization. It is not known which genes regulate the development of the UGP. The aim of this study was to identify key genes that regulate the development of the UGP in black rockfish and to determine the distribution of androgen receptor gene (ar) in the UGP. A total of 26 adult males and 560 juvenile fish were used in the experiment, in which we divided all normally developing juveniles into normal development and androgen groups. We added methyltestosterone solution (100 μg/l) to the androgen group-treated fish tank, soaked for 2 h per day for 38 days, and sampled 5~10 samples each time every 5 days during the culture process. Gene expression changes related to UGP were analyzed with tissue specificity between control and androgen groups during sex differentiation, adult male maturation, and the copulation stage (September to December) using real-time quantitative polymerase chain reaction. The expression of ar was also localized by two-color in situ hybridization in the UGP region of juvenile fish. Androgen treatment enhanced ar expression levels and the ar signal was stronger in the UGP region of both adult breeding fish and androgen-treated juvenile fish. This study provides insights into the regulation of the external genitalia of black rockfish and presents vital information for the artificial breeding of viviparous fish.
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Affiliation(s)
- Tao Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xueying Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Ning Zhao
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Qinghua Liu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zongcheng Song
- Weihai Shenghang Aquatic Product Science and Technology Co. Ltd., Weihai, China
| | - Jun Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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16
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Sykes NTB, Kolora SRR, Sudmant PH, Owens GL. Rapid turnover and evolution of sex-determining regions in Sebastes rockfishes. Mol Ecol 2023; 32:5013-5027. [PMID: 37548650 DOI: 10.1111/mec.17090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/08/2023]
Abstract
Nature has evolved a wealth of sex determination (SD) mechanisms, driven by both genetic and environmental factors. Recent studies of SD in fishes have shown that not all taxa fit the classic paradigm of sex chromosome evolution and diverse SD methods can be found even among closely related species. Here, we apply a suite of genomic approaches to investigate sex-biased genomic variation in eight species of Sebastes rockfish found in the northeast Pacific Ocean. Using recently assembled chromosome-level rockfish genomes, we leverage published sequence data to identify disparate sex chromosomes and sex-biased loci in five species. We identify two putative male sex chromosomes in S. diaconus, a single putative sex chromosome in the sibling species S. carnatus and S. chrysomelas, and an unplaced sex determining contig in the sibling species S. miniatus and S. crocotulus. Our study provides evidence for disparate means of sex determination within a recently diverged set of species and sheds light on the diverse origins of sex determination mechanisms present in the animal kingdom.
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Affiliation(s)
- Nathan T B Sykes
- Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - Sree Rohit Raj Kolora
- Department of Integrative Biology, University of California, Berkeley, California, USA
| | - Peter H Sudmant
- Department of Integrative Biology, University of California, Berkeley, California, USA
- Center for Computational Biology, University of California, Berkeley, California, USA
| | - Gregory L Owens
- Department of Biology, University of Victoria, Victoria, British Columbia, Canada
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17
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Yamaguchi Y, Namgung J, Nagata J, Kawasaki T, Hara A, Todo T, Hiramatsu N. Identification and characterization of lipocalin-type prostaglandin D 2 synthase homologs in the urine of male rockfish. Gene X 2023; 854:147093. [PMID: 36476662 DOI: 10.1016/j.gene.2022.147093] [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: 07/31/2022] [Revised: 11/15/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Black rockfish (Sebastes schlegelii) and its relatives are viviparous marine fish. Males produce urinary proteins during the copulation season; however, the identity of these proteins was unknown. In this study, we focused on high-molecular-weight urinary proteins (HMWups) in male black rockfish. The HMWups were identified by liquid chromatography and tandem mass spectrometry (LC-MS/MS) of urine. In silico analyses of RNA-seq data predicted the tissue distribution of candidate HMWup transcripts and their gene structures. Candidate cDNAs were cloned and a recombinant protein of a major candidate was prepared. Western blotting of urine using an antiserum against the recombinant protein was performed to reconfirm the LC-MS/MS results. Quantitative real-time polymerase chain reaction (qRT-PCR) and immunohistochemistry were employed to validate the prediction by RNA-seq and identify the cells producing HMWups, respectively. LC-MS/MS, in conjunction with Western blotting and cDNA cloning, identified the HMWups as lipocalin-type prostaglandin D2 synthase (l-PGDS) homologs. RNA-seq analyses and qRT-PCR revealed that the l-PGDS homolog transcripts were dominantly expressed in the testis and male kidney; Sertoli cells and epithelial cells in the renal tubules were immunoreactive. These results indicated that major protein components in the urine of male black rockfish are l-PGDS homologs, potentially produced by the renal tubules in the kidney. Male rockfish (genus Sebastes) are thought to release unknown pheromone substances during mating behavior. The knowledge and tools obtained in this study empower research into the role(s) of HMWups in pheromone systems underlying rockfish reproduction. No protein-type teleost pheromone has heretofore been discovered.
