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GENE TRANSFER IN CAULOBACTER CRESCENTUS: POLARIZED INHERITANCE OF GENETIC MARKERS
Recombination frequencies were determined for 15 independently isolated auxotrophs of C. crescentus crossed pairwise in all possible combinations. The results indicate that the mutants may be grouped into at least two types: "fertile" strains, which recombine with all other mutants at frequencies ranging from less than 10-6 to 3 × 10-2, and "nonfertile" strains which recombine with fertile strains at high frequencies and with other nonfertile strains at low or negligible frequencies. Severaldoi:10.1093/genetics/80.1.1 fatcat:u5xf5ygco5exzcbdhiih4mb7mi