A Phylogenetic Hypothesis on the Evolution and Interactions of Xenorhabdus Spp. (Gamma-Proteobacteria) and Their Steinernema Hosts (Nematoda: Steinernematidae)

Persistent Link:
http://hdl.handle.net/10150/193414
Title:
A Phylogenetic Hypothesis on the Evolution and Interactions of Xenorhabdus Spp. (Gamma-Proteobacteria) and Their Steinernema Hosts (Nematoda: Steinernematidae)
Author:
Lee, Ming-Min
Issue Date:
2009
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Nematodes in the genus Steinernema (Nematoda: Steinernematidae) and their associated bacteria Xenorhabdus spp. (Gamma-Proteobacteria) are an emergent model of terrestrial animal-microbe symbiosis. Although interest in this association initially arose out of their potential as biocontrol agents against insect pests (Tanada and Kaya, 1993), this mutualistic partnership is currently viewed more broadly under the umbrella of basic sciences to inform ecology, evolution, biochemistry, molecular, among other disciplines (Burnell and Stock, 2000; Forst and Clarke, 2002).Despite advances in the discovery and field application of this nematode-bacterium partnership, and the growing popularity of this model system, relatively little has been published to uncover the evolutionary facets of their association. This study adds to the body of knowledge regarding nematode-bacteria symbiosis by 1) producing novel, multi-gene phylogenies for Steinernema and Xenorhabdus; 2) proposing a possible scenario for historical association in the form of a cophylogenetic hypothesis; 3) describing a newly discovered Steinernema species from France.
Type:
text; Electronic Thesis
Keywords:
Cophylogeny; Cospeciation; Phylogeny; Steinernema; Symbiosis; Xenorhabdus
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Entomology; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Stock, S. Patricia
Committee Chair:
Stock, S. Patricia

Full metadata record

DC FieldValue Language
dc.language.isoENen_US
dc.titleA Phylogenetic Hypothesis on the Evolution and Interactions of Xenorhabdus Spp. (Gamma-Proteobacteria) and Their Steinernema Hosts (Nematoda: Steinernematidae)en_US
dc.creatorLee, Ming-Minen_US
dc.contributor.authorLee, Ming-Minen_US
dc.date.issued2009en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractNematodes in the genus Steinernema (Nematoda: Steinernematidae) and their associated bacteria Xenorhabdus spp. (Gamma-Proteobacteria) are an emergent model of terrestrial animal-microbe symbiosis. Although interest in this association initially arose out of their potential as biocontrol agents against insect pests (Tanada and Kaya, 1993), this mutualistic partnership is currently viewed more broadly under the umbrella of basic sciences to inform ecology, evolution, biochemistry, molecular, among other disciplines (Burnell and Stock, 2000; Forst and Clarke, 2002).Despite advances in the discovery and field application of this nematode-bacterium partnership, and the growing popularity of this model system, relatively little has been published to uncover the evolutionary facets of their association. This study adds to the body of knowledge regarding nematode-bacteria symbiosis by 1) producing novel, multi-gene phylogenies for Steinernema and Xenorhabdus; 2) proposing a possible scenario for historical association in the form of a cophylogenetic hypothesis; 3) describing a newly discovered Steinernema species from France.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.subjectCophylogenyen_US
dc.subjectCospeciationen_US
dc.subjectPhylogenyen_US
dc.subjectSteinernemaen_US
dc.subjectSymbiosisen_US
dc.subjectXenorhabdusen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineEntomologyen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorStock, S. Patriciaen_US
dc.contributor.chairStock, S. Patriciaen_US
dc.contributor.committeememberMaddison, David R.en_US
dc.contributor.committeememberHunter, Martha S.en_US
dc.identifier.proquest10481en_US
dc.identifier.oclc659752185en_US
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