The genome of Lignosus tigris: Uncovering its hidden nutraceutical potential
Document Type
Article
Publication Date
3-1-2023
Abstract
Lignosus tigris is a medicinal mushroom that belongs to the Lignosus genus of the Polyporaceae family of fungi. Due to similar morphologies, it has often been mistakenly recognized as Lignosus rhinocerus. Since its discovery in 2013, no in-depth analysis of its genome has been performed. This study is the first to present a de novo draft genome assembly of L. tigris, providing deeper insight into its biological functions and nutraceutical potential. Our analysis revealed that its genome contains numerous genes encoding carbohydrate-active enzymes (CAZymes), cytochromes P450 and secondary metabolite biosynthetic gene clusters for terpenes, polyketides and non-ribosomal peptides which may be responsible for the production of its bioactive compounds. L. tigris has genes for the complete biosynthesis pathways of vitamins B6 and D2, signifying its potential as a source of these essential vitamins. The L. tigris genome was also found to encode bioactive proteins such as chitinase, lectin and two putative fungal immunomodulatory proteins. Although our amino acid-based phylogenetic analysis revealed that L. tigris has a close relationship with its sister species, L. rhinocerus, the whole genome alignment revealed that 50.51% of L. tigris genes were not matched to L. rhinocerus. Data from our study presents opportunities for subsequent identification and validation of bioactive proteins from L. tigris; further highlighting its nutritional potential as a functional food. (c) 2023 SAAB. Published by Elsevier B.V. All rights reserved.
Keywords
Lignosus tigris, Genome, Secondary metabolite, Vitamins, Carbohydrate -active enzymes, Bioactive proteins
Divisions
fac_med,molecular
Publication Title
South African Journal of Botany
Volume
154
Publisher Location
RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS