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Ding X, Zhang Y, Li D, Xu J, Wu C, Cui X, Sun Y. Comparative transcriptomic analysis of reproductive characteristics of reciprocal hybrid lineages derived from hybridization between Megalobrama amblycephala and Culter alburnus. BMC Genom Data 2023; 24:45. [PMID: 37573319 PMCID: PMC10422732 DOI: 10.1186/s12863-023-01141-6] [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: 05/08/2023] [Accepted: 07/21/2023] [Indexed: 08/14/2023] Open
Abstract
BACKGROUND Distant hybridization is an important breeding technique for creating new strains with superior traits by integrating two different genomes. Successful hybridization of Megalobrama amblycephala (Blunt snout bream, BSB, 2n = 48) and Culter alburnus (Topmouth culter, TC, 2n = 48) was achieved to establish hybrid lineages (BT and TB), which provide valuable materials for exploring the mechanisms of distant hybridization fertility. In this study, the gonadal tissue transcriptomes of BSB, TC, BT-F1, and TB-F1 were sequenced using Illumina high-throughput sequencing technology to analyze the reproductive characteristics of BT and TB. RESULTS Differential gene expression analysis showed that the differentially expressed genes in BT vs BSB and BT vs TC were mainly enriched in signaling pathways not directly associated with meiosis. While, the differentially expressed genes of TB vs BSB and TB vs TC were mainly enriched in pathways related to meiosis, and most of them were down-regulated, indicating that meiosis is suppressed in TB. Under-dominance (UD) genes were enriched in pathways related to meiosis and DNA repair in TB. Over-dominance (OD) genes were enriched in MAPK signaling pathway, expression level dominance-BSB (ELD-B) genes were enriched in pathways related to steroid hormone synthesis and expression level dominance-TC (ELD-T) genes were not significantly enriched in any pathway in both BT and TB. CONCLUSIONS These results suggest that meiotic progression may not be affected in BT, whereas it is clearly inhibited in TB. Offspring of M. amblycephala maternal parent may have better genomic compatibility and fertility. Our study provides important information on the molecular mechanisms of breaking reproductive isolation in distantly hybridized fertile lineages.
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Affiliation(s)
- Xue Ding
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Yifei Zhang
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Die Li
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Jia Xu
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China
| | - Chang Wu
- State Key Laboratory of Developmental Biology of Freshwater Fishes, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Xiaojuan Cui
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China.
| | - Yuandong Sun
- School of Life Science and Health, Hunan University of Science and Technology, Xiangtan, 411201, Hunan, China.
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Huang L, Hu H, Tao M, Wang Q, Li T, Yang X, Fan S, Zhao R, Wang S, Liu S. Elevated expression of inhibin α gene in sterile allotriploid crucian carp. Gen Comp Endocrinol 2021; 312:113856. [PMID: 34302847 DOI: 10.1016/j.ygcen.2021.113856] [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: 03/23/2021] [Revised: 06/22/2021] [Accepted: 07/14/2021] [Indexed: 11/24/2022]
Abstract
Inhibin and Activin, belong to the transforming growth factor β superfamily (TGF-β), which associate with the regulation of the reproductive process by the modulation of the hypothalamic-pituitary-gonad (HPG) axis. In this study, we reported the molecular cloning and tissue expression of inhibin α in allotriploid crucian carp and its parent- diploid red crucian carp. The full-length cDNA of inhibin α were respectively 1632 bp and 1642 bp in allotriploids and diploids, which both consisted of a 1044 bp open reading frame (ORF) encoding 347 amino acids. Real-time quantitative PCR (RT-qPCR) showed that allotriploids and diploids had significant expression of inhibin α in testis and ovary, and the expression of inhibin α in the gonads of allotriploids was higher than that of diploids. The immunohistochemistry indicated that the ovarian development of allotriploids was abnormal, and the expression of Inhibin α in the ovary of allotriploids was higher than that of diploids. Results of co-immunoprecitation (co-IP) demonstrated that the Inhibin α and Activin βA, Inhibin α and Activin βB can form dimers. These findings suggested that the elevated expression of inhibin α and the competitive binding of Inhibin α subunit with Activin β subunits in allotriploids may be releted to the sterility of allotriploids. Furthermore, these results will facilitate the investigation of reproduction characteristics in allotriploids and provide theoretical basis for the study of polyploid breeding in the future.
