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The genomic DNA isolation from mature leaf midrib is a tough job, because of the abundance of polysaccharides and secondary metabolites, which interferes with DNA isolation as well as polymerase chain reaction (PCR) studies. The leaf midrib of 3rd leaf from 3-moths old, ex-vitro developing banana [AAA, Dwarf Cavendish-Basrai (Sindhri banana)] plants (healthy and BBTV infected) was grinded in liquid...