Expression profiles of dmrts and foxls during gonadal development and sex reversal induced by 17α-methyltestosterone in the orange-spotted grouper

2019 ◽  
Vol 274 ◽  
pp. 26-36 ◽  
Author(s):  
Qingji Lyu ◽  
Juan Hu ◽  
XianKuan Yang ◽  
XiaoChun Liu ◽  
YiBin Chen ◽  
...  
Keyword(s):  
Expression Profiles ◽  
Gonadal Development ◽  
Sex Reversal

scholarly journals Comprehensive analysis of miRNA-mRNA/lncRNA during gonadal development of triploid female rainbow trout (Oncorhynchus mykiss)

2020 ◽  
Author(s):  
Tianqing Huang ◽  
Wei Gu ◽  
Enhui Liu ◽  
Xiulan Shi ◽  
Bingqian Wang ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
High Throughput Sequencing ◽  
Developmental Stages ◽  
Expression Profiles ◽  
Noncoding Rnas ◽  
Gonadal Development ◽  
Differentially Expressed ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Oocyte Meiosis ◽  
Non Coding Rna

Abstract Background: Chromosomal ploidy manipulation is one of the means to create excellent germplasm. Triploid fish could provide an ideal sterile model for the mechanism research of abnormality in meiosis. The complete understanding of the coding and noncoding RNAs regulating sterility caused by meiosis abnormality is still not well understood.Results: By high-throughput sequencing, we compared the expression profiles of gonadal mRNA, long non-coding RNA (lncRNA), and microRNA (miRNA) at different developmental stages [65 days post fertilisation (dpf), 180 dpf, and 600 dpf] between the diploid (XX) and triploid (XXX) female rainbow trout. A majority of differentially expressed (DE) RNAs were identified, and 22 DE mRNAs related to oocyte meiosis and homologous recombination were characterized. The predicted miRNA-mRNA/lncRNA networks of 3 developmental stages were constructed based on the target pairs of DE lncRNA-miRNA and DE mRNA-miRNA. According to the networks, meiosis-related gene of ccne1 was targeted by dre-miR-15a-5p_R+1, and 6 targeted DE lncRNAs were identified. Also, RT-qPCR was performed to validate the credibility of the network.Conclusions: This study explored the potential interplay between coding and noncoding RNAs during the gonadal development of polyploid fish. It provides full insights into polyploidy-associated effects on fertility of fish. These differentially expressed coding and noncoding RNAs provide a novel resource for studying genome diversity of polyploid induction.

Expression profiles of metamorphosis-related genes during natural transformations in tadpoles of wild Wood Frogs (Lithobates sylvaticus)

2012 ◽  
Vol 90 (9) ◽  
pp. 1059-1071 ◽  
Author(s):  
Laia Navarro-Martín ◽  
Chantal Lanctôt ◽  
Christopher Edge ◽  
Jeff Houlahan ◽  
Vance L. Trudeau
Keyword(s):  
Gene Expression ◽  
Expression Profiles ◽  
Rana Sylvatica ◽  
Fold Increase ◽  
Gonadal Development ◽  
Specific Expression ◽  
Wood Frogs ◽  
Lithobates Sylvaticus ◽  
Expression Levels ◽  
Gene Expression Levels

Numerous studies using laboratory-reared tadpoles have shown the importance of thyroid hormones (TH), thyroid receptors (TR), and deiodinase (Dio) enzymes during anuran metamorphosis. Our study focuses on the analysis of thyroid-related genes in tadpoles of wild Wood Frogs ( Lithobates sylvaticus (LeConte, 1825); also known as Rana sylvatica (Cope, 1889)) during metamorphosis. Results showed that, in concordance with laboratory-reared studies, thyroid receptor beta (trb) gene expression profiles presented the most marked changes. At climax and compared with premetamorphic stages, brains, tails, and gonad–mesonephros complex (GMC) tissues increased trb expression levels 5-, 21-, and 41-fold, respectively (p < 0.05). In addition, gene expression levels of brain deiodinase type II and III showed opposite trends, where 3-fold decrease and 10-fold increase were, respectively, found. This finding supports the idea that thyroid hormone, as it has been demonstrated in laboratory-reared tadpoles, is also involved in natural metamorphosis in wild tadpoles. Interestingly, and contrary to our predictions, we observed that whole brain corticotropin-releasing factor (crf) and crf receptor 1 (crfr1) gene expression levels significantly decrease through metamorphosis in wild L. sylvaticus tadpoles. Further analyses are required to determine if a role of TH in the timing of anuran gonadal development exists, as well as the importance of cell-specific and tissue-specific expression of crf and crfr1 to metamorphosis.

