Identificación molecular de escarabajos (Coleoptera) forensicamente significativos en China basados en el gen COI
Contenido principal del artículo
La identificación precisa de especies de insectos juega un papel esencial en la estimación del intervalo postmortem (IPM), especialmente cuando la información sobre el fenómeno postmortem no es disponible. Los escarabajos sarcosaprófagos infestan y colonizan los restos humanos y animales en la etapa tardía de descomposición y su similitud morfológica es un gran desafío para los entomólogos forenses ya que las claves taxonómicas existentes pueden ser incompletas o difíciles para los no especialistas. Se requiere un método fácil y preciso para la identificación a nivel de especie en cualquier estadio de vida. En este estudio se exploró la utilidad de una región del gen mitocondrial COI de 272 bases para identificar escarabajos de importancia forense. Se capturaron 24 ejemplares provenientes de 14 localidades de nueve provincias de China. El análisis de conglomerados de las secuencias por el método de ligamiento promedio no ponderado (UPGMA) mostró que todos los especímenes fueron apropiadamente asignados a seis especies con fuerte similitud lo que demuestra la posibilidad de separar especies congenéricas con este fragmento corto de COI. Estos resultados serán instrumentales en la implementación de una base de datos china de escarabajos importantes en el área forense.
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