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Testicular miRNAs and tsRNAs provide insight into gene regulation during overwintering and reproduction of Onychostoma macrolepis

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Abstract

The late overwintering period and breeding period are two important developmental stages of testis in Onychostoma macrolepis. Small non-coding RNAs (sncRNAs) are well-known regulators of biological processes associated with numerous biological processes. This study aimed to elucidate the roles of four sncRNA classes (microRNAs [miRNAs], Piwi-interacting RNAs [piRNAs], tRNA-derived small RNAs [tsRNAs], and rRNA-derived small RNAs [rsRNAs]) across testes in the late overwintering period (in March) and breeding period (in June) by high-throughput sequencing. The testis of O. macrolepis displayed the highest levels of piRNAs and lowest levels of rsRNAs. Compared with miRNAs and tsRNAs in June, tsRNAs in March had a higher abundance, while miRNAs in March had a much lower abundance. Bioinformatics analysis identified 1,362 and 1,340 differentially expressed miRNAs and tsRNAs, respectively. Further analysis showed that miR-200–1, miR-143–1, tRFi-Lys-CTT-1, and tRFi-Glu-CTC-1 could play critical roles during the overwintering and breeding periods. Our findings provided an unprecedented insight to reveal the epigenetic mechanism underlying the overwintering and reproduction process of male O. macrolepis.

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Data availability

All data generated or analyzed during this study are included in this published article [and its supplementary information files].

Abbreviations

sncRNA:

Small non-coding RNA

miRNA:

MicroRNA

piRNA:

Piwi-interacting RNA

tsRNA:

TRNA-derived small RNA

rsRNA:

RRNA-derived small RNA

O. macrolepis :

Onychostoma macrolepis

tRF:

TRNA-derived fragment

rRF:

RRNA-derived fragment

GO:

Gene Ontology

KEGG:

Kyoto Encyclopedia of Genes and Genomes

RT-qPCR:

Reverse transcription‑quantitative polymerase chain reaction

HE:

Hematoxylin–eosin

RNA-seq:

RNA sequencing

RPM:

Reads per million

FDR:

False discovery rate

FC:

Fold change

padj:

Adjusted P value

UTR:

Untranslated region

Unanno:

Unannotated

MG:

Match genome

UMG:

Unmatch genome

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Acknowledgements

Not applicable.

Funding

This work is supported by the research and development program of China Se-enriched industry research institute, Program No. 2021FXZX04-01.

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Authors

Contributions

GFP and WZD designed the research; CZ, QFS, and JCL conducted the research; GFP, YNC, and YJG analyzed the data; GFP and FXY wrote the manuscript; CZ, HJ, and WZD revised the manuscript. All authors read and approved the final manuscript.

Corresponding authors

Correspondence to Fangxia Yang or Wuzi Dong.

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All procedures used in this study were performed in accordance with the Guide for Care and Use of Laboratory Animals and approved by the Northwest A & F University Institutional Animal Care and Use Committee.

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Not applicable.

Competing interests

The authors declare no conflicts of interest.

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Peng, G., Zhu, C., Sun, Q. et al. Testicular miRNAs and tsRNAs provide insight into gene regulation during overwintering and reproduction of Onychostoma macrolepis. Fish Physiol Biochem 48, 481–499 (2022). https://doi.org/10.1007/s10695-022-01078-0

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  • DOI: https://doi.org/10.1007/s10695-022-01078-0

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