Digital RNA-seq transcriptome plus tissue anatomy analyses reveal the developmental mechanism of the calabash-shaped root in Tetrastigma hemsleyanum
| Autor: | Chenjing He, Shuying Bao, Leizhen Wang, Xu Zhengxian, Taihe Xiang, Fazong Long, Jiangshan Li |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine animal structures Physiology RNA-Seq Plant Science Biology Plant Roots 01 natural sciences Transcriptome 03 medical and health sciences Gene Expression Regulation Plant otorhinolaryngologic diseases Cellular chemical homeostasis Gene Plasma membrane part Gene Expression Profiling fungi Vascular bundle WRKY protein domain Cell biology 030104 developmental biology Vitaceae Membrane part 010606 plant biology & botany |
| Zdroj: | Tree Physiology. 41:1729-1748 |
| ISSN: | 1758-4469 |
| DOI: | 10.1093/treephys/tpab024 |
| Popis: | Tetrastigma hemsleyanum Diels & Gilg ex Diels is a liana plant with promising medicinal and ornamental values. Its calabash-shaped roots (CRs) are served as a traditional Chinese herb. However, it takes a long growth period to form CRs. In this study, three types of architectural roots, including fibrous roots (FRs), bar-shaped roots (BRs) and CRs, were employed as materials, and the characteristics of histo-anatomy and digital RNA-seq transcriptome profiles were analyzed. Among the three types of roots, the vascular bundles in FRs were intact, while some of the vascular bundles degenerated in BRs, and only few traces of vascular bundles existed in CRs. Meanwhile, no obvious cell inclusions were found in the cytoplasm of FRs, while a few inclusions were found in BRs, and abundant inclusions were detected in CRs, which might be the main source of medicinal components in roots. The transcriptome profiles and qRT-PCR validation indicated that seven upregulated genes, encoding xyloglucan glycosyltransferase, ACC oxidase, CYP711A1, SHORT-ROOT transcript factor, galacturonosyltransferas, WAT1 and WRKY, and two downregulated genes, encoding LRR receptor-like serine/threonine-protein kinase and CYP83B1, were probably involved in the formation and development of CRs. In addition, Gene Ontology terms of intrinsic component of membrane, integral component of membrane, cell periphery, membrane part, plasma membrane, membrane, intrinsic component of plasma membrane, cellular chemical homeostasis and plasma membrane part were probably related to the formation of CRs. Kyoto Encyclopedia of Genes and Genomes pathways related to the development of CRs probably included MAPK signaling pathway–plant, plant hormone signal transduction and circadian rhythm–plant. Our finding suggested a probable mode for the formation of CRs. |
| Databáze: | OpenAIRE |
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