Cotreatment of IGF1 and Fadrozole Upregulates the Expression of RSPO1, SOX9, and AMH in Chicken Embryos

2018 ◽  
Vol 206 (4-5) ◽  
pp. 218-228 ◽  
Author(s):  
Ahmadreza Rahaie ◽  
Majid Toghyani ◽  
Shahin Eghbalsaied
Keyword(s):  
Embryonic Development ◽  
Expression Profiles ◽  
Gene Expression Profiles ◽  
Sex Reversal ◽  
Control Group ◽  
In Ovo ◽  
Chicken Embryos ◽  
Sham Injection ◽  
Developmental Factors ◽  
Male Sex

Insulin-like growth factor-1 (IGF1) and anti-aromatase synergistically increase the rate and stability of female-to-male sex reversal as well as pre- and postnatal weight gains in hatched chickens. This study aimed at assessing gene expression profiles of chicken embryos treated with IGF1 and fadrozole. Day 3.5 fertile eggs were in ovo injected with one of IGF1, fadrozole anti-aromatase, combined IGF1 and fadrozole, or sham injection. The expression profile was studied on day 6 and day 11 of the embryonic development following gonadal differentiation. On day 6 of embryonic development, simultaneous injection of IGF1 and fadrozole significantly upregulated the expression of RSPO1, AMH, and SOX9 in genetically female embryos compared to single injections and control groups. Also, a higher expression of ESR1 and BMP4 was observed in genetically male embryos on day 6 compared to the control group. In day 11 embryos, a higher expression of BMP4 was detected in both males and females of the IGF1 and fadrozole-administered group compared to the sham injection cohort. In conclusion, the results of this study indicate that combined effects of IGF1 and fadrozole induce female-to-male sex reversal by increasing the expression of testis developmental factors rather than attenuating ovary developmental factors.

scholarly journals Transdifferentiation of Differentiated Ovary into Functional Testis by Long-Term Treatment of Aromatase Inhibitor in Nile Tilapia

Endocrinology ◽  
2014 ◽  
Vol 155 (4) ◽  
pp. 1476-1488 ◽  
Author(s):  
Li-Na Sun ◽  
Xiao-Long Jiang ◽  
Qing-Ping Xie ◽  
Jing Yuan ◽  
Bao-Feng Huang ◽  
...  
Keyword(s):  
Aromatase Inhibitor ◽  
Sertoli Cells ◽  
Nile Tilapia ◽  
Expression Profiles ◽  
Sex Reversal ◽  
Term Treatment ◽  
Germline Stem Cell ◽  
Long Term Treatment ◽  
17Β Estradiol

Females with differentiated ovary of a gonochoristic fish, Nile tilapia, were masculinized by long-term treatment with an aromatase inhibitor (Fadrozole) in the present study. The reversed gonads developed into functional testes with fertile sperm. The longer the fish experienced sex differentiation, the longer treatment time was needed for successful sex reversal. Furthermore, Fadrozole-induced sex reversal, designated as secondary sex reversal (SSR), was successfully rescued by supplement of exogenous 17β-estradiol. Gonadal histology, immunohistochemistry, transcriptome, and serum steroid level were analyzed during SSR. The results indicated that spermatogonia were transformed from oogonia or germline stem cell-like cells distributed in germinal epithelium, whereas Leydig and Sertoli cells probably came from the interstitial cells and granulosa cells of the ovarian tissue, respectively. The transdifferentiation of somatic cells, as indicated by the appearance of doublesex- and Mab-3-related transcription factor 1 (pre-Sertoli cells) and cytochrome P450, family 11, subfamily B, polypeptide 2 (pre-Leydig cells)-positive cells in the ovary, provided microniche for the transdifferentiation of germ cells. Decrease of serum 17β-estradiol was detected earlier than increase of serum 11-ketotestosterone, indicating that decrease of estrogen was the cause, whereas increase of androgen was the consequence of SSR. The sex-reversed gonad displayed more similarity in morphology and histology with a testis, whereas the global gene expression profiles remained closer to the female control. Detailed analysis indicated that transdifferentiation was driven by suppression of female pathway genes and activation of male pathway genes. In short, SSR provides a good model for study of sex reversal in teleosts and for understanding of sex determination and differentiation in nonmammalian vertebrates.

