Identification of Two Widely Separated Loci Conferring Nicotinic Acid Dependence on Wild-Type Shigella flexneri 2a

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RESUMO

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.

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