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Asiamah CA, Liu Y, Ye R, Pan Y, Lu LL, Zou K, Zhao Z, Jiang P, Su Y. Polymorphism analysis and expression profile of the estrogen receptor 2 gene in Leizhou black duck. Poult Sci 2021; 101:101630. [PMID: 35033905 PMCID: PMC8762077 DOI: 10.1016/j.psj.2021.101630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/13/2021] [Accepted: 11/25/2021] [Indexed: 12/30/2022] Open
Abstract
Our previous study on the ovarian transcriptomic analysis in Leizhou black duck revealed that the ESR2 gene was involved in hormone regulation in reproduction and the estrogen signaling pathway related to reproductive performance was enriched. This suggested that ESR2 may have a functional role in the reproductive performance of the Leizhou black duck. Thus, this study aimed at evaluating the polymorphism of the ESR2 gene and its association with egg-laying traits and the distribution pattern of ESR2 mRNA in laying and non-laying Leizhou black ducks. In this study, genomic DNA was extracted from blood samples of 101 Leizhou black ducks to identify single nucleotide polymorphisms (SNPs) of the ESR2 gene to elucidate molecular markers highly associated with egg-laying traits. Four each of laying and non-laying Leizhou black ducks were selected to collect different tissues to analyze the ESR2 gene expression. A total of 23 SNPs were identified and association analysis of the single SNP sites showed that SNPs g.56805646 T>C and exon 3-20G>A were significantly (P < 0.05) associated with egg weight. Ducks with CT and AG genotypes had significantly higher (P < 0.05) egg weights than their respective other genotypes. Haplotype association analysis of g.56805646 T>C and exon 3-20G>A showed that the haplotypes were significantly associated with egg weight. Higher egg weight was seen in individuals with H3H4 haplotypes. In the hypothalamus-pituitary-gonadal (HPG) axis, the results of qRT/PCR showed that ESR2 mRNA was significantly (P < 0.05) expressed in the ovaries of both duck groups than in the hypothalamus and pituitary. In the oviduct, ESR2 was significantly (P < 0.05) higher in the infundibulum and magnum of laying and non-laying ducks respectively. This study provides a molecular marker for selecting Leizhou black ducks for egg production. In addition, it offers theoretical knowledge for studying the related biological functions of the ESR2 gene at the cellular level.
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Affiliation(s)
- Collins Amponsah Asiamah
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China
| | - Yuanbo Liu
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China
| | - Rungen Ye
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China
| | - Yiting Pan
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China
| | - Li-Li Lu
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China
| | - Kun Zou
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China
| | - Zhihui Zhao
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China
| | - Ping Jiang
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China
| | - Ying Su
- College of Coastal Agriculture, Guangdong Ocean University, Zhanjiang, 524025, Guangdong, PR China.
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Amenyogbe E, Chen G, Wang Z, Lu X, Lin M, Lin AY. A Review on Sex Steroid Hormone Estrogen Receptors in Mammals and Fish. Int J Endocrinol 2020; 2020:5386193. [PMID: 32089683 PMCID: PMC7029290 DOI: 10.1155/2020/5386193] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/04/2019] [Accepted: 11/19/2019] [Indexed: 12/26/2022] Open
Abstract
Steroid hormones play essential roles in the reproductive biology of vertebrates. Estrogen exercises its effect through estrogen receptors and is not only a female reproductive hormone but acts virtually in all vertebrates, including fish, and is involved in the physiological and pathological states in all males and females. Estrogen has been implicated in mandible conservation and circulatory and central nervous systems as well as the reproductive system. This review intended to understand the structure, function, binding affinities, and activations of estrogens and estrogen receptors and to discuss the understanding of the role of sex steroid hormone estrogen receptors in mammals and fish.
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Affiliation(s)
- Eric Amenyogbe
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Gang Chen
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Zhongliang Wang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Xiaoying Lu
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Mingde Lin
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
| | - Ai Ying Lin
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China
- Guangdong Provincial Key Laboratory of Aquaculture in the South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes, Laboratory of Fish Aquaculture, Zhanjiang 524025, China
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Kayo D, Zempo B, Tomihara S, Oka Y, Kanda S. Gene knockout analysis reveals essentiality of estrogen receptor β1 (Esr2a) for female reproduction in medaka. Sci Rep 2019; 9:8868. [PMID: 31222039 PMCID: PMC6586646 DOI: 10.1038/s41598-019-45373-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 06/05/2019] [Indexed: 12/18/2022] Open
Abstract
In vertebrates, sex steroids play crucial roles in multiple systems related to reproduction. In females, estrogens and their receptor estrogen receptor (ER or Esr) play indispensable roles in the negative sex steroid feedback regulation of pituitary gonadotropin secretion, which prevents excessive development of ovarian follicles. However, the mechanism of this feedback regulation of a gonadotropin, follicle stimulating hormone (FSH), which is essential for folliculogenesis throughout vertebrates, is poorly understood. In the present study, we generated knockouts of all subtypes of nuclear estrogen receptors in a model teleost medaka, which is suitable for the study of endocrine control and behavioral assays, and analyzed fertility, behavior and functionality of estrogen feedback in each knockout line. Among the estrogen receptors, we revealed that an estrogen receptor Esr2a plays an essential role in this feedback regulation. In addition to this, we also found that esr2a-/- females showed oviduct atresia, which causes complete infertility. Interestingly, esr2a-/- females showed apparently normal sexual behavior but without oviposition in response to male courtship. This phenotype indicates that physical readiness and motivation of sexual behavior is independently controlled.
