Abstract
The genus Swertia (Family: Gentianaceae) has cosmopolitan distribution which is present in almost all the continents except South America and Australia. Swertia genus has been renowned as one of the potent herbal drugs in the British, American, and Chinese Pharmacopeias as well as well-documented in the Indian traditional medicinal systems, viz. Ayurveda, Siddha, and Unani. Many species of this genus have therapeutic properties and have been used traditionally in the treatment of a number of health ailments viz. hepatitis, diabetes, inflammation, bacillary dysentery, cancer, malaria, fever etc. This genus is industrially important medicinal plant that has been used as a principal component in numerous marketed herbal/ polyherbal formulations. Medicinal usage of Swertia is endorsed to the miscellaneous compounds viz. xanthones, irridoids, seco-irridoids, and triterpenoids. A chain of systematic isolation of bio-active compounds and their diverse range of pharmacological effects during last 15–20 years proved this genus as industrially important plant. Due to the various practices of the Swertia species, annual demand is more than 100 tons per year for this important herb which is continuously increasing 10% annually. The market value rises 10% by the year as there is increased demand in national and international market resulted in adulteration of many Swertia spp. due to paucity of agricultural practices, exomorphological, phytochemical, and molecular characterization. Thus, efficient biotechnology methods are prerequisite for the mass production of authentic species, sustainable production of bio-active compounds and ex situ conservation. A chain of systematic biotechnological interventions in Swertia herb during last 20 years cover the assessment of genetic diversity, in vitro sustainable production of bio-active compounds and mass propagation of elite genotypes via direct and indirect organogenesis. This review attempts to present the comprehensive assessment on biotechnological process made in Swertia over the past few years.
Key points
• Critical and updated assessment on biotechnological aspects of Swertia spp.
• In vitro propagation and genetic diversity assessment in Swertia spp.
• Biosynthesis and sustainable production of secondary metabolites in Swertia spp.
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References
Abrol E, Vyas D, Koul S (2012) Metabolic shift from secondary metabolite production to induction of anti-oxidative enzymes during NaCl stress in Swertia chirata Buch.-Ham. Acta Physiol Plant 34:541–546
Ahuja A, Koul S, Kaul BL, Verma NK, Kaul MK, Raina RK, Qazi GN (2003) Media composition for faster propagation of Swertia chirayita. WO 03/045132 AL. US Patent 7238527
Anjum L, Ansari ZA, Yadav A, Mughees M, Ahmad J, Ahmad A (2014) Quantitative Determination of Swertiamarin in Swertia chirayita by HPTLC. Int J Eng Res Gen Sci 2(6):85–92
Bala S, Malik RA, Gupta RC (2015) New chromosome counts in some gentians from Western Himalayas. Caryologia 68(2):147–153
Balaraju K, Agastian P, Ignacimuthu S (2009) Micropropagation of Swertia chirata Buch.-Hams.ex Wall.: a critically endangered medicinal herb. Acta Physiol Plant 31(3):487–494
Balaraju K, Saravanan S, Agastian P, Ignacimuthu S (2011) A rapid system for micropropagation of Swertia chirata Buch-Ham. ex Wall.: an endangered medicinal herb via direct somatic embryogenesis. Acta Physiol Plant 33(4):1123–1133
