Introduction.- Genetic operation system of lactic acid bacteria and its applications.- Comparative Genomic Analyses of Lactic Acid Bacteria.- Transcriptomics of lactic acid bacteria.- Proteomics of lactic acid bacteria.- Metabolomics of lactic acid bacteria.- Functional evaluation model for Lactic acid bacteria.- Lactic acid bacteria and intestinal health.- Lactic acid bacteria and host immunity.- Widely used lactic acid bacteria strains with excellent...