title: Genetic mapping with a thiamine-requiring auxotroph of Escherichia coli K-12 defective in thiamine phosphate pyrophosphorylase.
mesh_terms: D002874:Chromosome Mapping; D003433:Crosses, Genetic; D004926:Escherichia coli / Q000201:enzymology / Q000378:metabolism; D005827:Genetics, Microbial; D008967:Molecular Biology; D012641:Selection, Genetic; D013831:Thiamine / Q000096:biosynthesis*; D014166:Transferases / Q000378:metabolism
chemical_list: D014166:Transferases; D013831:Thiamine