Basnet DB (2001) Evolving nursery practices and method of cultivation of high value medicinal plant Swertia chirata Ham. Environ Ecol 19(4):935–938
Bhandari P, Kumar N, Gupta AP (2000) Micro-LC determination in Swertia species and bacoside- A in Bacopa monnieri. Chromatographia 64:599–602
Bhandari P, Gupta A, Singh B, Kaul V (2006) HPTLC determination of swertiamarin and amarogentin in Swertia species from the Western Himalayas. J Planar Chromatogr 19(109):212–215
Bisht SS, Bisht NS (2008) Callus induction studies in different explants of Swertia angustifolia (Buch-Ham). Plant Arch 8:713–716
Bisht D, Gupta M, Srivastava S, Datt B, Rawat AK (2011) Comparative pharmacognostic evaluation of three species of Swertia L.(Gentianaceae). J Pharmacogn 3(19):7–12
Cai Y, Quan T, Yu Y, Liu G, Xiang F (2015) Genotyping and metabolite characterization of somatic hybrids between Arabidopsis thaliana and Swertia mussotii. In Vitro Cell Dev Biol Plant 51(3):360–368
Cao Y, Wang Y, Ye J (2005) Differentiation of Swertia Mussotii Franch from Artemisiae Capillaris Herba by capillary electrophoresis with electrochemical detection. J Pharm Biomed 39(1-2):60–65
Cao TW, Geng CA, Ma YB, Zhang XM, Zhou J, Tao YD, Chen JJ (2015) Chemical constituents of Swertia mussotii and their anti-hepatitis B virus activity. Fitoterapia 102:15–22
Chakraborty S, Mukherjee D, Baskey S (2016) Morphological Diversity and Nomenclature of Swertia chirayita (Gentianaceae)—Recovery of Endangered Medicinal Plant Population in North Eastern Himalaya. Am J Plant Sci 7(06):741–755
Chassot P, Nemomissa S, Yuan YM, Küpfer P (2001) High paraphyly of Swertia L. (Gentianaceae) in the Gentianella-lineage as revealed by nuclear and chloroplast DNA sequence variation. Plant Syst Evol 229(1-2):1–21
Chaudhuri RK, Pal A, Jha TB (2007) Production of genetically uniform plants from nodal explants of Swertia chirata Buch. Ham. ex Wall—an endangered medicinal herb. In Vitro Cell Dev Biol Plant 43(5):467–472
Chaudhuri RK, Pal A, Jha TB (2008) Conservation of Swertia chirata through direct shoot multiplication from leaf explants. Plant Biotech Rep 2(3):213–218
Chaudhuri RK, Pal A, Jha TB (2009) Regeneration and characterization of Swertia chirata Buch.-Ham. ex Wall. plants from immature seed cultures. Sci Hortic 120:107–114
Cheng H, Feng W, Meng X (2007) Comparisons of oleanolic acid contents in Swertia franchetiana from different areas of Qinghai province. Zhongyaocai 30:521–552
Cunningham AB, Brinckmann JA, Schippmann U, Pyakurel D (2018) Production from both wild harvest and cultivation: The cross-border Swertia chirayita (Gentianaceae) trade. J Ethnopharmacol 225:42–52
Dafadar A, Jha TB (2012) In vitro propagation and conservation of Swertia bimaculata Hook F.& Thoms. Indian J Biotechnol 11:295–299
Das J, Thapa S, Pradhan D, Thorat SS, Talukdar NC (2013) Intra-specific genetic diversity, phytochemical analysis and antioxidant activities of a potential Himalayan Swertia (Swertia bimaculata Hook. F. & Thomas.). Ind Crop Prod 49:341–347
Gao R, Wang L, Yang Y, Ni J, Zhao L, Dong S, Guo M (2015) Simultaneous determination of oleanolic acid, ursolic acid, quercetin and apigenin in Swertia mussotii Franch by capillary zone electrophoresis with running buffer modifier. Biomed Chromatogr 29:402–409
Groff PA, Hale AM, Whitlock BA (2015) Chloroplast Lineages in Disjunct Western North American Populations of Swertia perennis (Gentianaceae). Syst Bot 40(1):220–228
