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Sphingobium wenxiniae JZ-1 utilizes a wide range of pyrethroids and their metabolic product,3-phenoxybenzoate,as sources of carbon and energy.A mutant JZ-1 strain,MJZ-1,defective in the degradation of 3-phenoxybenzoate was obtained by successive streaking on LB agar.Comparison of the draft genomes of strains JZ-1 and MJZ-1 revealed that a 29,366-bp DNA fragment containing a putative angular dioxygenase gene cluster (pbaA1A2B) is missing in strain MJZ-1.