Identification of miRNAs Involved in Lipid Metabolism and Tuber Development in <i>Cyperus esculentus</i> L.
Tiger nut (<i>Cyperus esculentus</i> L.) is recognized for its high oil and oleic acid content in underground tubers. However, the molecular mechanisms governing growth, development, and fatty acid accumulation in these tubers are not well understood. This study employed gas chromatograp...
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2024-11-01
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| author | Yunfei Gao Le Wang Shanshan Cao Liangyu Chen Xueying Li Weixuan Cong Songnan Yang Jian Zhang Xiaojun Nie Jun Zhang |
| author_facet | Yunfei Gao Le Wang Shanshan Cao Liangyu Chen Xueying Li Weixuan Cong Songnan Yang Jian Zhang Xiaojun Nie Jun Zhang |
| author_sort | Yunfei Gao |
| collection | DOAJ |
| description | Tiger nut (<i>Cyperus esculentus</i> L.) is recognized for its high oil and oleic acid content in underground tubers. However, the molecular mechanisms governing growth, development, and fatty acid accumulation in these tubers are not well understood. This study employed gas chromatography–mass spectrometry (GC–MS) and small RNA sequencing on tiger nut tubers across five developmental stages. The findings indicate that the critical period for accumulating dry matter and oils, particularly oleic acid, occurs between 35 and 75 days after tuber formation. A total of 183 microRNAs (miRNAs) were identified, comprising 31 known and 152 novel miRNAs. Approximately half of these miRNAs (such as ces-miR156b-3p and ces-miR166a-3p) exhibited differential expression during and around the key periods of metabolite synthesis. The predicted target genes of these miRNAs were significantly enriched in glycerate 3-phosphate metabolism and cell growth processes. Furthermore, 13 miRNA–mRNA interaction modules related to oil accumulation and tuber growth were identified, and these target genes’ expression levels showed significant differences during the tuber developmental stages. These findings advance the understanding of the molecular mechanisms underlying tuber development and oil accumulation in tiger nut. |
| format | Article |
| id | doaj-art-eeedfb2b2a8c4468bf75c5b4d502e3e2 |
| institution | DOAJ |
| issn | 2223-7747 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Plants |
| spelling | doaj-art-eeedfb2b2a8c4468bf75c5b4d502e3e22025-08-20T02:50:40ZengMDPI AGPlants2223-77472024-11-011323330510.3390/plants13233305Identification of miRNAs Involved in Lipid Metabolism and Tuber Development in <i>Cyperus esculentus</i> L.Yunfei Gao0Le Wang1Shanshan Cao2Liangyu Chen3Xueying Li4Weixuan Cong5Songnan Yang6Jian Zhang7Xiaojun Nie8Jun Zhang9College of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Plant Science, Jilin University, Changchun 130062, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaState Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Xianyang 712100, ChinaCollege of Agronomy, Jilin Agricultural University, Changchun 130118, ChinaTiger nut (<i>Cyperus esculentus</i> L.) is recognized for its high oil and oleic acid content in underground tubers. However, the molecular mechanisms governing growth, development, and fatty acid accumulation in these tubers are not well understood. This study employed gas chromatography–mass spectrometry (GC–MS) and small RNA sequencing on tiger nut tubers across five developmental stages. The findings indicate that the critical period for accumulating dry matter and oils, particularly oleic acid, occurs between 35 and 75 days after tuber formation. A total of 183 microRNAs (miRNAs) were identified, comprising 31 known and 152 novel miRNAs. Approximately half of these miRNAs (such as ces-miR156b-3p and ces-miR166a-3p) exhibited differential expression during and around the key periods of metabolite synthesis. The predicted target genes of these miRNAs were significantly enriched in glycerate 3-phosphate metabolism and cell growth processes. Furthermore, 13 miRNA–mRNA interaction modules related to oil accumulation and tuber growth were identified, and these target genes’ expression levels showed significant differences during the tuber developmental stages. These findings advance the understanding of the molecular mechanisms underlying tuber development and oil accumulation in tiger nut.https://www.mdpi.com/2223-7747/13/23/3305<i>Cyperus esculentus</i>miRNAsGC-MSoil synthesistuber development |
| spellingShingle | Yunfei Gao Le Wang Shanshan Cao Liangyu Chen Xueying Li Weixuan Cong Songnan Yang Jian Zhang Xiaojun Nie Jun Zhang Identification of miRNAs Involved in Lipid Metabolism and Tuber Development in <i>Cyperus esculentus</i> L. Plants <i>Cyperus esculentus</i> miRNAs GC-MS oil synthesis tuber development |
| title | Identification of miRNAs Involved in Lipid Metabolism and Tuber Development in <i>Cyperus esculentus</i> L. |
| title_full | Identification of miRNAs Involved in Lipid Metabolism and Tuber Development in <i>Cyperus esculentus</i> L. |
| title_fullStr | Identification of miRNAs Involved in Lipid Metabolism and Tuber Development in <i>Cyperus esculentus</i> L. |
| title_full_unstemmed | Identification of miRNAs Involved in Lipid Metabolism and Tuber Development in <i>Cyperus esculentus</i> L. |
| title_short | Identification of miRNAs Involved in Lipid Metabolism and Tuber Development in <i>Cyperus esculentus</i> L. |
| title_sort | identification of mirnas involved in lipid metabolism and tuber development in i cyperus esculentus i l |
| topic | <i>Cyperus esculentus</i> miRNAs GC-MS oil synthesis tuber development |
| url | https://www.mdpi.com/2223-7747/13/23/3305 |
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