Metabarcoding: una herramienta prometedora para el estudio de la ecología trófica de peces mexicanos



Palabras clave:

Biodiversidad, Código de barras, Dietas, Genes, Nicho trófico


El papel de los peces en la dinámica trófica de los ecosistemas acuáticos se ha estudiado usando diferentes métodos que permiten determinar su dieta y posición trófica (inspección visual del contenido estomacal y heces, isótopos estables, secuenciación de ADN). Con los avances tecnológicos en la secuenciación de alto rendimiento del ADN, el uso del método de metabarcoding se ha incrementado en los últimos años, demostrando tener mayor precisión y alcance taxonómico que otros métodos, además de que permite el análisis simultáneo de un mayor número de muestras en un menor tiempo. En esta revisión, se describen los pasos del método de metabarcoding, discutiendo sus ventajas y limitaciones, así como las alternativas experimentales y analíticas propuestas para atender dichas limitaciones. Además, se presenta una síntesis del estado del conocimiento del método de metabarcoding aplicado al análisis de la ecología trófica de peces para entender los alcances y las limitaciones de este método en México.

Biografía del autor/a

Nancy Calderón-Cortés, Universidad Nacional Autónoma de México

Profesor Ordinario de Carrera Titular A de T.C., Escuela Nacional de Estudios Superiores Unidad Morelia. Laboratorio de Ecología Molecular.


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