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Affiliation(s)
- Lu Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Hong Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Min Tao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Qiubei Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Ting Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Xiangqiong Yang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Siyu Fan
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Rurong Zhao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Shi Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China.
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, PR China.
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Integration of miRNA-mRNA co-expression network reveals potential regulation of miRNAs in hypothalamus from sterile triploid crucian carp. REPRODUCTION AND BREEDING 2021. [DOI: 10.1016/j.repbre.2021.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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4
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Li S, Zhou Y, Yang C, Fan S, Huang L, Zhou T, Wang Q, Zhao R, Tang C, Tao M, Liu S. Comparative analyses of hypothalamus transcriptomes reveal fertility-, growth-, and immune-related genes and signal pathways in different ploidy cyprinid fish. Genomics 2021; 113:595-605. [PMID: 33485949 DOI: 10.1016/j.ygeno.2021.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 01/12/2021] [Accepted: 01/18/2021] [Indexed: 12/23/2022]
Abstract
Triploid crucian carp (TCC) is obtained by hybridization of female diploid red crucian carp (Carassius auratus red var., RCC) and male allotetraploid hybrids. In this study, high-throughput sequencing was used to conduct the transcriptome analysis of the female hypothalamus of diploid RCC, diploid common carp (Cyprinus carpio L., CC) and TCC. The key functional expression genes of the hypothalamus were obtained through functional gene annotation and differential gene expression screening. A total of 71.56 G data and 47,572 genes were obtained through sequencing and genome mapping, respectively. The Fuzzy Analysis Clustering assigned the differentially expressed genes (DEGs) into eight groups, two of which, overdominance expression (6005, 12.62%) and underdominance expression (3849, 8.09%) in TCC were further studied. KEGG enrichment analysis showed that the DEGs in overdominance were mainly enriched in four pathways. The expression of several fertility-related genes was lower levels in TCC, whereas the expression of several growth-related genes and immune-related genes was higher levels in TCC. Besides, 15 DEGs were verified by quantitative real-time PCR (qPCR). The present study can provide a reference for breeding sterility, fast-growth, and disease-resistant varieties by distant hybridization.
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Affiliation(s)
- Shengnan Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Yi Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Conghui Yang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Siyu Fan
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Lu Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Tian Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Qiubei Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Rurong Zhao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Chenchen Tang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China
| | - Min Tao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China.
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, Hunan Normal University, Changsha 410081, Hunan, PR China.
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5
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Zhong H, Hu J, Zhou Y. Transcriptomic evidence of luteinizing hormone-releasing hormone agonist (LHRH-A) regulation on lipid metabolism in grass carp (Ctenopharyngodon idella). Genomics 2020; 113:1265-1271. [PMID: 32971214 DOI: 10.1016/j.ygeno.2020.09.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/08/2020] [Accepted: 09/20/2020] [Indexed: 11/24/2022]
Abstract
In this study, RNA sequencing was used to identify the hepatic gene expression profile in grass carp associated with luteinizing hormone-releasing hormone agonist (LHRH-A) treatment. A total of 93,912,172 reads were generated by HiSeq 4000 sequencing platform. After filtering, 83,450,860 clean reads were mapped to the reference genome. By calculating the FPKM of genes, 1475 differentially expressed genes were identified. PPAR signaling pathway was enriched with upregulated genes in LHRH-A injection group showing the regulation of the lipid metabolism by LHRH-A. The expression of eight key genes in PPAR signaling pathway was confirmed by qPCR and the results suggested that ACSL4A, ACSL4B, ANGPTL4, LPL, RXRBA and SLC27A1B were significantly stimulated by LHRH-A injection. This investigation provides the evidence that LHRH-A could play a role in lipid metabolism.
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Affiliation(s)
- Huan Zhong
- College of Animal Science and Technology, Hunan Agriculture University, Changsha 410128, China
| | - Jie Hu
- Key Laboratory of Tropical & Subtropical Fisheries Resource Application & Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510385, China.
| | - Yi Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha 410081, China; Life Science College, Hunan Normal University, Changsha 410081, China.
