Evolution of the Secondary Symbiont “
            <i>Candidatus</i>
            Serratia symbiotica” in Aphid Species of the Subfamily Lachninae

Lamelas, Araceli; Pérez‐Brocal, Vicente; Gómez-Valero, Laura; Gosalbes, María José; Moya, Andrés; Latorre, Amparo

doi:10.1128/aem.00022-08

Cited by 76 publications

(119 citation statements)

References 26 publications

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“…The cedar aphid Cinara cedri harbors "Candidatus Serratia symbitotica" as a secondary endosymbiont. Although this bacterium is a facultative symbiont in other aphid species, recent studies support the hypothesis that there has been long coevolution of the two symbionts in C. cedri (9). Furthermore, "Ca.…”

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confidence: 90%

The Striking Case of Tryptophan Provision in the Cedar Aphid Cinara cedri

et al. 2008

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Buchnera aphidicola BCc has lost its symbiotic role as the tryptophan supplier to the aphid Cinara cedri. We report the presence of a plasmid in this endosymbiont that contains the trpEG genes. The remaining genes for the pathway (trpDCBA) are located on the chromosome of the secondary endosymbiont “Candidatus Serratia symbiotica.” Thus, we propose that a symbiotic consortium is necessary to provide tryptophan.

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confidence: 90%

The Striking Case of Tryptophan Provision in the Cedar Aphid Cinara cedri

et al. 2008

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“…Serratia symbiotica has been detected in different aphid species and was diverged into two phylogenetic clades (cluster A and B) based on the 16 rRNA gene (Lamelas et al, 2008). Furthermore, it may undergo the transition from facultative symbiont to obligate symbiont (Pérez-Brocal et al, 2006;Lamelas et al, 2008;Manzano-Marín and Latorre, 2014).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Furthermore, it may undergo the transition from facultative symbiont to obligate symbiont (Pérez-Brocal et al, 2006;Lamelas et al, 2008;Manzano-Marín and Latorre, 2014). For instance, one of its cluster (cluster B) has become a co-obligate endosymbiont of B. aphidicola as the primary symbiont in the aphid Cinara cedri…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…For example, the genome of S. symbiotica decayed dramatically compared with free-living relatives of the same genus through deletions, pseudogenes and rearrangements (Burke and Moran, 2011). B. aphidicola has experienced a reductive process of genome size, retaining only essential genes for its specialized lifestyle (Gil et al, 2002) and might be replaced by the coexisting facultative symbiont (Gómez-Valero et al, 2004;Pérez-Brocal et al, 2006;Lamelas et al, 2008;. To conclude, the endosymbionts may go through a long term evolutionary transition from free-living microbe in the early stage to obligate mutualism in host.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

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Nine facultative endosymbionts in aphids. A review

Guo

Hatt

et al. 2017

Journal of Asia-Pacific Entomology

104

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Aphids are frequently engaged in mutualistic associations with endosymbionts.Symbionts are bacterial or fungal microorganisms that can be obligate or facultative to aphids. Research showed facultative (or secondary) symbionts have numerous effects on their host aphids such as resistance to heat shock, parasitoids and fungus etc., which may consequently promote a co-evolution between symbionts and hosts. However, this symbiotic relation may be affected by several factors, such as the ability of symbionts to spread from aphids to others within and across populations, and the cost of infections for hosts. Moreover, aphid-symbionts interactions may be affected by aphid living environment such as its host plant, the presence of natural enemies or the temperature. Here we firstly described the functions of nine facultative symbionts (Serratia symbiotica, Hamiltonella defensa, Regiella insecticola, Rickettsia, Rickettsiella, PAXS (pea aphid X-type symbiont), Spiroplasma, Wolbachia and Arsenophonus) studied in aphids one by one, and discussed the associations between these symbionts and aphids, plants and environment. We aim to have a better knowledge of the roles the facultative symbionts play in aphid biology, ecology and evolution, which we believe can provide new inspirations for aphid control.

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“…A particular feature of C. cedri is the massive presence of the secondary endosymbiont "Candidatus Serratia symbiotica," which has been reported to have become an obligate symbiont in this aphid (17,22), whereas it is a facultative symbiont in other aphid species (30,34). Indeed, there are recent reports of a close endosymbiotic consortium that involves B. aphidicola and "Ca.…”

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confidence: 99%

New Clues about the Evolutionary History of Metabolic Losses in Bacterial Endosymbionts, Provided by the Genome of Buchnera aphidicola from the Aphid Cinara tujafilina

Lamelas

Gosalbes

Moya

et al. 2011

Appl Environ Microbiol

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The symbiotic association between aphids (Homoptera) and Buchnera aphidicola (Gammaproteobacteria) started about 100 to 200 million years ago. As a consequence of this relationship, the bacterial genome has undergone a prominent size reduction. The downsize genome process starts when the bacterium enters the host and will probably end with its extinction and replacement by another healthier bacterium or with the establishment of metabolic complementation between two or more bacteria. Nowadays, several complete genomes of Buchnera aphidicola from four different aphid species (Acyrthosiphon pisum, Schizaphis graminum, Baizongia pistacea, and Cinara cedri) have been fully sequenced. C. cedri belongs to the subfamily Lachninae and harbors two coprimary bacteria that fulfill the metabolic needs of the whole consortium: B. aphidicola with the smallest genome reported so far and "Candidatus Serratia symbiotica." In addition, Cinara tujafilina, another member of the subfamily Lachninae, closely related to C. cedri, also harbors "Ca. Serratia symbiotica" but with a different phylogenetic status than the one from C. cedri. In this study, we present the complete genome sequence of B. aphidicola from C. tujafilina and the phylogenetic analysis and comparative genomics with the other Buchnera genomes. Furthermore, the gene repertoire of the last common ancestor has been inferred, and the evolutionary history of the metabolic losses that occurred in the different lineages has been analyzed. Although stochastic gene loss plays a role in the genome reduction process, it is also clear that metabolism, as a functional constraint, is also a powerful evolutionary force in insect endosymbionts.

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Evolution of the Secondary Symbiont “ Candidatus Serratia symbiotica” in Aphid Species of the Subfamily Lachninae

Cited by 76 publications

References 26 publications

The Striking Case of Tryptophan Provision in the Cedar Aphid Cinara cedri

The Striking Case of Tryptophan Provision in the Cedar Aphid Cinara cedri

Nine facultative endosymbionts in aphids. A review

New Clues about the Evolutionary History of Metabolic Losses in Bacterial Endosymbionts, Provided by the Genome of Buchnera aphidicola from the Aphid Cinara tujafilina

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