Holosporaceae

Holosporaceae
Scientific classification
Kingdom:	Bacteria
Phylum:	Proteobacteria
Class:	Alphaproteobacteria
Subclass:	Caulobacteridae
Order:	Holosporales
Family:	Holosporaceae
Genera
Caedibacter Holospora Lyticum Odyssella Paracedibacter Pseudocaedibacter Pseudolyticum Tectibacter

The Holosporaceae are a family of bacteria, formerly included in the order Rickettsiales, but now raised to their own order, the Holosporales. The member Holospora is an intracellular parasite found in the unicellular protozoa Paramecium.^[1]

The genera Caedibacter, Holospora, Lyticum, Odyssella, Pseudocaedibacter, Pseudolyticum and Tectibacter are Incertae sedis.^[1]

Genome

Draft genome sequences are available for three Holospora species ^[2] and Odyssella thessalonicensis ^[3] .^[4]

Phylogeny of Rickettsiales

Magnetococcidae Magnetococcales Magnetococcaceae Magnetococcus marinus Caulobacteridae Rhodospirillales, Sphingomonadales, Rhodobacteraceae, Rhizobiales, etc. Holosporales Rickettsidae Pelagibacterales Pelagibacteraceae Pelagibacter subgroups Ib, II, IIIa, IIIb, IV and V Mitochondria Anaplasmataceae Ehrlichia Anaplasma Wolbachia Neorickettsia Midichloriaceae Midichloria Rickettsiaceae Rickettsia

Robust 16S + 23S phylogeny of Rickettsidae from Ferla et al. (2013)[5]

References

1. Garrity, George M.; Brenner, Don J.; Krieg, Noel R.; Staley, James T. (eds.) (2005). Bergey's Manual of Systematic Bacteriology, Volume Two: The Proteobacteria, Part C: The Alpha-, Beta-, Delta-, and Epsilonproteobacteria. New York, New York: Springer. ISBN 978-0-387-24145-6.
2. Dohra; et al. (2014). "Draft genome sequences of three Holospora species (Holospora obtusa, Holospora undulata, and Holospora elegans), endonuclear symbiotic bacteria of the ciliate Paramecium caudatum.". FEMS Microbiol Lett. 359 (1): 16–8. doi:10.1111/1574-6968.12577. PMID 25115770.
3. "'Candidatus Odyssella thessalonicensis' gen. nov., sp. nov., an obligate intracellular parasite of Acanthamoeba species.". Int J Syst Evol Microbiol 50 (1): 63–72. Jan 2000. doi:10.1099/00207713-50-1-63. PMID 10826788.
4. "Phylogenomic analysis of Odyssella thessalonicensis fortifies the common origin of Rickettsiales, Pelagibacter ubique and Reclimonas americana mitochondrion.". PLOS ONE 6 (9): e24857. 2011. doi:10.1371/journal.pone.0024857. PMC 3177885. PMID 21957463.
5. Ferla, M. P.; Thrash, J. C.; Giovannoni, S. J.; Patrick, W. M. (2013). "New rRNA gene-based phylogenies of the Alphaproteobacteria provide perspective on major groups, mitochondrial ancestry and phylogenetic instability". PLoS ONE 8 (12): e83383. doi:10.1371/journal.pone.0083383. PMC 3859672. PMID 24349502.

External links

• Holosporaceae J.P. Euzéby: List of Prokaryotic names with Standing in Nomenclature