Identification of Two Widely Separated Loci Conferring Nicotinic Acid Dependence on Wild-Type Shigella flexneri 2a.
Two widely separated loci causing the nicotinic acid dependence of wild-type Shigella flexneri 2a were identified by intergeneric mating procedures and found to be closely linked to the gal and fuc chromosomal determinants.
Walter Reed Army Institute of Research, Washington, D.C. 20012.
P
P
Gemski
S B
SB
Formal
L S
LS
Baron