Identification and Characterization of Known and Novel MicroRNAs in Five Tissues of Wax Gourd (Benincasa hispida) Based on High-Throughput Sequencing

文献类型： 外文期刊

第一作者： Yan, Jinqiang

作者： Yan, Jinqiang;Wang, Min;Liu, Wenrui;Xie, Dasen;He, Xiaoming;Peng, Qingwu;Jiang, Biao;Yan, Jinqiang;Wang, Min;Liu, Wenrui;Xie, Dasen;He, Xiaoming;Jiang, Biao

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关键词： wax gourd; high-throughput sequencing; microRNAs; target genes

期刊名称：APPLIED SCIENCES-BASEL （ 影响因子：2.679； 五年影响因子：2.736 ）

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年卷期： 2021 年 11 卷 21 期

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收录情况： SCI

摘要： MicroRNAs (miRNAs) are endogenous single-stranded non-coding small RNAs of 20-24 nucleotides and play important roles in many plant biological and metabolic processes. Wax gourd is an important vegetable of Cucurbitacea family, with great economic and medicinal value. Although miRNAs have been extensively studied in model plant species, less is known in wax gourd (Benincasa hispida). In this study, in order to identify miRNAs in wax groud, five independent small RNA libraries were constructed using leaf, root, stem, flower, and fruit of B227. Based on high-throughput Illumina deep sequencing. In total, 422 known and 409 novel miRNAs were identified from five libraries. Comparative analysis revealed that many miRNAs were differentially expressed among different tissues, indicating tissue-specific expression of some miRNAs. qRT-PCR verified the reliability of small RNA sequencing results. Furthermore, miRNAs with similar expression patterns among five tissues were clustered into the same profile, among which many miRNAs were found with relatively high expression in the fruit of wax gourd. MiR164-x had the highest expression in fruit than in other tissues and many NAC transcription factors were predicted as its target genes. We propose that miR164 might regulate fruit development by forming miR164-NAC module in wax gourd. Taken together, this study provides the first global miRNAs profiling of wax gourd, and lays the foundation for understanding the regulatory roles of miRNAs in the growth and development processes of wax gourd.

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