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Affiliation(s)
- Yo Yamaguchi
- Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido 041-8611, Japan
| | - Jin Namgung
- Education & Research Group for Future Strategy of Aquatic Life Industry, Jeju National University, Jeju 63243, Republic of Korea
| | - Jun Nagata
- Division of Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido 041-8611, Japan
| | - Takuma Kawasaki
- Mariculture Fisheries Research Institute, Fisheries Research Department, Hokkaido Research Organization, 1-156-3 Funami, Muroran, Hokkaido 051-0013, Japan
| | - Akihiko Hara
- Division of Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido 041-8611, Japan
| | - Takashi Todo
- Division of Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido 041-8611, Japan
| | - Naoshi Hiramatsu
- Division of Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido 041-8611, Japan.
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18
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Jin C, Yan K, Wang M, Song W, Kong X, Zhang Z. Identification, Characterization and Functional Analysis of Fibroblast Growth Factors in Black Rockfish ( Sebastes schlegelii). Int J Mol Sci 2023; 24:ijms24043626. [PMID: 36835037 PMCID: PMC9958866 DOI: 10.3390/ijms24043626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/04/2023] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
Fibroblast growth factors (FGFs) are short polypeptides that play essential roles in various cellular biological processes, including cell migration, proliferation, and differentiation, as well as tissue regeneration, immune response, and organogenesis. However, studies focusing on the characterization and function of FGF genes in teleost fishes are still limited. In this study, we identified and characterized expression patterns of 24 FGF genes in various tissues of embryonic and adult specimens of the black rockfish (Sebates schlegelii). Nine FGF genes were found to play essential roles in myoblast differentiation, as well as muscle development and recovery in juvelines of S. schlegelii. Moreover, sex-biased expression pattern of multiple FGF genes was recorded in the species' gonads during its development. Among them, expression of the FGF1 gene was recorded in interstitial and sertoli cells of testes, promoting germ-cell proliferation and differentiation. In sum, the obtained results enabled systematic and functional characterization of FGF genes in S. schlegelii, laying a foundation for further studies on FGF genes in other large teleost fishes.
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Affiliation(s)
- Chaofan Jin
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Kai Yan
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Mengya Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
- Laboratory of Tropical Marine Germplasm Resources and Breeding Engineering, Sanya Oceanographic Institution, Ocean University of China, Sanya 572000, China
| | - Weihao Song
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xiangfu Kong
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Zhengrui Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
- Correspondence:
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19
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Master-Key Regulators of Sex Determination in Fish and Other Vertebrates-A Review. Int J Mol Sci 2023; 24:ijms24032468. [PMID: 36768795 PMCID: PMC9917144 DOI: 10.3390/ijms24032468] [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: 12/28/2022] [Revised: 01/12/2023] [Accepted: 01/25/2023] [Indexed: 02/01/2023] Open
Abstract
In vertebrates, mainly single genes with an allele ratio of 1:1 trigger sex-determination (SD), leading to initial equal sex-ratios. Such genes are designated master-key regulators (MKRs) and are frequently associated with DNA structural variations, such as copy-number variation and null-alleles. Most MKR knowledge comes from fish, especially cichlids, which serve as a genetic model for SD. We list 14 MKRs, of which dmrt1 has been identified in taxonomically distant species such as birds and fish. The identification of MKRs with known involvement in SD, such as amh and fshr, indicates that a common network drives SD. We illustrate a network that affects estrogen/androgen equilibrium, suggesting that structural variation may exert over-expression of the gene and thus form an MKR. However, the reason why certain factors constitute MKRs, whereas others do not is unclear. The limited number of conserved MKRs suggests that their heterologous sequences could be used as targets in future searches for MKRs of additional species. Sex-specific mortality, sex reversal, the role of temperature in SD, and multigenic SD are examined, claiming that these phenomena are often consequences of artificial hybridization. We discuss the essentiality of taxonomic authentication of species to validate purebred origin before MKR searches.
