Mitochondrial DNA sequence of the hybrid of Duroc (♂) × [Landrace (♂) × Yorshire (♀)] pig.
Duroc (♂) × [Landrace (♂) × Yorshire (♀)] (D × LY) pig is the popular hybrid pigs in order to make the most use of the heterosis in the world. In this study, the complete nucleotide sequence of D × LY pig mitochondrial genome was determined for the first time. Sequence analysis showed that the genome structure was in accordance with other pig breeds. It contained 22 tRNA genes, 2 ribosomal RNA genes, 13 protein-coding genes and 1 control region (D-loop region). The complete mitochondrial genome sequence of the D × LY pig provides an important data set for further study in genetic mechanism.