Phylogenetic Co-Occurrence of ExoR, ExoS, and ChvI, Components of the RSI Bacterial Invasion Switch, Suggests a Key Adaptive Mechanism Regulating the Transition between Free-Living and Host-Invading Phases in Rhizobiales

• Mary Ellen Heavner,

  Affiliation Biochemistry Program, The Graduate Center, City University of New York, New York, New York, United States of America

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• Wei-Gang Qiu,

  Affiliation Biological Sciences Department, Hunter College, City University of New York, New York, New York, United States of America

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• Hai-Ping Cheng

  * E-mail: haiping.cheng@lehman.cuny.edu

  Affiliations Biochemistry Program, The Graduate Center, City University of New York, New York, New York, United States of America, Biological Sciences Department, Lehman College, City University of New York, Bronx, New York, United States of America

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