Fecha de publicación: 20/04/2016 Fuente: WIPO "bee" The invention relates to the biotechnology field, in particular to a gene and application thereof. Whole genome sequencing is adopted for carrying out whole genome re-sequencing on a large number of western black bee individuals, and the special gene of western black bees is obtained. The gene has the important role in differentiation of the western black bees and bees in other regions and the adaptive evolution of the western black bees for the local environment. The Foxo gene or the Ebony gene can be used for identifying the western black bees and other species, and can also be used for researching the species resource diversity of bees and researching cold-resist genes. The research gap of researchers in China in the western black bee field can be filled.