A chitinase A gene (chiA) was successfully amplified by PCR using a pair of specific primers from Serratia marcescens Q901, and cloned into pUC19 vector.

• 用设计的特异性引物和PCR技术,成功地从粘质沙雷氏菌(Serratia marcescens)Q901基因组DNA中扩增并克隆几丁质酶A基因(chiA)序列(GenBank登录号:AY433954)。