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Assessment of genetic diversity, population structure and phytochemical variations in Polygonatum cirrhifolium (Wall.) Royle: an endangered medicinal herb

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Abstract

Polygonatum cirrhifolium (Wall.) Royle is an important medicinal herb of the family Asparagaceae used to cure several ailments. The rhizome of the species forms an important ingredient of “Chyavanprash” which is identified for its rejuvenating properties. However, P. cirrhifolium is least explored scientifically and systematically till date. Therefore, in this study genetic diversity and phytochemical variations along with antimutagenic activity of P. cirrhifolium populations were evaluated. Antimutagenic activity varied remarkably (p < 0.05) among population and  Gagar population with significantly (p < 0.05) higher DNA recovery (84.95%) percentage. Higher genetic diversity (He) was recorded among populations using RAPD (He, 0.30–0.36) and ISSR (0.25–0.38) markers. High intra and low inter population variations were recorded in the species using both kinds of markers. Phenolics (p < 0.05; r = 0.924); tannins (p < 0.05; r = 0.897) and DNA damage inhibition efficiency displayed a highly positive correlation with genetic diversity (estimated using ISSR markers). The population structure analysis of P. cirrhifolium revealed that the greatest value of the K was 3 for studied populations. Gene flow among studied populations was found sufficient to encounter genetic erosion in the species. Therefore, it is recommended that the populations with higher ingredient and genetic diversity can be utilized for conservation priority and management plan of this species.

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Acknowledgements

The authors are thankful to Director, GBPNIHE, Kosi-Katarmal, Almora for facilities and encouragement. Help obtained from the members of BCM & BTA Group is highly acknowledged. This paper is the part of Ph. D. thesis of Dr. Renu Suyal and dedicated to Late Dr. R. S. Rawal for his supervision during the Ph. D. work.

Funding

This work was supported under Botanical Garden Scheme of Ministry of Environment, Forest and Climate change (MoEF&CC), New Delhi (F.N. BSI-290/6/2013- Tech; Dated 29/09/2013) and Project No. 4 (In house project) funded to CBCM group by GB Pant National Institute of Himalayan Environment (MoEF&CC).

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Contributions

RS, AKJ, and IDB conceptualized the study. RS and AKJ standardized methodology and conducted the experiments. AKJ performed data analysis. IBD and RSR contributed in management of resources and funds. RS and AKJ contributed in Writing—Original Draft of the MS. All authors contributed in Writing—Review & Editing of the manuscript.

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Correspondence to Arun K. Jugran.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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This MS is the authors' own original work, which has not been previously published elsewhere. The paper is not currently being considered for publication elsewhere. The paper reflects the authors' own research and analysis in a truthful and complete manner.

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Suyal, R., Jugran, A.K., Bhatt, I.D. et al. Assessment of genetic diversity, population structure and phytochemical variations in Polygonatum cirrhifolium (Wall.) Royle: an endangered medicinal herb. Genet Resour Crop Evol 69, 2383–2397 (2022). https://doi.org/10.1007/s10722-022-01378-7

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  • DOI: https://doi.org/10.1007/s10722-022-01378-7

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