Abstract
Chromosome characters of three indigenous medicinal plants of high repute were studied. Their karyotypes were commonly mono-modal, decreasing in length from the longest to the shortest chromosomes. The chromosome complement in centromeric positions was 6sm+34M+24m for Bacopa monnieri (L.) Wettst. (2n = 64), 2m.st+12M+6sm+2m for Tylophora indica (Burm.f.) Merrill (2n = 22) and 2m.st+4m.sm+4M+18m+20sm for Withania somnifera (L.) Dunal (2n = 48).
Similar content being viewed by others
References
Anonymous. Wealth of India, raw materials, vol. 2. New Delhi: CSIR; 1988. p. 2–3.
Bhaduri PN. Chromosome numbers of some Solanaceous plants of Bengal. J Indian Bot Soc. 1933;12:56–64.
Bir SS, Neelam. In chromosome number reports LXIX. Taxon. 1980;29:703–30.
Carr GD. Chromosome numbers of Hawaiian flowering plants and the significance of cytology in selected taxa. Am J Bot. 1978;65:236–42.
Chennaveeraiah MS. Chromosome number and secondary association in Bacopa monnieri (Linn.) Pennell. Proc 40th Indian Sci Congr. Part 3. 1953;106–7.
Gao W, Lam W, Zhong S, Kaczmarek C, Baker DC, Cheng YC. Novel mode of action of tylophorine analogs as antitumor compounds. Cancer Res. 2004;64:678–88.
Gellert E. The indolizidine alkaloids. J Nat Prod. 1982;45:50–73.
Govindarajan T, Subramanian D. Karyomorphological studies in south Indian Acanthaceae. Cytologia. 1983;48:491–504.
Iqbal M, Datta AK. Cytogenetic studies in Withania somnifera (L.) Dun. (Solanaceae). Cytologia. 2007;72:43–7.
King M. Species evolution: the role of chromosome change. Cambridge: Cambridge University Press; 1993.
Kumar A, Mir BA, Sehgal D, Dar TH, Koul S, Kaul MK, et al. Utility of a multidisciplinary approach for genome diagnostics of cultivated and wild germplasm resources of medicinal Withania somnifera, and the status of new species, W. ashwagandha, in the cultivated taxon. Plant Syst Evol. 2011;291:141–51.
Levan A, Fredga K, Sandberg AA. Nomenclature for centromeric position on chromosomes. Hereditas. 1964;52:201–20.
Lewis WH, Stripling HL, Ross RG. Chromosome numbers for some angiosperms of the southern United States and Mexico. Rhodora. 1962;64:147–61.
Madhavadian P. Chromosome numbers in South Indian Solanaceae. Caryologia. 1968;21:343–7.
Mallet J. The genetics of biological diversity: from varieties to species. In: Gaston KJ, editor. Biodiversity: a biology of numbers and differences. UK: Blackwell Science; 1996. p. 13–47.
Raghavan RS. Chromosome numbers in Indian medicinal plants III. Proc Indian Acad Sci. 1959;49:239–44.
Ray AB, Gupta M. Withasteroids, a growing group of naturally occurring steroidal lactones. Prog Chem Org Nat Prod. 1994;63:1–106.
Sarkar AK, Datta N, Chatterjee U, Datta R. In IOPB chromosome number reports XLII. Taxon. 1973;25:631–49.
Sarkar AK, Datta N, Chatterjee U. In chromosome number reports LXVII. Taxon. 1980;29:347–67.
Sreedevi P, Namboodiri AN. In IOPB chromosome number reports LVI. Taxon. 1977;26:257–74.
Srivastava S, Lavania UC, Mishra NK, Basu S. Chromosome behaviour in diploid and its bearing on tetraploid meiosis in Bacopa monnieri (L) Pennell. Nucleus. 2002;45:57–60.
Stebbins GL. Chromosomal evolution in higher plants. London: Edward Arnold; 1971.
Vohora SB, Khanna T, Athar M, Ahmed B. Analgesic activity of bacosine, a new triterpene isolated from Bacopa monnieri. Fitoterapia. 1997;68:361–5.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Samaddar, T., Nath, S., Halder, M. et al. Karyotype analysis of three important traditional Indian medicinal plants, Bacopa monnieri, Tylophora indica and Withania somnifera . Nucleus 55, 17–20 (2012). https://doi.org/10.1007/s13237-012-0048-2
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13237-012-0048-2