scholarly journals Comprehensive Analysis of miRNA-mRNA/lncRNA During Gonadal Development of Triploid Rainbow Trout (Oncorhynchus mykiss)

2020 ◽  
Author(s):  
Tianqing Huang ◽  
Wei Gu ◽  
Enhui Liu ◽  
Xiulan Shi ◽  
Bingqian Wang ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
High Throughput Sequencing ◽  
Developmental Stages ◽  
Expression Profiles ◽  
Biological Evolution ◽  
Gonadal Development ◽  
Reference Sequence ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Non Coding Rna ◽  
Long Non Coding Rna

Abstract Background: Polyploidy is an important force to improve biological evolution. Chromosomal ploidy manipulation is one of the means to create excellent germplasm. It has an important significance to understand the effect of genome duplication on fertility in polyploidy breeding. In this study, coding and non-coding RNAs involved in gonadal development were characterized, and their relationships were explored. Results: By high-throughput sequencing, we compared the expression profiles of gonadal mRNA, long non-coding RNA (lncRNA), and microRNA (miRNA) at different developmental stages [65 days post fertilisation (dpf), 180 dpf, and 600 dpf] between the diploid (XX) and triploid (XXX) rainbow trout. A majority of differentially expressed (DE) RNAs was screened. The overlapped DE mRNAs of three stages were functionally annotated by Gene Ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway analysis. According to the overlapped miRNAs, the predicted miRNA-mRNA/lncRNA network was constructed based on the target pairs of lncRNA-miRNA and mRNA-miRNA. Also, RT-qPCR was performed to validate the credibility of the network. Conclusions: Lots of lncRNAs involved in fertility were characterised by this network, which provided a reference sequence for further research. In summary, this study explored the potential interplay between coding and noncoding RNAs during the gonadal development of polyploid fish and elaborated the effect of triploidization on fertility.

scholarly journals PENGARUH RANGSANGAN HORMON AROMATASE INHIBITOR DAN OODEV TERHADAP PERUBAHAN KELAMIN DAN PERKEMBANGAN GONAD IKAN KERAPU SUNU, Plectropomus leopardus

2018 ◽  
Vol 12 (4) ◽  
pp. 325 ◽  
Author(s):  
Hirmawan Tirta Yudha ◽  
Agus Oman Sudrajat ◽  
Haryanti Haryanti
Keyword(s):  
Aromatase Inhibitor ◽  
Target Genes ◽  
Hormonal Treatment ◽  
Gonadal Development ◽  
Sex Reversal ◽  
Average Weight ◽  
Gonadal Maturation ◽  
Coral Trout ◽  
Hormonal Manipulation ◽  
Plectropomus Leopardus

