Different pig populations have experienced distinct selective pressures during their history of adaptation and breeding. Indigenous pigs often retain genomic signatures associated with environmental adaptation, including adaptation to high altitude, hypoxia, low temperature, and hot climates, whereas commercial breeds have been intensively selected for economically important traits such as carcass growth, reproductive performance, and meat quality traits. These selective processes have acted on both coding variants and regulatory elements, reshaping complex biological pathways across populations. Below, we summarize genomic intervals collected from previous studies together with their functional annotations for selection-related traits.