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6
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Tao M, Hu H, Huang L, Li S, Yuan L, Zhou T, Song C, Zhao R, Liu S. Differential expression of activin β A and β B genes in female allotriploid and diploid red crucian carp Carassius auratus red var. JOURNAL OF FISH BIOLOGY 2019; 95:1523-1529. [PMID: 31631336 DOI: 10.1111/jfb.14172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/18/2019] [Indexed: 06/10/2023]
Abstract
activin βA and βB from diploid and allotriploid crucian carp were cloned.The differential expression of activin βA and βB genes in female allotriploid and diploid red crucian carp Carassius auratus red var. were studied and found to be expressed in all the tested tissues; particularly, the expression of activin βA and βB was elevated in the ovaries of allotriploids and differential expression in pituitaries during the non-breeding season and the breeding season period. The immunohistochemistry indicated that the abnormal triploid ovaries were dominated by small oogonium-like cells with dense signals and that the elevated expression of activin βA and βB in the ovaries of allotriploids may be related to allotriploid sterility.
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Affiliation(s)
- Min Tao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Hong Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Lu Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Shengnan Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Liujiao Yuan
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Tian Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Can Song
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Rurong Zhao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
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7
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Establishment and application of distant hybridization technology in fish. SCIENCE CHINA-LIFE SCIENCES 2018; 62:22-45. [DOI: 10.1007/s11427-018-9408-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 09/19/2018] [Indexed: 12/11/2022]
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8
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Qin QB, Liu QW, Zhou YW, Wang CQ, Qin H, Zhao C, Liu SJ. Differential expression of HPG-axis genes in autotetraploids derived from red crucian carp Carassius auratus red var., ♀ × blunt snout bream Megalobrama amblycephala, ♂. JOURNAL OF FISH BIOLOGY 2018; 93:1082-1089. [PMID: 30260011 DOI: 10.1111/jfb.13818] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 09/22/2018] [Indexed: 06/08/2023]
Abstract
Autotetraploid fish (4n = 200, abbreviated as 4nRR), which reach sexual maturity at 1 year of age, were derived from the whole genome duplication of red crucian carp Carassius auratus red var. (RCC; 2n = 100) and possess four sets of chromosomes from RCC. The histological features of the gonads showed that the RCC and 4nRR both possessed normal gonadal structure and could arrive at maturation. To understand the expression characteristics of genes related to reproductive development in the autotetraploid fish, we analysed the nucleotide sequence and expression characteristics of the gnrh2, gthb and gthr genes, which are the pivotal genes of the hypothalamic-pituitary-gonadal (HPG) axis. We found that the gnrh2, gthb and gthr genes in 4nRR share remarkable homology with RCC, but there were obvious differences in expression levels between 4nRR and RCC. These results demonstrate that autotetraploidization can lead to gene expression changes. This study provides insights into the molecular mechanism underlying the reproductive development of autotetraploid fish and is expected to be of great significance for subsequent research on polyploidization.
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Affiliation(s)
- Qin B Qin
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Qi W Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yu W Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Chong Q Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Huan Qin
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Chun Zhao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Shao J Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, China
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Ren L, Tang C, Li W, Cui J, Tan X, Xiong Y, Chen J, Wang J, Xiao J, Zhou Y, Wang J, Tao M, Zhang C, Liu S. Determination of dosage compensation and comparison of gene expression in a triploid hybrid fish. BMC Genomics 2017; 18:38. [PMID: 28056785 PMCID: PMC5216571 DOI: 10.1186/s12864-016-3424-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 12/14/2016] [Indexed: 12/15/2022] Open
Abstract
Background Polyploidy and hybridization are both recognized as major forces in evolution. Most of our current knowledge about differences in gene regulation in polyploid hybrids comes from plant studies. The gene expression of diverged genomes and regulatory interactions are still unclear in lower vertebrates. Results We generated 229 million cleaned reads (42.23 Gbp) from triploid of maternal grass carp (Ctenopharyngodon idellus, Cyprininae, 2n = 48) × paternal blunt snout bream (Megalobrama amblycephala, Cultrinae, 2n = 48) and their diploid parents using next-generation sequencing. In total, 157,878 contigs were assembled and 15,444 genes were annotated. We examined gene expression level changes among the parents and their triploid offspring. The mechanisms of dosage compensation that reduced triploid expression levels to the diploid state were determined in triploid fish. In this situation, novel gene expression and gene silencing were observed. Then, we established a model to determine the extent and direction of expression level dominance (ELD) and homoeolog expression bias (HEB) based on the relative expression level among the parents and their triploid offspring. Conclusions Our results showed that the genome-wide ELD was biased toward maternal genome in triploid. Extensive alterations in homoeolog expression suggested a combination of regulatory and epigenetic interactions through the transcriptome network. Additionally, the expression patterns of growth genes provided insights into the relationship between the characteristics of growth and underlying mechanisms in triploids. Regulation patterns of triploid state suggest that various expression levels from the initial genomic merger have important roles in adaptation. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-3424-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Li Ren
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Chenchen Tang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Wuhui Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Jialin Cui
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Xingjun Tan
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Yafeng Xiong
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Jie Chen
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Jun Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Jun Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Yi Zhou
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Jing Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Min Tao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Chun Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, 410081, China.