Gupta M, Bisht D, Khatoon S, Srivastava S, Rawat AK (2011) Determination of ursolic acid a biomarker in different Swertia species through high performance thin layer chromatography. Chin Med 2(04):121–124
He T, Xu J, Yang L, Wang H (2012) An efficient method for plant regeneration from calli of Swertia mussotii, an endangered medicinal herb. Am J Plant Sci 3(07):904–908
Huang W, Xu C, Zhou D (2007) Determination of iridoids and triterpenes in herb of Swertia pseudochinesis by RP-HPLC. Zhongguo Zhongyao Zazhi 32:2494–2496
Ishimaru K, Sudo H, Satake M, Matsunaga Y, Hasegawa Y, Takemoto S, Shimomura K (1990) Amarogentin, amaroswerin and four xanthones from hairy root cultures of Swertia japonica. Phytochemistry 29:1563–1565
Jha TB, Dafadar A, Chaudhuri RK (2011) Somatic embryogenesis in Swertia chirata Buch. Ham ex Wall-A multipotent medicinal herb. Asian J Biotechnol 3:186–193
Jiang L, Cai Y, Xia G (2012) Introgression of the heterologous nuclear DNAs and efficacious compositions from Swertia tetraptera Maxim. into Bupleurum scorzonerifolium Willd. via somatic hybridization. Protoplasma 249:737–745
Joshi P, Dhawan V (2005) Swertia chirayita—an overview. Curr Sci 89:635–640
Joshi P, Dhawan V (2007a) Axillary multiplication of Swertia chirayita (Roxb. Ex Fleming) H.Karst., a critically endangered medicinal herb of temperate Himalayas. In Vitro Cell Dev Biol Plant 43(6):631–638
Joshi P, Dhawan V (2007b) Assessment of genetic fidelity of micropropagated Swertia chirayita plantlets by ISSR marker assay. Biol Plant 51(1):22–26
Joshi K, Joshi A (2008) Swertia L. (Gentianaceae) in Nepal Himalaya: Checklist, Phytogeography, Ethnobotany and Conservation Status. Ethnobot Leaflets 2008(1):43
Kaur P, Pandey DK, Gupta RC (2018) Assessment of Genetic Diversity among Swertia Species and Biotechnological Strategies for Production of Bio-Active Compounds (Doctoral dissertation, lovely Professional University)
Kaur P, Gupta RC, Dey A, Pandey DK (2019a) Simultaneous quantification of oleanolic acid, ursolic acid, betulinic acid and lupeol in different populations of five Swertia species by using HPTLC-densitometry: Comparison of different extraction methods and solvent selection. Ind Crop Prod 130:537–546
Kaur P, Pandey DK, Gupta RC, Dey A (2019b) Assessment of genetic diversity among different population of five Swertia species by using molecular and phytochemical markers. Ind Crop Prod 138:111569
Kaur P, Pandey DK, Gupta RC, Dey A (2019c) Simultaneous microwave assisted extraction and HPTLC quantification of mangiferin, amarogentin, and swertiamarin in Swertia species from Western Himalayas. Ind Crop Prod 132:449–459
Kaur P, Pandey DK, Dey A, Dwivedi P, Malik T, Gupta RC (2020a) Swertia spp.: A Potential Source of High-Value Bioactive Components, Pharmacology, and Analytical Techniques. In: Bioactive Natural products in Drug Discovery. Springer, Singapore, pp 165–213
Kaur P, Gupta RC, Dey A, Malik T, Pandey DK (2020b) Validation and quantification of major biomarkers in ‘Mahasudarshan Churna’-an ayurvedic polyherbal formulation through high-performance thin-layer chromatography. BMC Complem Med Therap 20(1):1–1
Kaur P, Gupta RC, Dey A, Malik T, Pandey DK (2020c) Optimization of salicylic acid and chitosan treatment for bitter secoiridoid and xanthone glycosides production in shoot cultures of Swertia paniculata using response surface methodology and artificial neural network. BMC Plant Biol 20:1–3
