Abstract:
BACKGROUND:Calophyllum brasiliense is highlighted as an important resource of calanolides, which are dipyranocoumarins that inhibit the reverse transcriptase of human immunodeficiency virus type 1 (HIV-1 RT). Despite having great medicinal importance, enzymes involved in calanolide, biosynthesis and the pathway itself, are still largely unknown. Additionally, no genomic resources exist for this plant species. RESULTS:In this work, we first analyzed the transcriptome of C. brasiliense leaves, stem, and roots using a RNA-seq strategy, which provided a dataset for functional gene mining. According to the structures of the calanolides, putative biosynthetic pathways were proposed. Finally, candidate unigenes in the transcriptome dataset, potentially involved in umbelliferone and calanolide (angular pyranocoumarin) biosynthetic pathways, were screened using mainly homology-based BLAST and phylogenetic analyses. CONCLUSIONS:The unigene dataset that was generated in this study provides an important resource for further molecular studies of C. brasiliense, especially for functional analysis of candidate genes involved in the biosynthetic pathways of linear and angular pyranocoumarins.
journal_name
BMC Plant Bioljournal_title
BMC plant biologyauthors
Gómez-Robledo HB,Cruz-Sosa F,Bernabé-Antonio A,Guerrero-Analco A,Olivares-Romero JL,Alonso-Sánchez A,Villafán E,Ibarra-Laclette Edoi
10.1186/s12870-016-0862-9subject
Has Abstractpub_date
2016-08-15 00:00:00pages
177issue
1issn
1471-2229pii
10.1186/s12870-016-0862-9journal_volume
16pub_type
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