Cospeciation Between Bacterial Endosymbionts (Buchnera) and a Recent Radiation of Aphids (Uroleucon) and Pitfalls of Testing for Phylogenetic Congruence

Clark, Marta A.; Moran, Nancy A.; Baumann, Paul; Wernegreen, Jennifer J.

doi:10.1554/0014-3820(2000)054[0517:cbbeba]2.0.co;2

Cited by 62 publications

(76 citation statements)

References 46 publications

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“…With this in mind, it can be assumed that, rarely, congeners may infect the same insect cadaver and one or both nematode species would successfully reproduce (Půzǎ & Mráček, 2009), perhaps having associated with a novel strain or species of bacteria (such a case has not yet been found in nature). For endosymbiotic bacteria, such as those of aphids (Clark et al, 2000) and psyllids (Thao et al, 2000), vertical transmission via cytoplasmic inheritance has been a strong cause of high levels of cospeciation. In the Steinernema-Xenorhabdus lifecycle, the partners are disassociated for one to three generations within the insect cadaver.…”

Section: Discussionmentioning

confidence: 99%

“…If results of the test are significant, then the null hypothesis that the phylogenies under comparison are the same is rejected. This method and a similar likelihood test, the Kishino-Hawegawa (KH) test, have successfully been applied to compare a variety of trees, including host and symbiont datasets and individual genes trees (see Degnan et al, 2004;Clark et al, 2000).…”

Section: Phylogenetic Analysismentioning

confidence: 99%

“…Cospeciation, a case where the lineages of two ecologically associated species track each other, can occur in the instance of tight symbiotic associations, such as in the case of gophers and their lice (Hafner & Nadler, 1988), sepiolid squids and Vibrio fischeri bacteria (Nishiguchi et al, 1998), as well as certain aphids and Buchnera, their endosymbiotic bacteria (Clark et al, 2000). When the trees of mutualists are congruent, the pattern is referred to as cophylogeny, co-cladogenesis or parallel cladogenesis, and it has also been demonstrated that associations between mutualists, especially if they are obligate, often result in co-evolutionary scenarios, accelerated genetic change and speciation (Thompson, 2005).…”

Section: Introductionmentioning

confidence: 99%

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A multilocus approach to assessing co-evolutionary relationships between Steinernema spp. (Nematoda: Steinernematidae) and their bacterial symbionts Xenorhabdus spp. (γ-Proteobacteria: Enterobacteriaceae)

Lee

Stock

2010

Syst Parasitol

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Nematodes of the genus Steinernema Travassos, 1927 (Nematoda: Steinernematidae) and their associated bacteria, Xenorhabdus spp. (gamma-Proteobacteria), are an emergent model of terrestrial animal-microbe symbiosis. Interest in this association initially arose out of their potential as biocontrol agents against insect pests, but, despite advances in their field application and the growing popularity of this model system, relatively little has been published to uncover the evolutionary facets of this beneficial partnership. This study adds to the body of knowledge regarding nematode-bacteria symbiosis by proposing a possible scenario for their historical association in the form of a cophylogenetic hypothesis. Topological and likelihood based testing methods were employed to reconstruct a history of association between 30 host-symbiont pairs and to gauge the level of similarity between their inferred phylogenetic patterns.

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Section: Discussionmentioning

confidence: 99%

Section: Phylogenetic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A multilocus approach to assessing co-evolutionary relationships between Steinernema spp. (Nematoda: Steinernematidae) and their bacterial symbionts Xenorhabdus spp. (γ-Proteobacteria: Enterobacteriaceae)

Lee

Stock

2010

Syst Parasitol

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“…Chemical evolution produced the primitive ribosome (a proto-RNA ribozyme), which via chemical evolution produced the first crude RNA polymerase (a proto-protein enzyme). There are no abrupt departures, reinitializations, radical changes of course or wholesale extinctions obligate bacterial symbionts (Buchnera and Uroleucon) form highly intimate mutualisms (Clark et al 2000).…”

Section: Biopolymer Mutualism and Coevolutionmentioning

confidence: 99%

The Ribosome Challenge to the RNA World

2015

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An RNA World that predated the modern world of polypeptide and polynucleotide is one of the most widely accepted models in origin of life research. In this model, the translation system shepherded the RNA World into the extant biology of DNA, RNA, and protein. Here, we examine the RNA World Hypothesis in the context of increasingly detailed information available about the origins, evolution, functions, and mechanisms of the translation system. We conclude that the translation system presents critical challenges to RNA World Hypotheses. Firstly, a timeline of the RNA World is problematic when the ribosome is incorporated. The mechanism of peptidyl transfer of the ribosome appears distinct from evolved enzymes, signaling origins in a chemical rather than biological milieu. Secondly, we have no evidence that the basic biochemical toolset of life is subject to substantive change by Darwinian evolution, as required for the transition from the RNA world to extant biology. Thirdly, we do not see specific evidence for biological takeover of ribozyme function by protein enzymes. Finally, we can find no basis for preservation of the ribosome as ribozyme or the universality of translation, if it were the case that other information transducing ribozymes, such as ribozyme polymerases, were replaced by protein analogs and erased from the phylogenetic record. We suggest that an updated model of the RNA World should address the current state of knowledge of the translation system.

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“…Besides mutualism [115][116][117], competitive [118], predator-prey [119], and host-parasite [120,121] interactions all affect the evolution of populations.…”

Section: Symbiosis and Evolutionmentioning

confidence: 99%

Using artificial systems to explore the ecology and evolution of symbioses

Momeni

Chen

Hillesland

et al. 2011

Cell. Mol. Life Sci.

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The web of life is weaved from diverse symbiotic interactions between species. Symbioses vary from antagonistic interactions such as competition and predation to beneficial interactions such as mutualism. What are the bases for the origin and persistence of symbiosis? What affects the ecology and evolution of symbioses? How do symbiotic interactions generate ecological patterns? How do symbiotic partners evolve and coevolve? Many of these questions are difficult to address in natural systems. Artificial systems, from abstract to living, have been constructed to capture essential features of natural symbioses and to address these key questions. With reduced complexity and increased controllability, artificial systems can serve as useful models for natural systems. We review how artificial systems have contributed to our understanding of symbioses.

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Cospeciation Between Bacterial Endosymbionts (Buchnera) and a Recent Radiation of Aphids (Uroleucon) and Pitfalls of Testing for Phylogenetic Congruence

Cited by 62 publications

References 46 publications

A multilocus approach to assessing co-evolutionary relationships between Steinernema spp. (Nematoda: Steinernematidae) and their bacterial symbionts Xenorhabdus spp. (γ-Proteobacteria: Enterobacteriaceae)

A multilocus approach to assessing co-evolutionary relationships between Steinernema spp. (Nematoda: Steinernematidae) and their bacterial symbionts Xenorhabdus spp. (γ-Proteobacteria: Enterobacteriaceae)

The Ribosome Challenge to the RNA World

Using artificial systems to explore the ecology and evolution of symbioses

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