Permasalahan utama yang dihadapi dalam penyediaan calon induk ikan kerapu sunu Plectropomus leopardus hasil budidaya yang bersifat hermaprodit sekuensial adalah keterlambatan dalam perkembangan gonad dan perubahan gonad dari betina menjadi jantan. Manipulasi hormonal merupakan cara yang paling efektif dan efisien dalam memacu perkembangan reproduksi dan pematangan gonad. Tujuan dari penelitian ini adalah untuk mendapatkan dosis hormon aromatase inhibitor dan oodev yang tepat untuk memacu perubahan kelamin dan perkembangan gonad ikan kerapu sunu. Ikan uji yang digunakan sebanyak 35 ekor F-1 dengan bobot rerata 2,3 ± 0,28 kg. Penelitian dilakukan selama dua bulan. Induksi hormon dilakukan melalui penyuntikan setiap dua minggu sekali dengan empat dosis aromatase inhibitor dan oodev yang berbeda; A (aromatase inhibitor 1 mg kg-1 ikan), O (oodev 1 mL kg-1 ikan), AO1 (aromatase inhibitor 0,1 mg kg-1 ikan + oodev 1 mL kg-1 ikan), AO2 (aromatase inhibitor 1 mg kg-1 ikan + oodev 1 mL kg-1 ikan), dan K (plasebo). Hasil penelitian menunjukkan bahwa kombinasi aromatase inhibitor 1 mg kg-1 ikan dan oodev 1 mL kg-1 ikan efektif untuk merangsang perubahan kelamin. Perlakuan tersebut dapat meningkatkan konsentrasi testosteron dalam darah (2,819 ng/mL) setelah delapan minggu pemeliharaan. Berdasarkan hasil histologi gonad dan observasi terhadap ekspresi gen terkait reproduksi menggunakan gen target DMRT1 dan SOX3 menunjukkan bahwa perlakuan hormon AO2 (Aromatase inhibitor 1 mg kg-1 ikan + oodev 1 mL kg-1 ikan) terbukti dapat memacu perubahan kelamin dari betina menjadi jantan dan kematangan gonad pada ikan kerapu sunu Plectropomus leopardus.The main problems faced in providing prospective broodstock of protogynous hermaphrodite coral trout grouper Plectropomus leopardus are lateness of gonadal development and gonadal sex reversal from female to male. Hormonal manipulation is the most effective way to induce reproductive development and gonadal maturation. The present study aimed to determine an effective dose of aromatase inhibitor and oodev on sex reversal and gonadal development of coral trout grouper. There were 35 F-1 fish with an average weight of 2.3 ± 0.28 kg. This research was conducted for two months. The fish were injected with four different dosages of aromatase inhibitor and oodev every two weeks: A (aromatase inhibitor 1 mg kg-1 fish), O (1 mL oodev), AO1 (aromatase inhibitor 0.1 mg kg-1 fish + oodev 1 mL kg-1 fish), AO2 (aromatase inhibitor 1 mg kg-1 fish + oodev 1 mL kg-1 fish), and K (placebo). The results showed that the combination of aromatase inhibitor 1 mg kg-1 fish and oodev 1 mL kg-1 fish was effective to induce the sex change. It could increase the concentration of testosterone in the blood (2.819 ng/mL) after eight weeks of culture. Based on the results of gonadal histology and reproductive-related genes expression observations using DMRT1 and SOX3 target genes, the hormonal treatment of AO2 (aromatase inhibitor 1 mg kg-1 fish + oodev 1 mL kg-1 fish) was able to accelerate sex reversal from female to male and gonadal maturation in coral trout grouper Plectropomus leopardus.

scholarly journals TET2 catalyzes active DNA demethylation of the Sry promoter and enhances its expression

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Naoki Okashita ◽  
Shunsuke Kuroki ◽  
Ryo Maeda ◽  
Makoto Tachibana
Keyword(s):  
Sex Determination ◽  
Gonadal Development ◽  
Sex Reversal ◽  
Dna Demethylation ◽  
Active Dna Demethylation ◽  
Specific Manner ◽  
Male Sex ◽  
Male To Female ◽  
Deficient Mice

Abstract SRY is the master regulator of male sex determination in eutherian mammals. In mice, Sry expression is transcriptionally and epigenetically controlled in a developmental stage-specific manner. The Sry promoter undergoes demethylation in embryonic gonadal somatic cells at the sex-determining period. However, its molecular mechanism and in vivo significance remain unclear. Here, we report that the Sry promoter is actively demethylated during gonadal development, and TET2 plays a fundamental role in Sry demethylation. Tet2-deficient mice showed absence of 5-hydroxymethylcytosine in the Sry promoter. Furthermore, Tet2 deficiency diminished Sry expression, indicating that TET2-mediated DNA demethylation regulates Sry expression positively. We previously showed that the deficiency of the H3K9 demethylase Jmjd1a compromises Sry expression and induces male-to-female sex reversal. Tet2 deficiency enhanced the sex reversal phenotype of Jmjd1a-deficient mice. Thus, TET2-mediated active DNA demethylation and JMJD1A-mediated H3K9 demethylation contribute synergistically to sex determination.

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