Part I. Transfer of genetic information, nuclear symbiosis, and cellular differentiation
1. Title: "Viral Symbiosis in the Origins and Evolution of Life with a Particular Focus on thePlacental Mammals"Authors: Frank RyanCorresponding author: Frank Ryane-mail: F.Ryan@sheffield.ac.uk
2. Title: "Gene Transfer Agents in Symbiotic Microbes"Authors: Steen Christensen and Laura R. SerbusCorresponding author: Laura R. Serbuse-mail: Lserbus@fiu.edu
3. Title: "Evolution from free-living bacteria to endosymbionts of insects: genomic changes and theimportance of the chaperonin GroEL".Authors: Beatriz Sabater-Munoz and Christina ToftCorresponding author: Beatriz Sabater-Munoze-mail: b.sabater.munyoz@gmail.com
4. Title: "Epidemiology of nucleus-dwelling Holospora: infection, transmission, adaptation, andinteraction with Paramecium"Authors: Martina Schrallhammer & Alexey PotekhinCorresponding author: Martina Schrallhammere-mail: martina.schrallhammer@biologie.uni-freiburg.de
5. Title: "Trends in symbiont-induced host cellular differentiation"Authors: Shelbi L Russell and Jennie Ruelas CastilloCorresponding author: Shelbi L Russelle-mail: shelbilrussell@gmail.com
Part II. Origin, adaptations and evolutionary aspects of symbiosis
6. Title: "We're in this together: Sensation of the host cell environment by endosymbiotic bacteria"Authors: Cory D. Dunn, Tamara Somborac, and Bala Anı AkpınarCorresponding author: Cory D. Dunne-mail: cory.dunn@helsinki.fi
7. Title: "Phenotype Heritability in Holobionts: An Evolutionary Model"Authors: Saul Huitzil, Santiago Sandoval-Motta, Alejandro Frank, Maximino AldanaCorresponding author: Aldana Me-mail: max@icf.unam.mx
8. Title: "The role of constructive neutral evolution in the development of complexity fromsymbioses: A microbe-centric view"Author: Ramakrishnan SitaramanCorresponding author: Ramakrishnan Sitaramane-mail: minraj@gmail.com
9. Title: "Chemiosmosis, evolutionary conflict, and eukaryotic symbiosis"Authors: Neil W. BlackstoneCorresponding author: Neil W. Blackstonee-mail: neilb@niu.edu10. Title: "Symbiotic origin of apoptosis"Authors: Szymon KaczanowskiCorresponding author: Szymon Kaczanowskie-mail: szymon@ibb.waw.pl
11. Title: "The puzzling conservation and diversification of lipid droplets from bacteria toeukaryotes"Authors: Josselin Lupette, Eric MarechalCorresponding authors: Josselin Lupette and Eric Marechale-mail: lupettej@msu.edueric.marechal@cea.fr
Part III. Evolution and role of symbiosis in photosynthesis and nitrogen fixation
12. Title: "Evolution of Photosynthetic Eukaryotes; Current Opinion, Perplexity and a NewPerspective"Authots: Shinichiro Maruyama, Eunsoo KimCorresponding authors: Maruyama S and Kim E.e-mail: maruyama@tohoku.ac.jp; ekim1@amnh.org
13. Title: "The photosynthetic adventure of Paulinella spp."Authors: Przemyslaw Gagat, Katarzyna Sidorczuk, Filip Pietluch, Pawel MackiewiczCorresponding authors: Pawel Mackiewicz and Przemyslaw Gagate-mail: pamac@smorfland.uni.wroc.plprzemyslaw.gagat@uwr.edu.pl
14. Title: "The evolutionary aspects of legume nitr