Tilapia is a vital protein source for many countries, and it is cultured in over 120 countries. The global Tilapia production has stably increased in the last decade. However, in many farming systems the production performance of the optimized strains is much lower than what potentially can be achieved. One important factor is adaptation, which means the ability of an individual to adapt to the changing environment. Based on investigating the situation of most productive countries for Tilapia in southeast Asia, there are two essential environmental characteristics that mainly attribute to the variation in production, namely oxygen availability (aeration) and salinity of the water. Necessary solutions to decrease the production losses in Tilapia require closing the knowledge gap regarding the genetic basis of adaptation to help efficient selective breeding.
The objective of the current project is to unravel the genomic architecture underlying salinity and hypoxia adaptation in Tilapia and to explain genomic signatures of selection to facilitate the identification of adaptive trait and animal production improvement.