Diversity and genetic origin of introduced channel catfish (Ictalurus punctatus, Rafinesque, 1818) to central-west Mexico.

Diana Suárez-Salgado, José Herrera-Camacho, Ana Laura Lara-Rivera, Gaspar Manuel Parra-Bracamonte


DOI: https://doi.org/10.3856/vol44-issue3-fulltext-11

The channel catfish is an important aquaculture species in Mexico and occurs in traditional systems. The state of Tamaulipas has been the source of diverse populations of channel catfish in the country, although there is no documentary evidence. Therefore, the objective of this study was to confirm the genetic origin of populations of channel catfish (Ictalurus punctatus) of west central Mexico by microsatellite DNA markers. The study comprised six domestic populations from Michoacán, Zacatecas and Jalisco and two reference founder populations from Tamaulipas and Coahuila. The analysis was made with a panel of 13 microsatellite previously reported. Some parameters of diversity and population structure were evaluated. The six populations showed excess of heterozygotes and a coefficient endogamy FIS ≤ -0.014. The analysis of gene structure was determined by a paired comparison populations, and indicated the 98.24% of variation between individuals and 5.92% to variation among populations. The Bayesian analysis and frequency approach was identified the population of Tamaulipas as the most likely genetic origin of channel catfish populations currently used in the states of Michoacán, Zacatecas y Jalisco.


Suárez-Salgado D, Herrera-Camacho J, Lara-Rivera A, Parra-Bracamonte G. Diversity and genetic origin of introduced channel catfish (Ictalurus punctatus, Rafinesque, 1818) to central-west Mexico.. Lat. Am. J. Aquat. Res.. 2017;44(3). Available from: doi:10.3856/vol44-issue3-fulltext-11 [Accessed 24 Jan. 2019].
Suárez-Salgado, D., Herrera-Camacho, J., Lara-Rivera, A., & Parra-Bracamonte, G. (2017). Diversity and genetic origin of introduced channel catfish (Ictalurus punctatus, Rafinesque, 1818) to central-west Mexico.. Latin American Journal of Aquatic Research, 44(3). doi:http://dx.doi.org/10.3856/vol44-issue3-fulltext-11