Genome-Wide Identification of the Geranylgeranyl Pyrophosphate Synthase (GGPS) Gene Family Associated with Natural Rubber Synthesis in L. Rodin

Overview

Journal Plants (Basel)

Date 2024 Oct 16

PMID 39409658

Authors

Lili Wang

Huan He

Jiayin Wang

Zhuang Meng

Lei Wang

Xiang Jin

Jianhang Zhang

Pingping Du

Liyu Zhang

Fei Wang

Hongbin Li

Quanliang Xie

Affiliations

Soon will be listed here.

Abstract

Rodin (TKS) is a recognized alternative source of natural rubber comparable to the rubber tree. The geranylgeranyl pyrophosphate synthase (GGPS) catalyzed the synthesis of geranylgeranyl pyrophosphate (GGPP), which is an important enzyme in the secondary metabolism pathway. In this study, we present the first analysis of the gene family in TKS, where a total of seven family members were identified. Their core motifs, conserved structural domains, gene structures, and cis-acting elements were described. In addition, two phylogenetic trees were constructed based on the Neighbor-Joining and Maximum-Likelihood methods, and the were highly conserved and exhibited good collinearity with the other species. Transcriptome data showed that seven gene members were expressed in all the 12 tissues measured, and , , and 6 were highly expressed in latex, suggesting that they may be associated with natural rubber synthesis. Meanwhile, quantitative real-time PCR (qRT-PCR) showed that the expression levels of the genes were regulated by the ethylene and methyl jasmonate (MeJA) pathways. Subcellular localization results indicated that all the TkGGPS proteins were also located in chloroplasts involved in photosynthesis in plants. This study will provide valuable insights into the selection of candidate genes for molecular breeding and natural rubber biosynthesis in TKS.

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