Kawakami H, Hara K, Komine M, Yamamoto Y (2015) Production of secoiridoids by adventitious root culture of Swertia japonica. In Vitro Cell Dev Biol Plant 51(5):1–6
Keil M, Hartle B, Guillaume A, Psiorz M (2000) Production of amarogentin in root cultures of Swertia chirata. Planta Med 66(05):452–457
Khanal S, Shakya N, Thapa K, Pant DR (2015) Phytochemical investigation of crude methanol extracts of different species of Swertia from Nepal. BMC Res Notes 8(1):821
Khoshoo TN, Tandon SR (1963) Cytological and pollination studies on some Himalayan species of Swertia. Caryologia 16(2):445–477
Kikuchi M, Kakuda R, Yaoita Y, Kikuchi M (2008) New secoiridoid glycosides from Swertia japonica. Helv Chim Acta 91(7):1236–1243
Kitamura Y, Miura H, Sugii M (1989) Plant regeneration from callus cultures of Swertia pseudochinensis. Jpn J Pharmacol 43:256–258
Koul S, Suri KA, Dutt P, Sambyal M, Ahuja A, Kaul MK (2009) Protocol for in vitro regeneration and marker glycoside assessment in Swertia chirata Buch-Ham. P. In Vitro Cult Sec Metabol Anal Arom Med Plants 139–153
Kshirsagar PR, Pai SR, Nimbalkar MS, Gaikwad NB (2015a) Quantitative determination of three pentacyclic triterpenes from five Swertia L. species endemic to Western Ghats, India, using RP-HPLC analysis. Nat Prod Res 29:1783–1788
Kshirsagar PR, Chavan JJ, Umdale SD, Nimbalkar MS, Dixit GB, Gaikwad NB (2015b) Highly efficient in vitro regeneration, establishment of callus and cell suspension cultures and RAPD analysis of regenerants of Swertia lawii Burkill. Biotechnol Rep 6:79–84
Kshirsagar PR, Gaikwad NB, Panda S, Hegde HV, Pai SR (2016) Reverse phase-ultra flow liquid chromatography-diode array detector quantification of anticancerous and antidiabetic drug mangiferin from 11 species of Swertia from India. Pharmacogn Mag 12(Suppl 1):S32–S36
Kshirsagar P, Umdale S, Chavan J, Gaikwad N (2017a) Molecular Authentication of Medicinal Plant, Swertia chirayita and its Adulterant Species. Proc Natl Acad Sci India B 87(1):101–107
Kshirsagar PR, Gaikwad NB, Pai SR, Bapat VA (2017b) Optimization of extraction techniques and quantification of swertiamarin and mangiferin by using RP-UFLC method from eleven Swertia species. S Afr J Bot 108:81–89
Kumar V, Chandra S (2014) High frequency somatic embryogenesis and synthetic seed production of the endangered species Swertia chirayita. Biologia 69:186–192
Kumar V, Van Staden J (2015) A review of Swertia chirayita (Gentianaceae) as a traditional medicinal plant. Front Pharmacol 6:308
Kumar V, Chauhan RS, Sood H (2013) In vitro production and efficient quantification of major phytopharmaceuticals in an endangered medicinal herb, Swertia chirata. Int J Biotechnol Bioeng Res 4:495–506
Kumar V, Singh SK, Bandopadhyay R, Sharma M, Chandra S (2014) In vitro organogenesis secondary metabolite production and heavy metal analysis in Swertia chirayita. Cent Eur J Biol 9:686–698
Li YL, Ding CX, Wang HL (2008) Separation and determination of flavones and xanthone glycosides in Tibetan folk medicinal species Swertia mussotii and Swertia franchetiana by capillary electrophoresis. J Anal Chem 63:574–576
Li J, Zhao YL, Huang HY, Wang YZ (2017) Phytochemistry and pharmacological activities of the genus Swertia (Gentianaceae): a review. Am J Chin Med 45(04):667–736
Lienert J, Fischer M, Schneller J, Diemer M (2002) Isozyme variability of the wetland specialist Swertia perennis (Gentianaceae) in relation to habitat size, isolation, and plant fitness. Am J Bot 89(5):801–811
