Molecular Depiction of Thirteen Indian Toxic Plants with ITS Markers
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Abstract
Plant identification is an overwhelming task due to different biological attributes and great diversity in plant species. In the absence of physical markers, molecular techniques have become useful for the identification of species of origin of medicinal plant seeds, pastes, and formulations of suspected plants.
The ITS region of nuclear rRNA was amplified from thirteen different toxic plant species by using universal primer ITS 1 & 4. Nucleotide sequences of all selected plants were submitted in NCBI and accession numbers were acquired.
The results of this study give accurate identification of thirteen plant species and proved the ITS region of 18s-26s nuclear ribosome to be an important tool for phylogenetic analysis and species identification of plants. The sequence was aligned with top matched reference sequence and presented in Clustal Omega software for making a phylogenetic neighbour tree.
The significance of these findings is paramount in forensic toxicology scenarios especially when fragmentary plant material is found in the stomach/intestine and its morphological identification becomes impossible. In these circumstances, the PCR based molecular technique surely plays a significant role in solving complicated forensic cases.
Keywords
Forensic Science, Forensic Botany, ITS Region, Universal Primers
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