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De Novo Transcriptome Assembly of Calotropis procera for Insights into the Natural Rubber Biosynthesis Pathway | ||
| Agrotechniques in Industrial Crops | ||
| مقاله 5، دوره 6، شماره 2، مهر 2026، صفحه 169-179 اصل مقاله (914.39 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22126/atic.2026.12119.1226 | ||
| نویسندگان | ||
| Fatemeh Ali-Askari* ؛ Manijeh Sabokdast؛ Mohammad Reza Naghavi | ||
| Department of Agronomy and Plant Breeding, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran | ||
| چکیده | ||
| Calotropis procera has been widely researched as a medicinal plant mainly due to its medicinal properties, including the presence of cardiac glycosides; However, less attention has been paid to its study as a source for natural rubber production. The biosynthesis of natural rubber occurs through the mevalonate (MVA) pathway in the cytoplasm and the methylerythritol phosphate (MEP) pathway in the plastids, with acetyl-CoA being converted to isopentenyl pyrophosphate (IPP), the building block of natural rubber. Given the lack of detailed information on the natural rubber biosynthesis pathway in this plant and the absence of an annotated genome sequence, research based on de novo transcriptome assembly is particularly crucial. In this study, the Trinity and rnaSPAdes tools were employed to assemble the de novo transcriptome of C. procera from the data set available in the SRA database. Following a comprehensive evaluation of the assembly’s quality, the transcriptome was annotated using the Hayai-Annotation Plants tool. Subsequently, pathways associated with natural rubber biosynthesis were reconstructed and mapped using the GhostKOALA and KEGG Mapper tools, with pathway visualizations created through the Color tool. According to the results, unigenes received putative annotations in three domains: biological processes, cellular components and molecular functions. Additionally, during the KEGG pathway reconstruction, 19 ortholog genes involved in the terpenoid backbone biosynthetic pathway were identified, including 7 ortholog genes related to the MVA pathway, 8 orthologs related to the MEP pathway, and 4 ortholog genes associated with the biosynthesis of C10-C20 isoprenoids. This study enhances our understanding of the natural rubber biosynthesis pathways in C. procera, providing a foundation for future research aimed at exploring its biotechnological applications. | ||
تازه های تحقیق | ||
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| کلیدواژهها | ||
| Gene annotation؛ KEGG pathway visualization؛ Latex؛ RNA-Seq analysis؛ Terpenoid | ||
| مراجع | ||
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