Liu T, Liu Y, Tang L (2015) Medicinal ethnic botany research of Swertia Genus. Nat Prod Res Dev 27:191–197
Liu Y, Wang Y, Guo F, Zhan L, Mohr T, Cheng P, Huo N, Gu R, Pei D, Sun J, Tang L (2017) Deep sequencing and transcriptome analyses to identify genes involved in secoiridoid biosynthesis in the Tibetan medicinal plant Swertia mussotii. Sci Rep 7(1):43108
Long H, Hu X, Huang H (2009) Tissue culture of Swertia bimaculata. Chin Trad Herb Drugs 3:044
Mahendran G, Bai VN (2014) Micropropagation, antioxidant properties and phytochemical assessment of Swertia corymbosa (Griseb.) Wight ex CB Clarke: a medicinal plant. Acta Physiol Plant 36(3):589–603
Mahendran G, Bai VN (2017) Plant regeneration through direct somatic embryogenesis, antioxidant properties, and metabolite profiles of Swertia corymbosa (Griseb.) Wight ex CB Clarke. Plant Biosyst 151:39–49
Mehta A, Raina R, Rana RC, Pal Y (2017) Comparative morphological studies of some Swertia species. J Pharmacogn Phytochem 6(1):482–487
Mészáros S, Höhn M (2002) Species diversity and advancement of Swertia (Gentianaceae): ecological and morphological correlates. Acta Bot Hungar 44(3-4):317–334
Misra A, Shasany AK, Shukla AK, Darokar MP, Singh SC, Sundaresan V, Singh J, Bagchi GD, Jain SP, Saikia D, Khanuja SP (2010) AFLP markers for identification of Swertia XY2species (Gentianaceae). Genet Mol Res 9(3):1535–1544
Miura H, Kawashima K, Kitamura Y, Sugii M (1986) Studies on the Tissue Culture of Swertia japonica MAKINO. III: Glycosylation of Naringenin in Cultured Cells. Jpn J Pharmacol 40:40–43
Murthy HN, Dandin VS, Paek KY (2016) Tools for biotechnological production of useful phytochemicals from adventitious root cultures. Phytochem Rev 15(1):129–145
Nampy S, Shahina PM, Haseena T, Ashwini HS (2015) A taxonomic revision of Swertia L. (Gentianaceae) in South India, with one new species and seven lectotypifications. Phytotaxa 195(1):31–52
Negi JS, Singh P, Rawat B (2011) Chemical constituents and biological importance of Swertia: a review. Curr Res Chem 3(1):1–15
Nemomissa S (1997) A New Species of Swertia (Gentianaceae) from Tropical East Africa: Tanzania. Kew Bull 52:487–490
Padhan JK, Kumar V, Sood H, Singh TR, Chauhan RS (2015) Contents of therapeutic metabolites in Swertia chirayita correlate with the expression profiles of multiple genes in corresponding biosynthesis pathways. Phytochemistry 116:38–47
Pandey DK, Kaur P (2018) Optimization of extraction parameters of pentacyclic triterpenoids from Swertia chirata stem using response surface methodology. 3Biotech 8(3):152
Pandey DK, Basu S, Jha TB (2012) Screening of different East Himalayan species and populations of Swertia L. based on exomorphology and mangiferin content. Asian Pac J Trop Biomed 2(3):S1450–S1456
Pant M, Bisht P, Gusain MP (2010) De novo shoot organogenesis from cultured root explants of Swertia chirata Buch.-Ham. ex Wall.: an endangered medicinal plant. Nat Sci 8(9):244–252
Pant M, Bisht P, Gusain MP (2012) In vitro propagation through root-derived callus culture of Swertia chirata Buch.-Ham. ex Wall. Afr J Biotechnol:11(29)
Peng X, Wang H, Chen SG (2001) Studies on the efficacious chemical constituents of medicinal of Swertia davidi. Ziran Kexueba 22:59–60
Pradhan BK, Badola HK (2010) Chemical stimulation of seed germination in ex situ produced seeds in Swertia chirayita, a critically endangered medicinal herb. Res J Seed Sci 3(3):139–149
Pringle JS (1990) Taxonomic notes on Western American Gentianaceae. Sida 14(2):179–187
