Molecular markers in Aquaculture

Leader: Mª Jesús Zamorano (mariajesus.zamorano@

This research lines started in 1999 funded by several regional and national projects, establishing protocols to characterize microsatellites in sparid species, mainly in gilthead seabream. In the following years, the use of these markers was optimized by applying Multiplex PCRs and was developed in other aquaculture species, such as red porgy, meagre or redbanded seabream. Thus, a high number of panels of microsatellite multiplex PCRs have been established with potential use to genealogy reconstruction, management of natural genetic resources and even QTLs search.

In addition, several molecular markers for expression have been incorporated in recent years to support and complement other research lines in the GIA.

Currently, this research lines is focused on molecular markers (microsatellites or SNPs) to find QTLs associated to skeletal deformities with commercial interest or to another economically important trait. The whole gilthead seabream genetic map has been scanned by microsatellites, and both seabass and sole genetic maps are next target species in national and international research programs coordinated with other institutions.

The utilization of molecular markers as an additional tool in Genetic improvement programs and to help in decision making from a genetic point of view, in broodstock management and naturals resources management, are the main areas of interest of this research line.