Ochman H, Groisman E A
Department of Biology, University of Rochester, New York 14627, USA.
Infect Immun. 1996 Dec;64(12):5410-2. doi: 10.1128/iai.64.12.5410-5412.1996.
We investigated the phylogenetic distribution of the SPI-1 and SPI-2 pathogenicity islands in Salmonella spp. SPI-1 was present in representatives of all eight subspecific groups, but no SPI-2-hybridizing sequences were detected in group V (S. bongori). Our data suggest that SPI-2 was acquired by S. enterica after its split from S. bongori.
我们研究了沙门氏菌属中SPI-1和SPI-2致病岛的系统发育分布。SPI-1存在于所有八个亚种组的代表菌株中,但在第五组(邦戈尔沙门氏菌)中未检测到SPI-2杂交序列。我们的数据表明,肠炎沙门氏菌在与邦戈尔沙门氏菌分离后获得了SPI-2。