Rai A, Nakamura M, Takahashi H, Suzuki H, Saito K, Yamazaki M (2016) High-throughput sequencing and de novo transcriptome assembly of Swertia japonica to identify genes involved in the biosynthesis of therapeutic metabolites. Plant Cell Rep 35:2091–2111
Raina R, Johri AK, Srivastava LJ (1994) Seed Germination Studies in Swertia chirata L. Seed Res 22:62–63
Samaddar T, Chaubey B, Jha S, Jha TB (2013) Determination of swertiamarin and amarogentin content and evaluation of antibacterial activity in Eastern Himalayan species of Swertia L. Pharmacogn 3(4):64
Samaddar T, Than MMM, Jha TB, Jha S (2015) Cytogenetic and DNA fingerprinting analysis in three species of Swertia from Eastern Himalaya. Caryologia 68:207–216
Sarasan V, Cripps R, Ramsay MM, Atherton C, McMichen MO, Prendergast G, Rowntree JK (2006) Conservation in vitro of threatened plants–progress in the past decade. In Vitro Cell Dev Biol Plant 42(3):206–214
Selvam ABD (2011) Exomorphic and Endomorphic features of Swertia chirayita. J Pharmacogn 3(19):1–6
Shailajan S, Abhishek JS (2009) Quantification of Swertiamarin from whole plant powder of Swertia densiflora (Griscb.) Kashyap. collected in different seasons. Asian J Chem 21(6):4351
Sharma V, Kamal B, Srivastava N, Dobriyal AK, Jadon VS (2013) Effects of Additives in Shoot Multiplication and Genetic Validation in Swertica chirayita Revealed through RAPD Analysis. Plant Tissue Cult Biotechnol 23:11–19
Sharma V, Belwal N, Kamal B, Dobriyal AK, Jadon VS (2016) Assessment of Genetic Fidelity of in vitro Raised Plants in Swertia chirayita through ISSR, RAPD analysis and Peroxidase Profiling during Organogenesis. Braz Arch Biol Technol 59
Shibuya M, Katsube Y, Otsuka M, Zhang H, Tansakul P, Xiang T, Ebizuka Y (2009) Identification of a product specific β-amyrin synthase from Arabidopsis thaliana. Plant Physiol Biochem 47:26–30
Shrestha JC, Bhattarai T, Sijapati J, Rana N, Maharjan J, Rawal DS, Raskoti BB, Shrestha S (2013) Assessment of Genetic Diversity in Nepalese Populations of Swertia chirayita (Roxb. Ex Fleming) H. Karst Using RAPD-PCR Technique. Am J. Plant Sci 4(8):1617
Singh B, Sharma RA (2015) Plant terpenes: defense responses, phylogenetic analysis, regulation and clinical applications. 3Biotech 5:129–151
Soumendra C, Mukherjee D, Dasgupta T (2009) Cytological study on chromosome behaviour and new report on nature of mode of pollination of Swertia chirayita, a high value endangered medicinal plant of North Eastern Himalayan region. Caryologia 62(1):43–52
Tamhankar S, Ghate V, Raut A, Rajput B (2009) Molecular profiling of “Chirayat” complex using inter simple sequence repeat (ISSR) markers. Planta Med 75(11):1266–1270
Thomas TD (2008) The role of activated charcoal in plant tissue culture. Biotechnol Adv 26:618–631
Tian CW, Zhang T (2006) HPLC determination of swertiamarin and gentiopicroside contents in Swertia herb. Zhongcayao 37:442–443
Tian LY, Chen JC, Huang FJ, Fang JB (2008) Simultaneous determination of four active components in Swertia by RP-HPLC. Chin J Nat Med 6(6):444–449
Urbaniak J, Kwiatkowski P, Pawlikowski P (2018) Phylogeography of Swertia perennis in Europe based on cpDNA markers (No. e26634v1). PeerJ Preprints
Verma NK, Kumar A (2001) Isozyme polymorphism and genetic diversity among Swertia species-endangered medicinal plants of Himalayas. Indian J Plant Gen Res 14(1):74–77
