Foster J W, Holley E A
J Bacteriol. 1981 Oct;148(1):394-6. doi: 10.1128/jb.148.1.394-396.1981.
The nicotinic acid phosphoribosyltransferase locus pncB was located on the Salmonella typhimurium linkage map counterclockwise relative to pyrC. P22 and P1 transductional analyses revealed linkage of pncB with aroA and pyrD, indicating a pncB map position of approximately 20 map units. The results of these cotransduction experiments also indicated that the genetic map distance between gal and pyrD is greater than the published 2.2 map units.
烟酰胺磷酸核糖转移酶基因座pncB位于鼠伤寒沙门氏菌的连锁图谱上,相对于pyrC呈逆时针方向。P22和P1转导分析表明pncB与aroA和pyrD连锁,表明pncB的图谱位置约为20个图谱单位。这些共转导实验的结果还表明,gal和pyrD之间的遗传图谱距离大于已公布的2.2个图谱单位。