ABSTRACT
Development of a marker provides a suitable and an important parameter for quality control of plants and herbal formulations. Selection of biological markers is crucial for the quality control of herbal medicines, including authentication of genuine species, harvesting the best quality raw materials, evaluation of post-harvesting handling, assessment of intermediates and finished products, and detection of harmful or toxic ingredients. DNA markers as a new pharmacognostic tool. Various types of DNA-based molecular techniques are utilized to evaluate DNA polymorphism. DNA-based molecular markers have proven their utility in fields like taxonomy, physiology, embryology, and genetics. Selection of chemical markers is crucial for the quality control of herbal medicines, including authentication of genuine species, harvesting the best quality raw materials, evaluation of post harvesting handling, assessment of intermediates and finished products, and detection of harmful or toxic ingredients. Therapeutic components possess the direct therapeutic effects of an herbal medicine.
