## 1 Introduction
angustifolia_ 'JX-2' [9], and _L. angustifolia_ '[PERSON]' [10]. Figure 2: The proposed pathway for the biosynthesis of oleanolic acid and unsolic acid. The terpenoid biosynthetic genes identified in this study are indicated in red: MVA, mexulonic acid; MEP, 2-C-methyl-D-erythritol 4-phosphate; IPP, isopentenyl diphosphate; DMAPP, isomer dimethylallyl diphosphate; AACT, acetyl-CoA acetyltransferase; HMGS, hydroxymethylglutaryl-CoA synthase; HMGR, 3-hydroxy-3-methylglutaryl-CoA reductase; MVK, mexulonate kinase; PMK, phosphomevalonate kinase; MVD, mexulonate-5-pyrophosphate decarboxylase; DXS, 1-deoxy-D-xylulose-5-phosphate synthase; DXR, 1-deoxy-D-xylulose 5-phosphate reductio isomerase; MCT, 2-C-methyl-D-erythritol 4-phosphate cytidylyl-transferase; CMK, 4-diphosphocytidyl-2-C-methyl-D-erythritol kinase; MCS, 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase; HDS, 4-hydroxy-3-methylbut-2-enyl-diphosphate synthase; HDR, 4-hydroxy-3-methylbut-2-enyl diphosphate reductase; IDI, isopentenyl diphosphate isomerase; GPPS, geranyl diphosphate synthase; FPPS, farnesyl pyrophosphate synthase; SQS, squalene synthase; and SQE, squalene epoxidase. Free radicals, which are generated during normal cellular processes, are reactive oxygen species (ROS) that, in excess quantities, can potentially cause damage to nucleic acids, proteins, and lipids. To counter these detrimental effects, plants have evolved a range of antioxidant defense systems whereby antioxidants scavenge or deactivate these radicals [11]. However, under conditions where the balance between ROS production and deactivation is disrupted, ROS-induced oxidative stress can be sufficiently strong to cause irreparable damage [12]. From the perspective of human health, concerns regarding oxidative stress and the associated diseases and disorders have provided an incentive to increase the consumption of lavelander plants or products, which may have beneficial effects with respect to the prevention of diverse diseases, including cancer and diabetes [3; 13; 14; 15]. Moreover, lavelander plants are also noted for their antimicrobial properties that can contribute to inhibiting pathogen growth [16]. These beneficial effects, associated with antioxidative, antidiabetic, and anti-inflammatory properties, are attributed to a diverse range of metabolites, including terpen, phenolic compounds, flavonoids, anthocyanins, and carotenoids [17; 18; 4; 19]. To date, there have been few studies that have focused on the RNA-seq analysis and metabolic profiling of _L.__pubescens_. In this study, we employed the Illumina NGS platform to provide biological information on _L.__pubescens_ and examine the terpenoid biosynthetic pathway in this species. We also used qRT-PCR-based transcriptomic profiling and HPLC- and GC-TOFMS-based metabolite profiling to characterize triterpen biosynthesis in different parts of the _L.__pubescens_ plant and evaluated the antioxidant potential of _L.__pubescens_ leaf. The aim of this study was to compile important datasets acquired from the comprehensive analysis of the transcriptome and metabolome of _L.__pubescens_ (thereby providing a basis for future studies) and to characterize terpenoid biosynthesis in the different organs of _L.__pubescens_.