Wang Z, Ma C, Tang S, Xiao H, Kakiuchi N, Kida H, Hattori M (2008) Qualitative and Quantitative Analysis of Swertia Herbs by High Performance Liquid Chromatography-Diode Array Detector-Mass Spectrometry (HPLC-DAD-MS). Chem Pharm Bull 56(4):485–490
Wang L, An L, Hu Y, Wei L, Li Y (2009) Influence of phytohormones and medium on the shoot regeneration from leaf of Swertia chirata Buch.-Ham. Ex wall. in vitro. Afr J Biotechnol 8(11):2513–2517
Wang J, Zhao C, Liu C, Xia G, Xiang F (2011) Introgression of Swertia mussotii gene into Bupleurum scorzonerifolium via somatic hybridization. BMC Plant Biol 11:71
Wawrosch C, Maskay N, Kopp B (1999) Micropropagation of the threatened Nepalese medicinal plant Swertia chirata Buch.-Ham. ex. Wall. Plant Cell Rep 18(12):997–1001
Wilson SA, Roberts SC (2014) Metabolic engineering approaches for production of biochemicals in food and medicinal plants. Curr Opin Biotechnol 26:174–182
Xia C, Liu G, Wang Y (2007) Quantitative determination of four effective components in Swertia delavayi by HPLC. Zhongguo Yiyuan Yaoxue Zazhi 27:598–601
Xue CY, Li DZ, Lu JM, Yang JB Liu JQ (2006) Molecular authentication of the traditional Tibetan medicinal plant Swertia mussotii. Planta Medica 72(13):1223–1226
Yadav A, Ahmad J, Ahmad A (2012) Development of Randomly Amplified Polymorphic DNA-Sequence characterized amplified region marker for authentication of Swertia chirayita, an endangered Himalayan plant. J Plant Mol Biol Biotechnol 3:27–34
Yang L, Zhou G, Chen G (2011) Genetic diversity and population structure of Swertia tetraptera (Gentianaceae), an endemic species of Qinghai-Tibetan Plateau. Biochem Syst Ecol 39(4-6):302–308
Yu MT, Wong KL, Zong YY, Shaw PC, Che CT (2008) Identification of Swertia mussotii and its adulterant Swertia species by 5S rRNA gene spacer. Zhongguo Zhongyao Zazhi 33(5):502–504
Yu Y, Li Z, Wang P, Xiang F (2012) Genetic and biochemical characterization of somatic hybrids between Bupleurum scorzonerifolium and Gentianopsis paludosa. Protoplasma 249:1029–1035
Zhang Y, Zheng Y, Xiuying XU, Shanquan FU (2007) Determination of demethylbellidifolin in different parts of Swertia davidi Franch by HPLC. Zhongguo Yaofang 18:1163–1164
Zhu BK, Zhe W, Duan YQ, Wang MF, Gao Y, Wei GZ, Liao TG (2012) Two new xanthones from Swertia angustifolia. J Asian Nat Prod Res 14:154–158
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The authors are grateful to the School of Bioengineering and Biosciences, Lovely Professional University and IPLS-DBT Project (Project no. BT/PR-4548/INF/22/146/2012) sanctioned to Punjabi University, Patiala. The corresponding author thankfully acknowledges “Faculty Research and Professional Development Fund” (FRPDF) for financial assistance from Presidency University.
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PK did the literature survey and prepared the original draft. DKP and RCG revised the manuscript and drew the figures. VK and PD prepared the tables and contributed to the discussion part. DKP and AD designed, edited and supervised the entire work. RS helped in editing and revising the manuscript. All authors read and approved the manuscript.
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Kaur, P., Pandey, D.K., Gupta, R.C. et al. Biotechnological interventions and genetic diversity assessment in Swertia sp.: a myriad source of valuable secondary metabolites. Appl Microbiol Biotechnol 105, 4427–4451 (2021). https://doi.org/10.1007/s00253-021-11345-4
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DOI: https://doi.org/10.1007/s00253-021-11345-4