Polyphyly of non‐bioluminescent <i>Vibrio fischeri</i> sharing a <i>lux</i>‐locus deletion

Wollenberg, Michael S.; Preheim, Sarah P.; Polz, Martin F.; Ruby, Edward G.

doi:10.1111/j.1462-2920.2011.02608.x

Cited by 18 publications

(9 citation statements)

References 49 publications

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“…For example, sequencing of the genomes of dozens of V. fischeri strains, both symbiotic and strictly environmental, is underway. Comparative analysis of the resulting data has begun to provide insight into that portion of the flexible genome of V. fischeri that is required for the establishment and maintenance of a horizontally transmitted animal symbiosis (81; 95). The sequencing of the host genome is nearly complete, and will pave the way for the study of such exciting questions as the nature of gene regulation during the developmental trajectory of the association.…”

Section: Frontiersmentioning

confidence: 99%

The Importance of Microbes in Animal Development: Lessons from the Squid-Vibrio Symbiosis

McFall‐Ngai

2014

Annu. Rev. Microbiol.

223

231

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Developmental biology is among the many sub-disciplines of the life sciences being transformed by our increasing awareness of the role of coevolved microbial symbionts in health and disease. Most symbioses are horizontally acquired, i.e., begin anew each generation. In such associations, the embryonic period prepares the animal to engage with the coevolved partner(s) with fidelity following birth or hatching into the environment. Once interactions are underway, the microbial partners drive maturation of tissues that are either directly associated with or distant from the symbiont populations. Animal alliances often involve complex microbial communities, such as those in the vertebrate gastrointestinal tract. A series of simpler model systems is providing insight into the basic ‘rules’ and principles that govern the establishment and maintenance of stable animal-microbe partnerships. This review focuses upon what biologists have learned about the developmental trajectory of horizontally acquired symbioses through the study of the binary squid-vibrio model.

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Section: Frontiersmentioning

confidence: 99%

The Importance of Microbes in Animal Development: Lessons from the Squid-Vibrio Symbiosis

McFall‐Ngai

2014

Annu. Rev. Microbiol.

223

231

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“…In this regard, however, gene replacement by homologues horizontally acquired from a distantly related species can reduce fitness of the recipient (Lind et al ., 2010), so loss of the vertically inherited lux genes might have preceded their horizontal acquisition. Furthermore, there are several instances of strains lacking lux genes in otherwise luminous species of Vibrionaceae (Kaeding et al ., 2007; O'Grady and Wimpee, 2008; Wollenberg et al ., 2012). Therefore, it is possible that along with NBRC 104633 T , both non‐luminous strains of P. aquimaris lacking the lux genes and luminous strains of this species that carry the vertically inherited lux genes exist.…”

Section: Resultsmentioning

confidence: 99%

Natural replacement of vertically inherited lux‐rib genes of Photobacterium aquimaris by horizontally acquired homologues

Urbanczyk

Furukawa

Yamamoto

et al. 2012

Environ Microbiol Rep

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We report here the first instance of a complete replacement of vertically inherited luminescence genes by horizontally acquired homologues. Different strains of Photobacterium aquimaris contain homologues of the lux-rib genes that have a different evolutionary history. Strain BS1 from the Black Sea contains a vertically inherited lux-rib operon, which presumably arose in the ancestor of this species, whereas the type strain NBRC 104633(T) , from Sagami Bay, lacks the vertically inherited lux-rib operon and instead carries a complete and functional lux-rib operon acquired horizontally from a bacterium related to Photobacterium mandapamensis. The results indicate that the horizontal acquisition of the lux genes expanded the pan-genome of P. aquimaris, but it did not influence the phylogenetic divergence of this species.

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“…As alluded to earlier, V. fischeri can be isolated from oceans worldwide, including where the microorganism's animal hosts are not present (Soto et al 2009). Furthermore, V. fischeri strains have been isolated from the ocean that are unable to develop bioluminescent mutualisms with either sepiolid squids or monocentrid fishes, apparently forced to subsist as free-living members of the bacterioplankton or as saprophytes/biofilms attached to suspended debris, detritus, sediment, or other living organisms (Soto et al 2009;Wollenberg et al 2012).…”

Section: The Sepiolid Squid-vibrio Fischeri Mutualismmentioning

confidence: 99%

Adaptation to temperature stress by Vibrio fischeri facilitates this microbe's symbiosis with the Hawaiian bobtail squid ( Euprymna scolopes )

et al. 2019

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For microorganisms cycling between free‐living and host‐associated stages, where reproduction occurs in both of these lifestyles, an interesting inquiry is whether adaptation to stress during the free‐living stage can impact microbial fitness in the host. To address this topic, the mutualism between the Hawaiian bobtail squid (Euprymna scolopes) and the marine bioluminescent bacterium Vibrio fischeri was utilized. Using microbial experimental evolution, V. fischeri was selected to low (8°C), high (34°C), and fluctuating temperature stress (8°C/34°C) for 2000 generations. The temperatures 8°C and 34°C were the lower and upper growth limits, respectively. V. fischeri was also selected to benign temperatures (21°C and 28°C) for 2000 generations, which served as controls. V. fischeri demonstrated significant adaptation to low, high, and fluctuating temperature stress. V. fischeri did not display significant adaptation to the benign temperatures. Adaptation to stressful temperatures facilitated V. fischeri’s ability to colonize the squid host relative to the ancestral lines. Bioluminescence levels also increased. Evolution to benign temperatures did not manifest these results. In summary, microbial adaptation to stress during the free‐living stage can promote coevolution between hosts and microorganisms.

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Polyphyly of non‐bioluminescent Vibrio fischeri sharing a lux‐locus deletion

Cited by 18 publications

References 49 publications

The Importance of Microbes in Animal Development: Lessons from the Squid-Vibrio Symbiosis

The Importance of Microbes in Animal Development: Lessons from the Squid-Vibrio Symbiosis

Natural replacement of vertically inherited lux‐rib genes of Photobacterium aquimaris by horizontally acquired homologues

Adaptation to temperature stress by Vibrio fischeri facilitates this microbe's symbiosis with the Hawaiian bobtail squid ( Euprymna scolopes )

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