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20
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Liu Z, Zhou T, Gao D. Genetic and epigenetic regulation of growth, reproduction, disease resistance and stress responses in aquaculture. Front Genet 2022; 13:994471. [PMID: 36406125 PMCID: PMC9666392 DOI: 10.3389/fgene.2022.994471] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/20/2022] [Indexed: 11/25/2022] Open
Abstract
Major progress has been made with genomic and genetic studies in aquaculture in the last decade. However, research on epigenetic regulation of aquaculture traits is still at an early stage. It is apparent that most, if not all, aquaculture traits are regulated at both genetic and epigenetic levels. This paper reviews recent progress in understanding of genetic and epigenetic regulation of important aquaculture traits such as growth, reproduction, disease resistance, and stress responses. Although it is challenging to make generalized statements, DNA methylation is mostly correlated with down-regulation of gene expression, especially when at promoters and enhancers. As such, methylation of growth factors and their receptors is negatively correlated with growth; hypomethylation of genes important for stress tolerance is correlated with increased stress tolerance; hypomethylation of genes important for male or female sex differentiation leads to sex differentiation into males or females, respectively. It is apparent that environmental regulation of aquaculture traits is mediated at the level of epigenetic regulation, and such environment-induced epigenetic changes appeared to be intergenerationally inherited, but evidences for transgenerational inheritance are still limited.
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Affiliation(s)
- Zhanjiang Liu
- Department of Biology, College of Arts and Sciences, Syracuse University, Syracuse, NY, United States,*Correspondence: Zhanjiang Liu,
| | - Tao Zhou
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Dongya Gao
- Department of Biology, College of Arts and Sciences, Syracuse University, Syracuse, NY, United States
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21
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Hattori RS, Kumazawa K, Nakamoto M, Nakano Y, Yamaguchi T, Kitano T, Yamamoto E, Fuji K, Sakamoto T. Y-specific amh allele, amhy, is the master sex-determining gene in Japanese flounder Paralichthys olivaceus. Front Genet 2022; 13:1007548. [PMID: 36186422 PMCID: PMC9523440 DOI: 10.3389/fgene.2022.1007548] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/25/2022] [Indexed: 01/12/2023] Open
Abstract
Japanese flounder (Paralichthys olivaceus) is an important marine fish species of both fisheries and aquaculture in Northeast Asia. The commercial interest for all-female progenies due to several sex-related traits has prompted basic research on the mechanisms of sex determination in this species. By conducting a linkage analysis of the sex-determining locus, we initially identified 12 microsatellite markers linked to sex in 11 scaffolds, whose localization was restricted to a specific region of linkage group 9. Sequence analysis of this region identified 181 genes based on the UniProt database annotations. Among them, the amh gene was considered a potential candidate for sex determination because this gene is known to have taken over the role of sex determination in many teleosts. An in-depth sequence analysis of both the coding and non-coding regions of amh in XX and XY individuals detected nine SNPs linked with maleness. However, because these substitutions were synonymous, the upstream and downstream regions of amh were also investigated and a male-specific variant with deletions in the promoter region was detected. This truncated Y-specific amh variant was named amhy, and the amh shared by both sexes was named amhx. The association analysis using both females and males of the genotypic sex inferred by the presence/absence of amhy found complete association with phenotypic sex and genotype. Gene expression analysis in larvae derived from a single-pair progeny by quantitative real-time PCR detected amhy transcripts in the larval trunks between 20 and 100 days after hatching only in XY larvae. Localization of amhy by in situ hybridization was detected in presumptive Sertoli cells of XY gonads. Expression of amhx was almost undetectable in both XX and XY genotypes. Loss of Amh function by CRISPR-Cas9 induced male-to-female sex reversal, indicating that this gene was necessary for the masculinization of XY individuals. In conclusion, the complete linkage of amhy with males, its early expression in XY gonads before testicular differentiation, and the induction of sex reversal by loss-of-function mutation support the view that amhy is the sex-determining gene in this species.
