Open Access

ARTICLE

Identification of Genes Involved in Celastrol Biosynthesis by Comparative Transcriptome Analysis in Tripterygium wilfordii

by Yaru Zhu^1,2,3, Xiujun Zhang¹, Yansheng Zhang³, Shiyou Lü^1,4,*, Changfu Li^1,3,*

1 Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
2 University of Chinese Academy of Sciences, Beijing, 100049, China
3 Shanghai Key Laboratory of Bio-Energy Crops, Research Center for Natural Products, Plant Science Center, School of Life Sciences, Shanghai University, Shanghai, 200444, China
4 State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, China

(This article belongs to the Special Issue: Plant Omics in Challenging Environment)

Phyton-International Journal of Experimental Botany 2022, 91(2), 279-291. https://doi.org/10.32604/phyton.2022.017625

Received 25 May 2021; Accepted 07 July 2021; Issue published 26 September 2021

Abstract

Tripterygium wilfordii has been renowned mostly because of the anticancer effects of its root extracts, which is partly ascribed to the presence of celastrol, a pentacyclic triterpenoid, as one of the main active components. Celastrol also has recently been reported as an effective prodrug in the treatment of obesity. Despite the promising activities, the pathway leading to celastrol biosynthesis, especially cytochrome P450 (CYP) enzyme(s) that occur in its downstream steps, are largely unknown. This study conducted a comparative analysis of the T. wilfordii transcriptome derived from its root and leaf tissues. Differential gene expression analysis identified a number of root-specific CYP genes. Further phylogenetic analysis suggested specific family members of CYPs that may participate in the late steps during celastrol biosynthesis. Root-specific transcription factors (TFs) that may play regulatory roles in celastrol biosynthesis were also discussed. This genetic resource will aid in isolating the celastrol biosynthetic genes as well as engineering the celastrol biosynthesis pathway.

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Keywords

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