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Homoeologue expression insights into the basis of growth heterosis at the intersection of ploidy and hybridity in Cyprinidae. Sci Rep 2016; 6:27040. [PMID: 27265401 PMCID: PMC4893626 DOI: 10.1038/srep27040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 05/12/2016] [Indexed: 11/09/2022] Open
Abstract
Hybridization and polyploidization are considered important driving forces that form new epigenetic regulations. To study the changing patterns of expression accompanying hybridization and polyploidization, we used RNA-seq and qRT-PCR to investigate global expression and homoeologue expression in diploid and tetraploid hybrids of Carassius auratus red var. (♀) (R) and Cyprinus carpio (♂) (C). By comparing the relative expression levels between the hybrids and their parents, we defined the expression level dominance (ELD) and homoeologue expression bias (HEB) in liver tissue. The results showed that polyploidization contributed to the conversion of homoeologue ELD. In addition, hybridization had more effect on the change in HEB than polyploidization, while polyploidization had more effect on the change of global gene expression than hybridization. Meanwhile, similar expression patterns were found in growth-related genes. The results suggested that hybridization and polyploidization result in differential degrees of maternal HEB in three tissues (liver, muscle and ovary) tested. The results of this study will increase our understanding of the underlying regulation mechanism of rapid growth in diploid hybrids and allotetraploids. The differential degrees of global expression and homoeologue expression contribute to growth heterosis in newly formed hybrids, ensuring the on-going success of allotetraploid speciation.
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11
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Yu F, Zhong H, Liu G, Liu S, Zhang Z, Zhou Y, Tao M, Liu Y. Characterization of vasa in the gonads of different ploidy fish. Gene 2015; 574:337-44. [DOI: 10.1016/j.gene.2015.08.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 08/10/2015] [Indexed: 12/20/2022]
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Zhou R, Wu Y, Tao M, Zhang C, Liu S. MicroRNA profiles reveal female allotetraploid hybrid fertility. BMC Genet 2015; 16:119. [PMID: 26466572 PMCID: PMC4607245 DOI: 10.1186/s12863-015-0276-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 10/06/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The bisexual fertile tetraploid fish is important in biological evolution. Tetraploid fish fertility is the key factor for stable inheritance. Therefore, elucidating tetraploid fish fertility at the molecular level is essential. MicroRNAs regulate gene expression and are involved in many aspects of gonad development. METHODS Total RNA was isolated using TRIzol, followed by constructing small RNA libraries. And then, the qualified libraries were sequenced with the HiSeq 2500 SE50 system. The obtained clean reads were analyzed to identify conserved and novel miRNAs, and evaluate the expression, and also predict the target genes. The differential expressions of miRNAs were confirmed by RT-PCR. RESULTS In this study, allotetraploid hybrid fish (4nAT) and diploid red crucian carp (RCC) ovaries were used to compare miRNA profiles. The results indicated that most of the highly expressed miRNAs were closely correlated with ovary maturation, and displayed no significant differences in expression. Moreover, 34 up-regulated and nine down-regulated miRNAs were found in 4nAT. The differentially expressed miRNAs were primarily involved in metabolism, defense mechanisms, and cytoskeleton production. CONCLUSIONS This is the first study to provide new epigenetic evidences for tetraploid fish fertility and phenotypic changes as a result of increased ploidy.
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Affiliation(s)
- Rong Zhou
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, 410081, People's Republic of China.
| | - Yanhong Wu
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, 410081, People's Republic of China.
| | - Min Tao
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, 410081, People's Republic of China.
| | - Chun Zhang
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, 410081, People's Republic of China.
| | - Shaojun Liu
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, 410081, People's Republic of China.