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Affiliation(s)
- Ricardo Shohei Hattori
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Keiichiro Kumazawa
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Masatoshi Nakamoto
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Yuki Nakano
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Toshiya Yamaguchi
- Nansei Field Station, National Research and Development Agency, Japan Fisheries Research and Education Agency, Mie, Japan
| | - Takeshi Kitano
- Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
| | - Eiichi Yamamoto
- Tottori Prefectural Fisheries Experimental Station, Tottori, Japan
| | - Kanako Fuji
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Takashi Sakamoto
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Tokyo, Japan
- *Correspondence: Takashi Sakamoto,
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22
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Ansai S, Montenegro J, Masengi KWA, Nagano AJ, Yamahira K, Kitano J. Diversity of sex chromosomes in Sulawesian medaka fishes. J Evol Biol 2022; 35:1751-1764. [DOI: 10.1111/jeb.14076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/30/2022] [Accepted: 07/14/2022] [Indexed: 12/16/2022]
Affiliation(s)
- Satoshi Ansai
- Graduate School of Life Sciences Tohoku University Sendai Japan
| | - Javier Montenegro
- Tropical Biosphere Research Center University of the Ryukyus Nishihara Japan
| | | | - Atsushi J. Nagano
- Faculty of Agriculture Ryukoku University Otsu Japan
- Institute for Advanced Biosciences Keio University Tsuruoka Japan
| | - Kazunori Yamahira
- Tropical Biosphere Research Center University of the Ryukyus Nishihara Japan
| | - Jun Kitano
- Ecological Genetics Laboratory National Institute of Genetics Shizuoka Japan
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23
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Wen M, Pan Q, Jouanno E, Montfort J, Zahm M, Cabau C, Klopp C, Iampietro C, Roques C, Bouchez O, Castinel A, Donnadieu C, Parrinello H, Poncet C, Belmonte E, Gautier V, Avarre JC, Dugue R, Gustiano R, Hà TTT, Campet M, Sriphairoj K, Ribolli J, de Almeida FL, Desvignes T, Postlethwait JH, Bucao CF, Robinson-Rechavi M, Bobe J, Herpin A, Guiguen Y. An ancient truncated duplication of the anti-Müllerian hormone receptor type 2 gene is a potential conserved master sex determinant in the Pangasiidae catfish family. Mol Ecol Resour 2022; 22:2411-2428. [PMID: 35429227 PMCID: PMC9555307 DOI: 10.1111/1755-0998.13620] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/29/2022] [Accepted: 04/11/2022] [Indexed: 11/30/2022]
Abstract
The evolution of sex determination (SD) in teleosts is amazingly dynamic, as reflected by the variety of different master sex-determining genes identified. Pangasiids are economically important catfishes in South Asian countries, but little is known about their SD system. Here, we generated novel genomic resources for 12 Pangasiids and characterized their SD system. Based on a Pangasianodon hypophthalmus chromosome-scale genome assembly, we identified an anti-Müllerian hormone receptor type Ⅱ gene (amhr2) duplication, which was further characterized as being sex-linked in males and expressed only in testes. These results point to a Y chromosome male-specific duplication (amhr2by) of the autosomal amhr2a. Sequence annotation revealed that the P. hypophthalmus Amhr2by is truncated in its N-terminal domain, lacking the cysteine-rich extracellular part of the receptor that is crucial for ligand binding, suggesting a potential route for its neofunctionalization. Reference-guided assembly of 11 additional Pangasiids, along with sex-linkage studies, revealed that this truncated amhr2by duplication is a male-specific conserved gene in Pangasiids. Reconstructions of the amhr2 phylogeny suggested that amhr2by arose from an ancient duplication/insertion event at the root of the Siluroidei radiation that is dated to ~100 million years ago. Together these results bring multiple lines of evidence supporting that amhr2by is an ancient and conserved master sex-determining gene in Pangasiids, a finding that highlights the recurrent use of the transforming growth factor β pathway, which is often used for the recruitment of teleost master SD genes, and provides another empirical case towards firther understanding of dynamics of SD systems.
