Traditional medicinal plants are sources of phytochemicals that play vital roles in disease prevention and treatment. These sources are inexpensive and readily available and have been used in developed and least developed countries [1, 2]. The discovery of Salicin (analgesic and antipyretic) by Rafaele Piria, in 1832, from Salix alba [3] is considered a milestone in developing the global pharmaceutical industry. Since then, traditional medicinal plants have gained considerable importance as sources of bioactive phytochemicals for drug discovery [4, 5]. It has been estimated that about 30% of therapeutic drugs are derived from natural resources, particularly plants and microorganisms [6, 7]. Besides, the completion of the Human Genome Project has opened a new chapter in understanding and treating human diseases, initiating and gradually deepening research on herbs to the genomic level [8]. Further, Tu Youyou’s discovery of artemisinin from the plant Artemisia annua to treat malaria also exhibited the potential role of medicinal plants [9].
Traditional herbal medicines in the Latin America came into contact with other medical traditions at the beginning of the 16th century, introduced throughout the Conquest and European colonial expansion. Within a dominant sociopolitical framework, the folk herb traditions were fused with other medical cultures and syncretized by religious doctors and other various social workers of the certain regional public health system [10]. In the next 300 years, the historical relations between the native medical traditions in the Latin America and the medical cultures of other continents, created a particularly rich ethnomedicinal foundation [11] and continually impacted the national health system of Latin America countries.
Brazil is an ideal country in Latin America that has established itself in public health, emphasizing the application and development of traditional medicinal plants and their derivatives. Brazil has the world's largest share of biodiversity (15–20%), and most of this biodiversity has not been explored, offering plenty of scope for herbal medicine development [3, 12]. The diverse Brazilian culture contributed mainly to the use of herbal medicines. Besides, approximately 305 ethnic groups, speaking 274 languages [13], have thousand years of ethnopharmacological history [14]; around 1000 plant species have been used as Amazon’s traditional medicine [15, 16]. Additionally, the Portuguese, who colonized Brazil between 1500 and 1822, brought herbs from other parts of the world instead of exploring the native medicinal plants [17]. The traditional herbal medical system with the combined knowledge of the indigenous people, Europeans, and Africans has led to the development of botanical medicines [18]. Consequently, Brazil has become the biggest pharmaceutical market and the only country in Latin America ranked amongst the top pharmaceutical markets worldwide [19]; it is one of the world’s most profitable pharmaceutical markets [20]. As the standard publications regulating the quality of drugs, the pharmacopoeias make the quality standards obligatory, ensuring consistency in medicines approved by representatives of specific political units and representing the local progress in related scientific fields [21]. The latest (sixth) edition of BP has revoked all other editions; serves as the nucleus of future editions through constant review, seeking to emerge as an international standard. At present, the Brazilian Pharmacopoeia Commission is an observer for European and International pharmacopoeias and has a mutual acknowledgement with the Argentine Pharmacopoeia [22]. It will also help guide proposals for the joint development of pharmacopoeias with countries on the South America continent. Meanwhile, as a national pharmacopoeia in the Portuguese language, the Brazilian pharmacopoeia also has an influence on other regions, including Macau, in where could be a blossom of traditional medicinal plants’ development, integrating Brazilian herbal knowledge and Chinese.
New proteomic and genomic technologies have led to a resurgence of interest in natural products in academia and pharmaceutical organizations [23, 24]. DNA barcode is a short DNA fragment different between species [25], which provides a practical solution for identifying species. In addition, the optimal combination of single-locus barcodes with chloroplast genome (super-barcodes) provides a new method for efficient plant identification [26]. Thus, a database integrating DNA barcodes and organelle genomes may solve the increasing challenges in plant identification, not just in Brazil but also globally. With the development of sequencing technology and synthetic biology, the transcriptome and genome of plants have been sequenced and used to synthesize the desired compounds by bacterial engineering [27]. For example, ingredients with high medicinal activity, such as artemisinin [28, 29] and paclitaxel [30], have been extracted from medicinal plants. With the help of omics data, the decomposition of the biosynthetic pathway of drug compounds has also got into the fast lane [31, 32].
Quality germplasm resources are the key to the generation of omics data. However, various wild resources of plant species have been endangered due to habitat destruction and extensive exploitation and utilization [33–35]. Molecular-marker-assisted breeding based on genomic data can enrich germplasm resources and protect wild resources efficiently [36]. Cultivation of wild medicinal plants has become an inevitable trend of sustainable development [37]. Representative examples of comprehensive omics databases assisting crop breeding are available for rice [38], maize [39], and wheat [40], but none in herbs. A database collecting omics data of medicinal plants could be significant.
A genomic database is a warehouse that organizes, stores, and manages a variety of genomic data. There are three public, comprehensive genomic databases available: the National Centre for Biotechnology Information (NCBI), the European Institute of Bioinformatics (EBI), and the DNA Database of Japan (DDBJ). With the rapid increase in the volume and complexity of biological data, these databases play important roles in advancing molecular research [41]. Several studies have published genomic data of medicinal plants; however, problems such as different research team hosts, inconsistent data formats, and unstable web services bring challenges to utilizing the herb genomic data. Besides, due to the continuous improvement in genome assembly and species sequencing, the number of genome assemblies within a single species is also increasing [31, 42]. The use of these multiple versions of a genome assembly can be confusing and time-consuming. Therefore, genomic data need to be organized and displayed for further use.
In the present study, BPGD (Brazilian Pharmacopoeia Genomic Database), a database of Brazilian Pharmacopoeia (BP) medicinal plants containing genetic information, including genome, transcriptome, cp-G, and DNA barcodes, was built. The BPGD will provide a valuable resource for accelerating genome research and molecular breeding of traditional medicinal plants in Brazil.