Abstract
Boerhavia diffusa is extensively used in herbal medicines as well as in the Ayurvedic system, because it contains a set of clinically important compounds. In the present study, the genetic variability in Boerhavia diffusa between accessions of different geographical origin within the Indian territory is assessed through random amplified polymorphic DNA (RAPD) markers. Twenty-eight accessions of Boerhavia were screened with eighteen primers of which nine were found to be the most informative. The degree of polymorphism was found to be high in accessions collected from different places of Uttar Pradesh (Set II) in comparison to other states of India (Set I). A relatively lower level of polymorphism was recorded in accessions collected from diverse locations around Lucknow (Set III). Accessions from neighbouring geographical regions exhibited more similarity than those from distant regions (as revealed by the set I analysis). Certain diagnostic markers may be correlated with morphological character(s) such as plant type. BDL appeared most distinct and divergent from the rest of the accessions and the BDJ plant in set II also showed least similarity estimate. Fragments of 5.62 Kb and 4.47 Kb with primer GN59 was found to be unique for BDP and BD2 having ovate leaf character, whereas ovoid leaf genotype exhibited 0.79 Kb (GN34 primer) fragment. Similarly a unique band type (0.35 Kb) with primer GN83 was present in BDL and BD1 that share light pink flower. Jaccard's, and Nei and Li similarity coefficient values amongst the accessions were in the range of 0.22 to 0.89 and 0.33 to 0.93, respectively. Association of RAPD markers with the leaf characteristics, flower colour as well as with geographical locations has been made. This shows that RAPD markers are also useful for the study of genetic structure of Boerhavia populations.
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Shukla, N., Sangwan, N., Misra, H. et al. Genetic diversity analysis in Boerhavia diffusa L. of different geographic locations in India using RAPD markers. Genetic Resources and Crop Evolution 50, 587–601 (2003). https://doi.org/10.1023/A:1024407314784
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DOI: https://doi.org/10.1023/A:1024407314784