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Affiliation(s)
- Ming Wen
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, China
- INRAE, LPGP, Rennes, France
| | - Qiaowei Pan
- INRAE, LPGP, Rennes, France
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | | | | | - Margot Zahm
- Plate-forme bio-informatique Genotoul, Mathématiques et Informatique Appliquées de Toulouse, INRAE, Castanet Tolosan, France
| | - Cédric Cabau
- SIGENAE, GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet Tolosan, France
| | - Christophe Klopp
- Plate-forme bio-informatique Genotoul, Mathématiques et Informatique Appliquées de Toulouse, INRAE, Castanet Tolosan, France
- SIGENAE, GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet Tolosan, France
| | | | - Céline Roques
- INRAE, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | - Olivier Bouchez
- INRAE, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | - Adrien Castinel
- INRAE, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | | | - Hugues Parrinello
- Montpellier GenomiX (MGX), C/O Institut de Génomique Fonctionnelle, Montpellier, France
| | - Charles Poncet
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Elodie Belmonte
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Véronique Gautier
- GDEC Gentyane, INRAE, Université Clermont Auvergne, Clermont-Ferrand, France
| | | | - Remi Dugue
- ISEM, CNRS, IRD, Univ Montpellier, Montpellier, France
| | - Rudhy Gustiano
- Research Institute of Freshwater Fisheries (CRIFI-RIFF), Instalasi Penelitian Perikanan Air Tawar, Jakarta, Indonesia
| | - Trần Thị Thúy Hà
- Research Institute for Aquaculture No.1. Dinh Bang, Tu Son, Bac Ninh, Viet Nam
| | | | - Kednapat Sriphairoj
- Faculty of Natural Resources and Agro-Industry, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Josiane Ribolli
- Laboratório de Biologia e Cultivo de Peixes de Água Doce, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | | | - Thomas Desvignes
- Institute of Neuroscience, University of Oregon, Eugene, Oregon, USA
| | | | - Christabel Floi Bucao
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Marc Robinson-Rechavi
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
- SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
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24
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Jeffries DL, Mee JA, Peichel CL. Identification of a candidate sex determination gene in Culaea inconstans suggests convergent recruitment of an Amh duplicate in two lineages of stickleback. J Evol Biol 2022; 35:1683-1695. [PMID: 35816592 PMCID: PMC10083969 DOI: 10.1111/jeb.14034] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/07/2022] [Accepted: 05/19/2022] [Indexed: 11/29/2022]
Abstract
Sex chromosomes vary greatly in their age and levels of differentiation across the tree of life. This variation is largely due to the rates of sex chromosome turnover in different lineages; however, we still lack an explanation for why sex chromosomes are so conserved in some lineages (e.g. mammals, birds) but so labile in others (e.g. teleosts, amphibians). To identify general mechanisms driving transitions in sex determination systems or forces which favour their conservation, we first require empirical data on sex chromosome systems from multiple lineages. Stickleback fishes are a valuable model lineage for the study of sex chromosome evolution due to variation in sex chromosome systems between closely-related species. Here, we identify the sex chromosome and a strong candidate for the master sex determination gene in the brook stickleback, Culaea inconstans. Using whole-genome sequencing of wild-caught samples and a lab cross, we identify AmhY, a male specific duplication of the gene Amh, as the candidate master sex determination gene. AmhY resides on Chromosome 20 in C. inconstans and is likely a recent duplication, as both AmhY and the sex-linked region of Chromosome 20 show little sequence divergence. Importantly, this duplicate AmhY represents the second independent duplication and recruitment of Amh as the sex determination gene in stickleback and the eighth example known across teleosts. We discuss this convergence in the context of sex chromosome turnovers and the role that the Amh/AmhrII pathway, which is crucial for sex determination, may play in the evolution of sex chromosomes in teleosts.
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Affiliation(s)
- Daniel L Jeffries
- Division of Evolutionary Ecology, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Jonathan A Mee
- Department of Biology, Mount Royal University, Calgary, Alberta, Canada
| | - Catherine L Peichel
- Division of Evolutionary Ecology, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
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25
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Li XY, Mei J, Ge CT, Liu XL, Gui JF. Sex determination mechanisms and sex control approaches in aquaculture animals. SCIENCE CHINA. LIFE SCIENCES 2022; 65:1091-1122. [PMID: 35583710 DOI: 10.1007/s11427-021-2075-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/14/2022] [Indexed: 01/21/2023]
Abstract
Aquaculture is one of the most efficient modes of animal protein production and plays an important role in global food security. Aquaculture animals exhibit extraordinarily diverse sexual phenotypes and underlying mechanisms, providing an ideal system to perform sex determination research, one of the important areas in life science. Moreover, sex is also one of the most valuable traits because sexual dimorphism in growth, size, and other economic characteristics commonly exist in aquaculture animals. Here, we synthesize current knowledge of sex determination mechanisms, sex chromosome evolution, reproduction strategies, and sexual dimorphism, and also review several approaches for sex control in aquaculture animals, including artificial gynogenesis, application of sex-specific or sex chromosome-linked markers, artificial sex reversal, as well as gene editing. We anticipate that better understanding of sex determination mechanisms and innovation of sex control approaches will facilitate sustainable development of aquaculture.