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Affiliation(s)
- Daichi Kayo
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan
| | - Buntaro Zempo
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan.,Department of Physiology, Division of Life Sciences, Faculty of Medicine, Osaka Medical College, 2-7 Daigakumachi, Takatsuki, Osaka, 569-8686, Japan
| | - Soma Tomihara
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan
| | - Yoshitaka Oka
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan.
| | - Shinji Kanda
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan. .,Laboratory of Physiology, Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan.
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Oogenesis and Egg Quality in Finfish: Yolk Formation and Other Factors Influencing Female Fertility. FISHES 2018. [DOI: 10.3390/fishes3040045] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Egg quality in fishes has been a topic of research in aquaculture and fisheries for decades as it represents an important life history trait and is critical for captive propagation and successful recruitment. A major factor influencing egg quality is proper yolk formation, as most fishes are oviparous and the developing offspring are entirely dependent on stored egg yolk for nutritional sustenance. These maternally derived nutrients consist of proteins, carbohydrates, lipids, vitamins, minerals, and ions that are transported from the liver to the ovary by lipoprotein particles including vitellogenins. The yolk composition may be influenced by broodstock diet, husbandry, and other intrinsic and extrinsic conditions. In addition, a number of other maternal factors that may influence egg quality also are stored in eggs, such as gene transcripts, that direct early embryonic development. Dysfunctional regulation of gene or protein expression may lead to poor quality eggs and failure to thrive within hours of fertilization. These gene transcripts may provide important markers as their expression levels may be used to screen broodstock for potential spawning success. In addition to such intrinsic factors, stress may lead to ovarian atresia or reproductive failure and can impact fish behavior, fecundity, and ovulation rate. Finally, postovulatory aging may occur when eggs become overripe and the fish fails to spawn in a timely fashion, leading to low fertility, often encountered during manual strip spawning of fish.
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Zapater C, Molés G, Muñoz I, Pinto PIS, Canario AVM, Gómez A. Differential involvement of the three nuclear estrogen receptors during oogenesis in European sea bass (Dicentrarchus labrax)†. Biol Reprod 2018; 100:757-772. [DOI: 10.1093/biolre/ioy227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 08/06/2018] [Accepted: 10/25/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Cinta Zapater
- Department of Fish Physiology and Biotechnology, Instituto de Acuicultura de Torre la Sal, Consejo Superior de Investigaciones Científicas (CSIC), Torre la Sal, Castellón, Spain
| | - Gregorio Molés
- Department of Fish Physiology and Biotechnology, Instituto de Acuicultura de Torre la Sal, Consejo Superior de Investigaciones Científicas (CSIC), Torre la Sal, Castellón, Spain
| | - Iciar Muñoz
- Department of Fish Physiology and Biotechnology, Instituto de Acuicultura de Torre la Sal, Consejo Superior de Investigaciones Científicas (CSIC), Torre la Sal, Castellón, Spain
| | - Patricia I S Pinto
- Centre of Marine Sciences (CCMAR), University of Algarve, Gambelas, Faro, Portugal
| | - Adelino V M Canario
- Centre of Marine Sciences (CCMAR), University of Algarve, Gambelas, Faro, Portugal
| | - Ana Gómez
- Department of Fish Physiology and Biotechnology, Instituto de Acuicultura de Torre la Sal, Consejo Superior de Investigaciones Científicas (CSIC), Torre la Sal, Castellón, Spain
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Filowitz GL, Rajakumar R, O’Shaughnessy KL, Cohn MJ. Cartilaginous Fishes Provide Insights into the Origin, Diversification, and Sexually Dimorphic Expression of Vertebrate Estrogen Receptor Genes. Mol Biol Evol 2018; 35:2695-2701. [DOI: 10.1093/molbev/msy165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Grant L Filowitz
- Department of Molecular Genetics and Microbiology, UF Genetics Institute, University of Florida, Gainesville, FL
| | - Rajendhran Rajakumar
- Department of Molecular Genetics and Microbiology, UF Genetics Institute, University of Florida, Gainesville, FL
| | - Katherine L O’Shaughnessy
- Department of Molecular Genetics and Microbiology, UF Genetics Institute, University of Florida, Gainesville, FL
| | - Martin J Cohn
- Department of Molecular Genetics and Microbiology, UF Genetics Institute, University of Florida, Gainesville, FL
- Department of Biology, University of Florida, Gainesville, FL
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