Transcriptome reveals the effect of crossbreeding Mongolian and Holstein cattle with Simmental cattle on organismal metabolism

Genetic improvement of beef cattle plays an important role in beef quality.The results showed that the blood glucose levels of the crossbred, genetically improved SM and SH groups were significantly higher than that of the S group. Compared with the S group, there were 49 differentially expressed genes (DEGs) in the SM group, of which 18 genes were up-regulated and 31 genes were down-regulated; and 1031 DEGs in the SH group, of which 251 genes were up-regulated and 780 genes were down-regulated.