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Affiliation(s)
- Xi-Yin Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Hubei Hongshan Laboratory, The Innovative Academy of Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jie Mei
- College of Fisheries, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chu-Tian Ge
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Xiao-Li Liu
- Key Laboratory of Tropical & Subtropical Fishery Resource Application & Cultivation of Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510380, China
| | - Jian-Fang Gui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Hubei Hongshan Laboratory, The Innovative Academy of Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Wuhan, 430072, China.
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26
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Gong J, Li B, Zhao J, Zhou Z, Ke Q, Zhu Q, Xu D, Zhou T, Xu P. Sex-Specific Genomic Region Identification and Molecular Sex Marker Development of Rock Bream (Oplegnathus fasciatus). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:163-173. [PMID: 35122574 DOI: 10.1007/s10126-022-10095-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Rock bream (Oplegnathus fasciatus) is a valuable commercial marine teleost species, which exhibits sexual dimorphism in growth performance. However, the absence of a rapid and cost-effective sex identification method based on sex-specific genetic marker has impeded study on sex determination mechanisms and breeding applications. In the present study, we firstly developed the PCR method for identifying potential sex-specific sequences in Oplegnathus fasciatus with the next-generation sequencing. Sex-specific genomic regions/loci for sex determination were discovered on Chr2 and Chr6 by genome-wide association analysis, sequencing depth, and heterozygosity comparison between females and males. Candidate sex-determining genes (CCDC63, ITR, WNT4) were furtherly detected in transcriptome data of testes and ovaries. Taken together, a male-specific 34-bp deletion on the Chr2 was identified and developed into molecular marker of sex for O. fasciatus. After validation in individuals with known phenotypic sexes, the accuracy was 100%. This study gives an insight into the mechanism of sex determination in O. fasciatus, and the gender marker is crucial both for future genomic research and for development of efficient and sustainable aquaculture practice.
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Affiliation(s)
- Jie Gong
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Bijun Li
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Ji Zhao
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Zhixiong Zhou
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Qiaozhen Ke
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
- State Key Laboratory of Large Yellow Croaker Breeding, Ningde Fufa Fisheries Company Limited, Ningde, China
| | - Qihui Zhu
- Zhejiang Marine Fisheries Research Institute, Zhoushan, China
| | - Dongdong Xu
- Zhejiang Marine Fisheries Research Institute, Zhoushan, China
| | - Tao Zhou
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Peng Xu
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
- State Key Laboratory of Large Yellow Croaker Breeding, Ningde Fufa Fisheries Company Limited, Ningde, China.
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27
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Sex Determination and Differentiation in Teleost: Roles of Genetics, Environment, and Brain. BIOLOGY 2021; 10:biology10100973. [PMID: 34681072 PMCID: PMC8533387 DOI: 10.3390/biology10100973] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 01/19/2023]
Abstract
The fish reproductive system is a complex biological system. Nonetheless, reproductive organ development is conserved, which starts with sex determination and then sex differentiation. The sex of a teleost is determined and differentiated from bipotential primordium by genetics, environmental factors, or both. These two processes are species-specific. There are several prominent genes and environmental factors involved during sex determination and differentiation. At the cellular level, most of the sex-determining genes suppress the female pathway. For environmental factors, there are temperature, density, hypoxia, pH, and social interaction. Once the sexual fate is determined, sex differentiation takes over the gonadal developmental process. Environmental factors involve activation and suppression of various male and female pathways depending on the sexual fate. Alongside these factors, the role of the brain during sex determination and differentiation remains elusive. Nonetheless, GnRH III knockout has promoted a male sex-biased population, which shows brain involvement during sex determination. During sex differentiation, LH and FSH might not affect the gonadal differentiation, but are required for regulating sex differentiation. This review discusses the role of prominent genes, environmental factors, and the brain in sex determination and differentiation across a few teleost species.
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