On the difficult evolutionary transition from the free-living lifestyle to obligate symbiosis

• Phuong Linh Nguyen ,

  Roles Conceptualization, Formal analysis, Investigation, Software, Writing – original draft

  * E-mail: lpnguyen@biologie.ens.fr

  Current address: Institut d’écologie et des sciences de l’environnement de Paris, Paris, France

  ¶‡ These authors also contributed equally to this work.

  Affiliation Institut de Biologie de l’École Normale Supérieur, Paris, France

  http://orcid.org/0000-0001-6483-4248

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• Minus van Baalen

  Roles Formal analysis, Supervision, Writing – review & editing

  ¶‡ These authors also contributed equally to this work.

  Affiliation Institut de Biologie de l’École Normale Supérieur, Paris, France

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