Parallel Evolution and Horizontal Gene Transfer of the pst Operon in Firmicutes from Oligotrophic Environments

Alejandra Moreno-Letelier1, Gabriela Olmedo, Luis E Eguiarte

  • 1Departamento de Ecologia Evolutiva, Instituto de Ecologia, Universidad Nacional Autónoma de México, Apdo. Postal 70-275, Ciudad Universitaria, 04510 México D. F., Mexico.

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