Journal
FITOTERAPIA
Volume 150, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.fitote.2021.104831
Keywords
Gloriosa superba; Colchicine; Gloriosine; Climatic niche characterization; Molecular characterization; Chemodiversity
Categories
Funding
- NASF-ICAR
- DST-SEED division under SYST scheme
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The study analyzed the metabolic and molecular variability of Gloriosa superba populations in different eco-regions, identifying four elite chemotypes. Molecular analysis showed that different populations formed different subclusters, with Principal Component Analysis indicating that elite chemotypes are related to temperature, precipitation, and aridity gradient. The study also found a significant correlation between rhizospheric soil selenium and colchicine content in G. superba.
Gloriosa superba L. has economic significance due to colchicine, a bioactive compound used for gout. In present study metabolic and molecular variability in natural population of species was analyzed and correlated with edaphic and climatic factors. Thirty populations (wild) of G. superba were mapped from 10 different eco-regions of India at an elevation range of 10-1526 m, having no morphotypic variations. The two known biologically active alkaloids colchicine (ranged from 0.015-0.516%) and gloriosine (0.19-0.44%) were significantly varied (p < 0.05) among populations, leading to the identification of four elite chemotypes. Molecular variability from ISSR data divides the population in different sub clusters at intra-specific level, presenting the high similarity percentage with bootstrap value of 66-100%. Principal component analysis (PCA) revealed that elite chemotypes are related to temperature, precipitation and aridity gradient. The rhizospheric soil selenium was significantly correlated with colchicine content in G. superba.
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