ArticleForensic toxicology2026
Identification of toxic plants from poisonous samples using massively parallel sequencing.
Article in Forensic toxicology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeSome toxic plants have strong morphological similarities with edible wild plants. Therefore, poisoning often occurs due to accidental ingestion. It is important to identify poisonous plants in edible plant mixtures, even if the samples have been digested. In the present study, we developed a method for genus and species identification in mixed samples using massive parallel sequencing (MPS).
methodsVeratrum oxysepalum and Colchicum autumnale are the most common causative plants of such accidents and their morphological features are similar to those of the edible Hosta sieboldiana. In this study, we used V. oxysepalum and C. autumnale as the target poisonous plant species. We developed and optimized an MPS analysis method for trnL and rbcL regions that are commonly used in plant species identification. Initially, DNA from poisonous plants (V. oxysepalum and C. autumnale) and edible plants (H. sieboldiana) were mixed in various ratios and analyzed using MPS. Next, we prepared cooked materials and simulated gastric contents from V. oxysepalum, C. autumnale, and H. sieboldiana and analyzed them using MPS.
resultsWe detected both poisonous and edible plant DNA when mixed in equal amounts. Poisonous plants were also detected in cooked or simulated gastric acid content. These results suggest that our method can be used to identify the genera or species of plants present in cooked materials and simulated gastric contents.
conclusionsThese results indicate that MPS techniques are useful for the forensic analysis of plant materials.
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