Publications by authors named "S Siozios"
Article Synopsis
- Endosymbiosis occurs when a microbe lives within a host, playing a key role in the evolution of complex life forms but its transition processes are not well understood.
- The study examines the genus Arsenophonus, revealing that strains shifting from horizontal to vertical transmission have larger genomes due to the acquisition of new genetic features and the loss of defense systems against viral attacks.
- The research suggests that endosymbiosis leads to a mix of genome expansion and eventual reduction as the microbe adapts to its host, enabling rapid genetic innovation before settling into a more stable state.
Symbiotic microbes from the genus Megaira' () are known to be common associates of algae and ciliates. However, genomic resources for these bacteria are scarce, limiting our understanding of their diversity and biology. We therefore utilize Sequence Read Archive and metagenomic assemblies to explore the diversity of this genus.
View Article and Find Full Text PDFVertically transmitted "Heritable" microbial symbionts represent an important component of the biology and ecology of invertebrates. These symbioses evolved originally from ones where infection/acquisition processes occurred within the environment (horizontal transmission). However, the pattern of evolution that follows transition from horizontal to vertical transmission is commonly obscured by the distant relationship between microbes with differing transmission modes.
View Article and Find Full Text PDFThe genus has been traditionally considered to comprise heritable bacterial symbionts of arthropods. Recent work has reported a microbe related to the type species as infecting the honey bee, . The association was unusual for members of the genus in that the microbe-host interaction arose through environmental and social exposure rather than vertical transmission.
View Article and Find Full Text PDFBacterial endosymbionts are found in multiple arthropod species, where they play crucial roles as nutritional symbionts, defensive symbionts or reproductive parasites. Recent work has highlighted a new clade of heritable microbes within the gammaproteobacteria that enter into both obligate and facultative symbioses, with an obligately required unculturable symbiont recently given the name Symbiopectobacterium. In this study, we describe a culturable rod shaped non-flagellated bacterial symbiont from this clade isolated from the leafhopper .
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