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A Unique Midgut-Associated Bacterial Community Hosted By The Cave Beetle Cansiliella Servadeii (Coleoptera: Leptodirini) Reveals Parallel Phylogenetic Divergences From Universal Gut-Specific Ancestors, Maurizio G. Paoletti, Luca Mazzon, Isabel Martinez-Sañudo, Mauro Simonato, Mattia Beggio, Angelo Leandro Dreon, Alberto Pamio, Mauro Brilli, Luca Dorigo, Annette Summers Engel, Alessandra Tondello, Barbara Baldan, Giuseppe Concheri, Andrea Squartini
A Unique Midgut-Associated Bacterial Community Hosted By The Cave Beetle Cansiliella Servadeii (Coleoptera: Leptodirini) Reveals Parallel Phylogenetic Divergences From Universal Gut-Specific Ancestors, Maurizio G. Paoletti, Luca Mazzon, Isabel Martinez-Sañudo, Mauro Simonato, Mattia Beggio, Angelo Leandro Dreon, Alberto Pamio, Mauro Brilli, Luca Dorigo, Annette Summers Engel, Alessandra Tondello, Barbara Baldan, Giuseppe Concheri, Andrea Squartini
Earth and Planetary Sciences Publications and Other Works
Background
Cansiliella servadeii (Coleoptera) is an endemic troglobite living in deep carbonate caves in North-Eastern Italy. The beetle constantly moves and browses in its preferred habitat (consisting in flowing water and moonmilk, a soft speleothem colonized by microorganisms) self-preens to convey material from elytra, legs, and antennae towards the mouth. We investigated its inner and outer microbiota using microscopy and DNA-based approaches.
Results
Abundant microbial cell masses were observed on the external appendages. Cansiliella’s midgut is fully colonized by live microbes and culture-independent analyses yielded nearly 30 different 16S phylotypes that have no overlap with the community composition of …