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Uchida M, Addai-Arhin S, Ishibashi H, Hirano M, Fukushima S, Ishibashi Y, Tominaga N, Arizono K. Developmental toxicity and transcriptome analysis of equine estrogens in developing medaka (Oryzias latipes) using nanosecond pulsed electric field incorporation. Comp Biochem Physiol C Toxicol Pharmacol 2023; 266:109547. [PMID: 36621632 DOI: 10.1016/j.cbpc.2023.109547] [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: 08/30/2022] [Revised: 12/26/2022] [Accepted: 01/01/2023] [Indexed: 01/07/2023]
Abstract
Equine estrogens (EQs) are steroidal hormones isolated from the urine of pregnant mares and are used in the formulation of human medications. This study initially investigated the embryonic developmental toxicity of equilin (Eq) and equilenin (Eqn) in medaka (Oryzias latipes). Malformations were observed in embryos exposed to nominal concentrations of 1 and 10 mg/L of Eq and Eqn. Delayed hatching was observed at 1 mg/L of Eq. To further investigate the molecular mechanism of developmental toxicity caused by Eq and Eqn, transcriptome and bioinformatics analyses were performed. Among 2016 and 3855 total differentially expressed genes (DEGs), 1117 DEGs overlapped between Eq. (55.4 % of total DEGs) and Eq. (29.0 % of total DEGs). Gene ontology indicated effects in terms related to blood circulation and cell junctions. Pathway analyses using DEGs revealed that both Eq and Eqn treatments at 10 mg/L affected various KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways, such as neuroactive ligand-receptor interaction, mitogen-activated protein kinase signaling, retinol metabolism, and cytokine-cytokine receptor interaction. These results suggest that the disruption of these KEGG pathways is involved in the developmental toxicity of EQs in medaka embryos.
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Affiliation(s)
- Masaya Uchida
- Department of Creative Engineering, National Institute of Technology, Ariake College, 150 Higashi-Hagio, Omuta, Fukuoka 836-8585, Japan
| | - Sylvester Addai-Arhin
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, 3-1-100 Higashi-ku, Tsukide, Kumamoto 862-8502, Japan; Pharmaceutical Science Department, Faculty of Health Sciences, Kumasi Technical University, Post Office Box 854, Kumasi, Ghana
| | - Hiroshi Ishibashi
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan
| | - Masashi Hirano
- Department of Bioscience, School of Agriculture, Tokai University, 9-1-1 Toroku, Higashi-ku, Kumamoto, Kumamoto 862-8652, Japan
| | - Satoshi Fukushima
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, 3-1-100 Higashi-ku, Tsukide, Kumamoto 862-8502, Japan; Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Univ. St. 1-1-1, Sanyo-Onoda, Yamaguchi 756-0884, Japan
| | - Yasuhiro Ishibashi
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, 3-1-100 Higashi-ku, Tsukide, Kumamoto 862-8502, Japan
| | - Nobuaki Tominaga
- Department of Creative Engineering, National Institute of Technology, Ariake College, 150 Higashi-Hagio, Omuta, Fukuoka 836-8585, Japan.
| | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, 3-1-100 Higashi-ku, Tsukide, Kumamoto 862-8502, Japan; Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe, Chuo-ku, Kumamoto, Kumamoto 862-0973, Japan
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Zhu Q, Qin Z, Chen R, Wang L, Tan P, Xu D. Comparative Transcriptome Analyses Characterize Expression Signatures Among Males, Females, Neo-Males, and Gynogenetic Females in the Yellow Drum (Nibea albiflora). Front Genet 2022; 13:872815. [PMID: 35646100 PMCID: PMC9136215 DOI: 10.3389/fgene.2022.872815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 04/20/2022] [Indexed: 12/02/2022] Open
Abstract
The yellow drum (Nibea albiflora) is one of the most important marine economic fish in China, and its sexually dimorphic growth makes it preferable for mono-sex culture. Although gynogenesis and neo-male induction techniques have been established, the molecular pathways and regulatory mechanisms of sex determination and maintenance in gynogenetic females and neo-males remains far from fully understood. In this study, the gene expression profiles were investigated in the gonads and brains of wild-type male, wild-type female, neo-male, and gynogenetic female yellow drum using comparative transcriptome analyses. Generally, a total of 52,999 novel transcripts were obtained in RNA-seq, of which 45,651 were isoforms of known protein-coding genes, 1,358 novel protein-coding genes, and 5,990 long non-coding RNAs. We found that the differences between wild-type males and neo-males and between wild-type females and gynogenetic females were relatively small at both the histological and transcriptomic levels, indicating that artificial gynogenesis or hormonal sex reversal may have minimal effects on normal female or male life function, respectively. In the brain, pathways such as “Oocyte meiosis”, “Cell cycle”, and “Riboflavin metabolism” were found to be significantly enriched. In the gonads, pathways such as “Prolactin signaling pathway”, “PPAR signaling pathway”, “Cholesterol metabolism”, and “Jak-STAT signaling pathway” were found to play important roles in maintaining the regular proliferation and differentiation of females and males in yellow drum. In particular, we found that zp4 might be an effective molecular marker to differentiate between gynogenetic and normal females owing to its unique expression pattern. The results of this study may help to elucidate the molecular mechanisms involved in sex maintenance in the gonads and brain and provide basic data for genetic breeding of the yellow drum.
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Affiliation(s)
- Qihui Zhu
- Key Lab of Mariculture and Enhancement of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan, China
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - Zeqian Qin
- Key Lab of Mariculture and Enhancement of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan, China
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - Ruiyi Chen
- Key Lab of Mariculture and Enhancement of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan, China
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - Ligai Wang
- Key Lab of Mariculture and Enhancement of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan, China
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - Peng Tan
- Key Lab of Mariculture and Enhancement of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan, China
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
| | - Dongdong Xu
- Key Lab of Mariculture and Enhancement of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan, China
- School of Fisheries, Zhejiang Ocean University, Zhoushan, China
- *Correspondence: Dongdong Xu,
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Yang Y, Zhou T, Liu Y, Tian C, Bao L, Wang W, Zhang Y, Liu S, Shi H, Tan S, Gao D, Dunham RA, Liu Z. Identification of an Epigenetically Marked Locus within the Sex Determination Region of Channel Catfish. Int J Mol Sci 2022; 23:ijms23105471. [PMID: 35628283 PMCID: PMC9171582 DOI: 10.3390/ijms23105471] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/06/2022] [Accepted: 05/11/2022] [Indexed: 02/01/2023] Open
Abstract
Channel catfish has an XY sex determination system. However, the X and Y chromosomes harbor an identical gene content of 950 genes each. In this study, we conducted comparative analyses of methylome and transcriptome of genetic males and genetic females before gonadal differentiation to provide insights into the mechanisms of sex determination. Differentially methylated CpG sites (DMCs) were predominantly identified on the sex chromosome, most notably within the sex determination region (SDR), although the overall methylation profiles across the entire genome were similar between genetic males and females. The drastic differences in methylation were located within the SDR at nucleotide position 14.0–20.3 Mb of the sex chromosome, making this region an epigenetically marked locus within the sex determination region. Most of the differentially methylated CpG sites were hypermethylated in females and hypomethylated in males, suggesting potential involvement of methylation modification in sex determination in channel catfish. Along with the differential methylation in the SDR, a number of differentially expressed genes within the SDR were also identified between genetic males and females, making them potential candidate genes for sex determination and differentiation in channel catfish.
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Affiliation(s)
- Yujia Yang
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Tao Zhou
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
- Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Yang Liu
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Changxu Tian
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Lisui Bao
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Wenwen Wang
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Yu Zhang
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Shikai Liu
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Huitong Shi
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Suxu Tan
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Dongya Gao
- Department of Biology, College of Arts and Sciences, Syracuse University, Syracuse, NY 13244, USA; (D.G.); (Z.L.)
| | - Rex A. Dunham
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA; (Y.Y.); (T.Z.); (Y.L.); (C.T.); (L.B.); (W.W.); (Y.Z.); (S.L.); (H.S.); (S.T.); (R.A.D.)
| | - Zhanjiang Liu
- Department of Biology, College of Arts and Sciences, Syracuse University, Syracuse, NY 13244, USA; (D.G.); (Z.L.)
- Correspondence:
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