Polymerase chain reaction
Genetic diversity for the different "L. paracasei" genomes was assessed using 多位点序列分型 (MLST) and (AFLP). MLST is a technique used for classifying microbes by the use of DNA fragments from essential genes of the organism. AFLP is a 聚合酶链式反应 (PCR) tool used in 遺傳指紋分析 to amplify a desired 脱氧核糖核酸 fragment with the use of 限制酶 and 配體.