Genome structure and evolutionary history of frankincense producing Boswellia sacra

Autor: Abdul Latif Khan, Ahmed Al-Harrasi, Jin-Peng Wang, Sajjad Asaf, Jean-Jack M. Riethoven, Tariq Shehzad, Chia-Sin Liew, Xiao-Ming Song, Daniel P. Schachtman, Chao Liu, Ji-Gao Yu, Zhi-Kang Zhang, Fan-Bo Meng, Jia-Qing Yuan, Chen-dan Wei, He Guo, Xuewen Wang, Ahmed Al-Rawahi, In-Jung Lee, Jeffrey L. Bennetzen, Xi-Yin Wang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: iScience, Vol 25, Iss 7, Pp 104574- (2022)
Druh dokumentu: article
ISSN: 2589-0042
DOI: 10.1016/j.isci.2022.104574
Popis: 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.
Databáze: Directory of Open Access Journals