miR-199-5p regulates spermiogenesis at the posttranscriptional level via targeting Tekt1 in allotriploid crucian carp
Abstract Background Sperm abnormalities are one of the primary factors leading to male sterility, but their pathogenesis is still unclear. Although miRNAs are suggested to exert important roles in the regulation of spermatogenesis at both transcriptional and posttranscriptional levels, little is currently known regarding the regulation of sperm flagella assembly by microRNAs (miRNAs). The role of miRNAs in the development of sperm abnormalities in sterile triploid fish has not been studied. Results In this study, we found that miR-199-5p was widely expressed in all detected tissues of different-ploidy crucian carp. As one of the testis-specific candidate markers, Tekt1 was predominantly expressed in the testis. Quantitative real-time PCR (qRT-PCR) analyses showed that the expression trend of miR-199-5p was exactly opposite to that of Tekt1. Through bioinformatics analysis, we identified a putative miR-199-5p binding site in the Tekt1 mRNA. We further identified Tekt1 as a target of miR-199-5p using luciferase reporter assay. Finally, we confirmed that miR-199-5p was necessary for sperm flagellar assembly and spermatogenesis in vivo via intraperitoneal injection of miR-199-5p antagomir or agomir in diploid red crucian carp. Moreover, miR-199-5p gain-of-function could lead to spermatids apoptosis and abnormal spermatozoa structure, which is similar to that of allotriploid crucian carp. Conclusions Our studies suggested that abnormally elevated miR-199-5p inhibited the sperm flagella formation in spermiogenesis by negatively regulating the expression of Tekt1, thereby causing sperm abnormalities of male allotriploid crucian carp..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:13 |
|---|---|
| Enthalten in: |
Journal of Animal Science and Biotechnology - 13(2022), 1, Seite 13 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Shengnan Li [VerfasserIn] |
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| Links: |
doi.org [kostenfrei] |
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| Themen: |
Allotriploid crucian carp |
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| doi: |
10.1186/s40104-022-00693-4 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
DOAJ029793904 |
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| 520 | |a Abstract Background Sperm abnormalities are one of the primary factors leading to male sterility, but their pathogenesis is still unclear. Although miRNAs are suggested to exert important roles in the regulation of spermatogenesis at both transcriptional and posttranscriptional levels, little is currently known regarding the regulation of sperm flagella assembly by microRNAs (miRNAs). The role of miRNAs in the development of sperm abnormalities in sterile triploid fish has not been studied. Results In this study, we found that miR-199-5p was widely expressed in all detected tissues of different-ploidy crucian carp. As one of the testis-specific candidate markers, Tekt1 was predominantly expressed in the testis. Quantitative real-time PCR (qRT-PCR) analyses showed that the expression trend of miR-199-5p was exactly opposite to that of Tekt1. Through bioinformatics analysis, we identified a putative miR-199-5p binding site in the Tekt1 mRNA. We further identified Tekt1 as a target of miR-199-5p using luciferase reporter assay. Finally, we confirmed that miR-199-5p was necessary for sperm flagellar assembly and spermatogenesis in vivo via intraperitoneal injection of miR-199-5p antagomir or agomir in diploid red crucian carp. Moreover, miR-199-5p gain-of-function could lead to spermatids apoptosis and abnormal spermatozoa structure, which is similar to that of allotriploid crucian carp. Conclusions Our studies suggested that abnormally elevated miR-199-5p inhibited the sperm flagella formation in spermiogenesis by negatively regulating the expression of Tekt1, thereby causing sperm abnormalities of male allotriploid crucian carp. | ||
| 650 | 4 | |a Allotriploid crucian carp | |
| 650 | 4 | |a miR-199-5p | |
| 650 | 4 | |a Sperm abnormalities | |
| 650 | 4 | |a Sperm flagella | |
| 650 | 4 | |a Spermiogenesis | |
| 650 | 4 | |a Tekt1 | |
| 653 | 0 | |a Animal culture | |
| 653 | 0 | |a Veterinary medicine | |
| 700 | 0 | |a Qiubei Wang |e verfasserin |4 aut | |
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| 700 | 0 | |a Siyu Fan |e verfasserin |4 aut | |
| 700 | 0 | |a Ting Li |e verfasserin |4 aut | |
| 700 | 0 | |a Yuqing Shu |e verfasserin |4 aut | |
| 700 | 0 | |a Chun Zhang |e verfasserin |4 aut | |
| 700 | 0 | |a Yi Zhou |e verfasserin |4 aut | |
| 700 | 0 | |a Qingfeng Liu |e verfasserin |4 aut | |
| 700 | 0 | |a Kaikun Luo |e verfasserin |4 aut | |
| 700 | 0 | |a Min Tao |e verfasserin |4 aut | |
| 700 | 0 | |a Shaojun Liu |e verfasserin |4 aut | |
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