A Population Biology Perspective on the Stepwise Infection Process of the Bacterial Pathogen Pasteuria ramosa in Daphnia.
Identifieur interne : 002485 ( Main/Exploration ); précédent : 002484; suivant : 002486A Population Biology Perspective on the Stepwise Infection Process of the Bacterial Pathogen Pasteuria ramosa in Daphnia.
Auteurs : Dieter Ebert [Suisse] ; David Duneau [France] ; Matthew D. Hall [Australie] ; Pepijn Luijckx [Canada] ; Jason P. Andras [États-Unis] ; Louis Du Pasquier [Suisse] ; Frida Ben-Ami [Israël]Source :
- Advances in parasitology [ 2163-6079 ] ; 2016.
Descripteurs français
- KwdFr :
- MESH :
- génétique : Daphnia, Pasteuria.
- microbiologie : Daphnia.
- pathogénicité : Pasteuria.
- physiologie : Pasteuria.
- Animaux, Environnement, Interactions hôte-pathogène, Phylogénie, Spécificité d'hôte, Virulence, Évolution biologique.
English descriptors
- KwdEn :
- MESH :
- genetics : Daphnia, Pasteuria.
- microbiology : Daphnia.
- pathogenicity : Pasteuria.
- physiology : Pasteuria.
- Animals, Biological Evolution, Environment, Host Specificity, Host-Pathogen Interactions, Phylogeny, Virulence.
Abstract
The infection process of many diseases can be divided into series of steps, each one required to successfully complete the parasite's life and transmission cycle. This approach often reveals that the complex phenomenon of infection is composed of a series of more simple mechanisms. Here we demonstrate that a population biology approach, which takes into consideration the natural genetic and environmental variation at each step, can greatly aid our understanding of the evolutionary processes shaping disease traits. We focus in this review on the biology of the bacterial parasite Pasteuria ramosa and its aquatic crustacean host Daphnia, a model system for the evolutionary ecology of infectious disease. Our analysis reveals tremendous differences in the degree to which the environment, host genetics, parasite genetics and their interactions contribute to the expression of disease traits at each of seven different steps. This allows us to predict which steps may respond most readily to selection and which steps are evolutionarily constrained by an absence of variation. We show that the ability of Pasteuria to attach to the host's cuticle (attachment step) stands out as being strongly influenced by the interaction of host and parasite genotypes, but not by environmental factors, making it the prime candidate for coevolutionary interactions. Furthermore, the stepwise approach helps us understanding the evolution of resistance, virulence and host ranges. The population biological approach introduced here is a versatile tool that can be easily transferred to other systems of infectious disease.
DOI: 10.1016/bs.apar.2015.10.001
PubMed: 27015951
Affiliations:
- Australie, Canada, France, Israël, Suisse, États-Unis
- Massachusetts, Midi-Pyrénées, Occitanie (région administrative)
- Toulouse
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Le document en format XML
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Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv</wicri:regionArea><wicri:noRegion>Tel Aviv</wicri:noRegion></affiliation></author></analytic><series><title level="j">Advances in parasitology</title><idno type="eISSN">2163-6079</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Biological Evolution</term><term>Daphnia (genetics)</term><term>Daphnia (microbiology)</term><term>Environment</term><term>Host Specificity</term><term>Host-Pathogen Interactions</term><term>Pasteuria (genetics)</term><term>Pasteuria (pathogenicity)</term><term>Pasteuria (physiology)</term><term>Phylogeny</term><term>Virulence</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Animaux</term><term>Daphnia (génétique)</term><term>Daphnia (microbiologie)</term><term>Environnement</term><term>Interactions hôte-pathogène</term><term>Pasteuria (génétique)</term><term>Pasteuria (pathogénicité)</term><term>Pasteuria (physiologie)</term><term>Phylogénie</term><term>Spécificité d'hôte</term><term>Virulence</term><term>Évolution biologique</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Daphnia</term><term>Pasteuria</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Daphnia</term><term>Pasteuria</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Daphnia</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Daphnia</term></keywords><keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en"><term>Pasteuria</term></keywords><keywords scheme="MESH" qualifier="pathogénicité" xml:lang="fr"><term>Pasteuria</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Pasteuria</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Pasteuria</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Biological Evolution</term><term>Environment</term><term>Host Specificity</term><term>Host-Pathogen Interactions</term><term>Phylogeny</term><term>Virulence</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Environnement</term><term>Interactions hôte-pathogène</term><term>Phylogénie</term><term>Spécificité d'hôte</term><term>Virulence</term><term>Évolution biologique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The infection process of many diseases can be divided into series of steps, each one required to successfully complete the parasite's life and transmission cycle. This approach often reveals that the complex phenomenon of infection is composed of a series of more simple mechanisms. Here we demonstrate that a population biology approach, which takes into consideration the natural genetic and environmental variation at each step, can greatly aid our understanding of the evolutionary processes shaping disease traits. We focus in this review on the biology of the bacterial parasite Pasteuria ramosa and its aquatic crustacean host Daphnia, a model system for the evolutionary ecology of infectious disease. Our analysis reveals tremendous differences in the degree to which the environment, host genetics, parasite genetics and their interactions contribute to the expression of disease traits at each of seven different steps. This allows us to predict which steps may respond most readily to selection and which steps are evolutionarily constrained by an absence of variation. We show that the ability of Pasteuria to attach to the host's cuticle (attachment step) stands out as being strongly influenced by the interaction of host and parasite genotypes, but not by environmental factors, making it the prime candidate for coevolutionary interactions. Furthermore, the stepwise approach helps us understanding the evolution of resistance, virulence and host ranges. The population biological approach introduced here is a versatile tool that can be easily transferred to other systems of infectious disease.</div></front></TEI><affiliations><list><country><li>Australie</li><li>Canada</li><li>France</li><li>Israël</li><li>Suisse</li><li>États-Unis</li></country><region><li>Massachusetts</li><li>Midi-Pyrénées</li><li>Occitanie (région administrative)</li></region><settlement><li>Toulouse</li></settlement></list><tree><country name="Suisse"><noRegion><name sortKey="Ebert, Dieter" sort="Ebert, Dieter" uniqKey="Ebert D" first="Dieter" last="Ebert">Dieter Ebert</name></noRegion><name sortKey="Du Pasquier, Louis" sort="Du Pasquier, Louis" uniqKey="Du Pasquier L" first="Louis" last="Du Pasquier">Louis Du Pasquier</name></country><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Duneau, David" sort="Duneau, David" uniqKey="Duneau D" first="David" last="Duneau">David Duneau</name></region></country><country name="Australie"><noRegion><name sortKey="Hall, Matthew D" sort="Hall, Matthew D" uniqKey="Hall M" first="Matthew D" last="Hall">Matthew D. Hall</name></noRegion></country><country name="Canada"><noRegion><name sortKey="Luijckx, Pepijn" sort="Luijckx, Pepijn" uniqKey="Luijckx P" first="Pepijn" last="Luijckx">Pepijn Luijckx</name></noRegion></country><country name="États-Unis"><region name="Massachusetts"><name sortKey="Andras, Jason P" sort="Andras, Jason P" uniqKey="Andras J" first="Jason P" last="Andras">Jason P. Andras</name></region></country><country name="Israël"><noRegion><name sortKey="Ben Ami, Frida" sort="Ben Ami, Frida" uniqKey="Ben Ami F" first="Frida" last="Ben-Ami">Frida Ben-Ami</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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