Genome structure and evolutionary history of frankincense producing Boswellia sacra

Boswellia sacra Flueck (family Burseraceae) tree is wounded to produce frankincense. We report its de novo assembled genome (667.8 Mb) comprising 18,564 high-confidence protein-encoding genes. Comparing conserved single-copy genes across eudicots suggest >97% gene space assembly of B. sacra genom...

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Published in:iScience 2022-07, Vol.25 (7), p.104574-104574, Article 104574
Main Authors: Khan, Abdul Latif, Al-Harrasi, Ahmed, Wang, Jin-Peng, Asaf, Sajjad, Riethoven, Jean-Jack M., Shehzad, Tariq, Liew, Chia-Sin, Song, Xiao-Ming, Schachtman, Daniel P., Liu, Chao, Yu, Ji-Gao, Zhang, Zhi-Kang, Meng, Fan-Bo, Yuan, Jia-Qing, Wei, Chen-dan, Guo, He, Wang, Xuewen, Al-Rawahi, Ahmed, Lee, In-Jung, Bennetzen, Jeffrey L., Wang, Xi-Yin
Format: Article
Language:English
Subjects:
Evolutionary biology
Genomics
Plant biology
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Summary:Boswellia sacra Flueck (family Burseraceae) tree is wounded to produce frankincense. We report its de novo assembled genome (667.8 Mb) comprising 18,564 high-confidence protein-encoding genes. Comparing conserved single-copy genes across eudicots suggest >97% gene space assembly of B. sacra genome. Evolutionary history shows B. sacra gene-duplications derived from recent paralogous events and retained from ancient hexaploidy shared with other eudicots. The genome indicated a major expansion of Gypsy retroelements in last 2 million years. The B. sacra genetic diversity showed four clades intermixed with a primary genotype—dominating most resin-productive trees. Further, the stem transcriptome revealed that wounding concurrently activates phytohormones signaling, cell wall fortification, and resin terpenoid biosynthesis pathways leading to the synthesis of boswellic acid—a key chemotaxonomic marker of Boswellia. The sequence datasets reported here will serve as a foundation to investigate the genetic determinants of frankincense and other resin-producing species in Burseraceae. [Display omitted] •Assembly and architecture of frankincense producing Boswellia sacra Flueck•Comparative genomics and evolutionary history of frankincense tree within orders•Transcriptome of stem part and gene expression patterns of wounding to the tree•Resin biosynthesis pathway and related CYP450 enzymes and gene families Evolutionary biology; Genomics; Plant biology
ISSN:2589-0042
2589-0042
DOI:10.1016/j.isci.2022.104574