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13
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Zhou Y, Zhong H, Liu S, Yu F, Hu J, Zhang C, Tao M, Liu Y. Elevated expression of Piwi and piRNAs in ovaries of triploid crucian carp. Mol Cell Endocrinol 2014; 383:1-9. [PMID: 24316377 DOI: 10.1016/j.mce.2013.11.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Revised: 10/19/2013] [Accepted: 11/28/2013] [Indexed: 11/29/2022]
Abstract
Increasing piRNAs provide RNA-interference pathways to regulate transposons and gene expression in germline cells. We demonstrate that Piwi transcripts are exclusively expressed in adult testes and ovaries in teleosts, with triploids showing the highest Piwi expression in the ovaries. Studies in vivo and in vitro showed that hCG and E2 treatment suppressed Piwi expression. We further cloned 200 small RNAs in the three kinds of fish. Seven piRNAs were obtained from all the three different ploidy fishes. During ovulation, five piRNAs showed significantly higher expression in the ovaries of sterile triploids than fertile diploids and tetraploids. Furthermore, E2 suppressed the expression of the six piRNAs at different levels in vivo and in vitro. The present study bridges the gap between the HPG axis and Piwi-piRNA pathway by suggesting that a dysfunctional HPG axis abrogated the piRNA suppression in triploid fish.
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Affiliation(s)
- Yi Zhou
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Huan Zhong
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Shaojun Liu
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha 410081, China.
| | - Fan Yu
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Jie Hu
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Chun Zhang
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Min Tao
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Yun Liu
- Key Laboratory of Protein Chemistry and Developmental Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha 410081, China
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14
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Espinosa E, Josa A, Gil L, Malo C, Mitjana O. Comparing Sex Steroid Levels During the Annual Cycles of Rainbow Trout (Oncorhynchus mykiss) Diploid Female (XX) and Triploid Female (XXX) Genotypic Sex. Reprod Domest Anim 2012; 48:149-55. [DOI: 10.1111/j.1439-0531.2012.02117.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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15
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Levy G, Degani G. Involvement of GnRH, PACAP and PRP in the reproduction of blue gourami females (Trichogaster trichopterus). J Mol Neurosci 2012; 48:603-16. [PMID: 22399226 DOI: 10.1007/s12031-012-9730-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Accepted: 02/16/2012] [Indexed: 12/11/2022]
Abstract
In vertebrates, gonadotropin-releasing hormone (GnRH) and pituitary adenylate cyclase-activating polypeptide (PACAP) are key hormones regulating growth and reproduction in the brain-pituitary axis. The regulating hormonal interactions are of great interest, therefore, the aim of this study is to provide novel insights into the involvement of brain GnRH and PACAP in oogensis and spermatogenesis in a fish model, the blue gourami (Trichogaster trichopterus). cDNA cloning of two GnRH forms combined with phylogenetic analysis revealed that three paralogous GnRH forms exist in blue gourami and evolve as a result of genome duplication. GnRH1 mRNA levels are related to final oocyte maturation (FOM), and this peptide stimulated β follicle-stimulating hormone (βFSH) and growth hormone (GH) gene expression; GnRH2 stimulated β gonadotropins (GtH) gene expression and GnRH analog combined with PACAP-38 synergistically upregulate GH and βFSH gene expression. The data presented, together with previous studies in our lab, enable suggesting mechanisms explaining the physiological relevance of these peptides in the regulation of gametogenesis and steroidogenesis in blue gourami females. These findings support the biological importance of the GnRH and PACAP hormones family, enabling them to stimulate differential biological functions in the regulation of growth and reproduction.
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Affiliation(s)
- Gal Levy
- School of Science and Technology, Tel-Hai College, Upper Galilee 12210, Israel
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16
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Yu F, Xiao J, Liang X, Liu S, Zhou G, Luo K, Liu Y, Hu W, Wang Y, Zhu Z. Rapid growth and sterility of growth hormone gene transgenic triploid carp. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s11434-011-4446-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Distant hybridization leads to different ploidy fishes. SCIENCE CHINA-LIFE SCIENCES 2010; 53:416-25. [DOI: 10.1007/s11427-010-0057-9] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2009] [Accepted: 10/30/2009] [Indexed: 10/19/2022]
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