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Bibliographic Details
Main Author:	Alejandra Murillo-Rios
Format:	Artículo científico
Language:	es
Published:	Universidad de Costa Rica 2023
Subjects:	Biología endogamia heterocigosidad Pargo mancha rosado diversidad genética
Online Access:	https://www.redalyc.org/articulo.oa?id=44975700039 https://www.redalyc.org/journal/449/44975700039/ https://www.redalyc.org/journal/449/44975700039/html/ https://www.redalyc.org/journal/449/44975700039/44975700039.epub https://www.redalyc.org/journal/449/44975700039/movil
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Variabilidad genética del pez Lutjanus guttatus (Perciformes: Lutjanidae) mediante el uso de microsatélites en Costa Rica Alejandra Murillo-Rios Silvia Ramirez-Flores Juan-Esteban Barquero-Chanto Nelson Peña-Navarro Ricardo Pérez-Enríquez Biología endogamia heterocigosidad Pargo mancha rosado diversidad genética Introducción: El pargo mancha es un pez marino de alto consumo e interés comercial en Costa Rica que está sometido a una fuerte presión pesquera, la cual puede afectar la diversidad genética y generar problemas por depresión endogámica. Objetivo: Evaluar el estado genético de la población de Lutjanus guttatus mediante el uso microsatélites. Métodos: Se recolectaron muestras entre el 2018 y 2019 y se estudiaron 44 individuos de cada una de las localidades del Golfo de Nicoya y Golfo Dulce. Se realizó la extracción de ADN y la amplificación de diez loci con microsatélites mediante PCR, para la determinación del genotipo, análisis de diversidad genética y estructura poblacional. Resultados: Los parámetros de diversidad indican un elevado polimorfismo asociado con un alto número de alelos obtenidos por locus, pero con bajos niveles de heterocigosidad observada en comparación con la esperada (Ho= 0.774 y 0.800 y He= 0.948 y 0.954 para Golfo de Nicoya y Golfo Dulce, respectivamente). No hay evidencia suficiente para decir que las dos poblaciones son distintas (FST= 0.00264, P > 0.05). La desviación del Equilibrio de Hardy-Weinberg indica la posible mezcla de organismos de origen distinto a los del medio silvestre. Conclusiones: L. guttatus tiene niveles altos de diversidad genética, no hay evidencia de diferenciación en subpoblaciones genéticas, lo que en manejo pesquerías se considera una sola población panmíctica. La posible mezcla de individuos de origen distinto al silvestre sugiere la presencia de organismos de un programa de repoblación o de cultivos comerciales en la región. El uso de marcadores genéticos se recomienda para el monitoreo, además, en programas de repoblación y evaluar su efecto. 2023 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44975700039 https://www.redalyc.org/journal/449/44975700039/ https://www.redalyc.org/journal/449/44975700039/html/ https://www.redalyc.org/journal/449/44975700039/44975700039.epub https://www.redalyc.org/journal/449/44975700039/movil 10.15517/rev.biol.trop..v71i1.53380 es http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.1 Vol.71

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