Micropropagation and assessment of genetic fidelity of Decalepis hamiltonii Wight & Arn using RAPD markers

Abstract

Somaclonal variation in micropropagated plants improves crops. Genetic transformation research relies on micropropagated plant genetic integrity. Somaclonal variation frequently occurs in micropropagation, prompting an investigation of plant genetic stability. The high number of shoot buds was seen when Decalepis hamiltonii shooting tip explants were inoculated with reversed polarity in Murashige and Skoog (MS) medium supplemented with 0.5 mg L-1 benzylaminopurine (BAP). The shoot buds increased in length on an MS medium supplemented with 0.5 mg L-1 Benzylaminopurine (BAP) and 0.1 mg L-1 indole-3-acetic acid (IAA). The lengthened shoots were established in Murashige and Skoog (MS) medium supplemented with 1 mg L-1 Indole-3-butyric Acid (IBA). Well-rooted plants underwent greenhouse hardening. Micropropagated and seedpropagated plants have similar physical features. Regenerated plant genetic stability was assessed using ten primers in a Random Amplified Polymorphic DNA (RAPD) assay. Eighty-five bands were identified. Monomorphic features and original-type clones were found in field-grown plants and bands. The regeneration approach might help study D. hamiltonii micropropagation