Microbial modification of host long-distance dispersal capacity

Goodacre, Sara L.; Martin, Oliver Y.; Bonte, Dries; Hutchings, Linda; Woolley, Christopher; Ibrahim, Kamal M.; Thomas, CF George; Hewitt, Godfrey M.

doi:10.1186/1741-7007-7-32

Cited by 101 publications

(92 citation statements)

References 29 publications

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“…Maternally-inherited endosymbiont bacteria, such as Wolbachia (Rickettsiales), are very common in insects (Hilgenboecker et al 2008) and impose a range of consequences on their hosts' reproduction, including cytoplasmic incompatibility (CI), male-killing, and induced parthenogenesis (reviewed in Werren et al 2008). Endosymbionts can also negatively influence other aspects of their host's biology, including life-span (McMeniman et al 2009) and dispersal (Goodacre et al 2009). CI-induction should facilitate Wolbachia invasion into wild host populations and may be a viable strategy to reduce pest populations (Zabalou et al 2004) and pathogen transmission (McMeniman et al 2009).…”

Section: Host-parasite Interactionsmentioning

confidence: 99%

Ecological genetics of invasive alien species

et al. 2011

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There is growing realisation that integrating genetics and ecology is critical in the context of biological invasions, since the two are explicitly linked. So far, the focus of ecological genetics of invasive alien species (IAS) has been on determining the sources and routes of invasions, and the genetic make-up of founding populations, which is critical for defining and testing ecological and evolutionary hypotheses. However an ecological genetics approach can be extended to investigate questions about invasion success and impacts on native, recipient species. Here, we discuss recent progress in the field, provide overviews of recent methodological advances, and highlight areas that we believe are of particular interest for future research. First, we discuss the main insights from studies that have inferred source populations and invasion routes using molecular genetic data, with particular focus on the role of genetic diversity, adaptation and admixture in invasion success. Second, we consider how genetic tools can lead to a better understanding of patterns of dispersal, which is critical to predicting the spread of invasive species, and how studying invasions can shed light on the evolution of dispersal. Finally, we explore the potential for combining molecular genetic data and ecological network modelling to investigate community interactions such as those between predator and prey, and host and parasite. We conclude that invasions are excellent model systems for understanding the role of natural selection in shaping phenotypes and that an ecological genetics approach offers great potential for addressing fundamental questions in invasion biology.

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Section: Host-parasite Interactionsmentioning

confidence: 99%

Ecological genetics of invasive alien species

et al. 2011

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“…Maternally inherited reproductive parasites such as Wolbachia, Rickettsia, and Spiroplasma species are known to have profound effects on reproduction and behavior (e.g., Goodacre et al 2009) of their hosts (reviewed in Engelstädter and Hurst 2008;Goodacre and Martin 2012). More recently, a further reproductive parasite, Cardinium hertigii (Bacteroidetes) , has been described.…”

Section: Introductionmentioning

confidence: 99%

Diversity and Phylogeny of Cardinium (Bacteroidetes) in Armored Scale Insects (Hemiptera: Diaspididae)

Gruwell

Normark

2009

Annals of the Entomological Society of America

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Species of Cardinium are intracellular endosymbionts of arthropods. They are known to interfere with the mode of reproduction in some parasitoid wasp and mite hosts, and they are associated with parthenogenesis in the oleander scale, Aspidiotus nerii Bouché (Hemiptera: Diaspididae). Here, we survey A. nerii more broadly for presence of Cardinium species. In total, we tested 593 individuals in 301 populations, representing 132 identified species of armored scale insects, by using polymerase chain reaction (PCR) and sequencing of 16S rDNA. We obtained positive PCR results in 67 individuals of 34 populations, representing 20 species and one unidentified individual. Sequencing of these PCR products yields 20 new Cardinium haplotypes, raising the number of known insect-associated Cardinium haplotypes from 15 to 35. The new host-list elucidates the ecology of Cardinium, which in insects seems to be specialized on plant-feeding Hemiptera and associated parasitoid Hymenoptera. A phylogenetic analysis of all known insect-associated Cardinium 16S sequences reveals deep diversity in armored scale insects and implies horizontal transfer of Cardinium among armored scale insects and their parasitoids.

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“…Some microorganisms contribute to insect defense against natural enemies, often by the production of specific antibiotics or stimulation of the insect immune system (4)(5)(6)(7)(8). Other insect traits reported to be affected by the microbiota include dispersal behavior, insecticide resistance, food choice, thermal resistance, mate choice, virus vector competence, reproductive traits (including sex ratio), and body color (9)(10)(11)(12)(13)(14)(15)(16).…”

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confidence: 99%

Microbe-Dependent and Nonspecific Effects of Procedures To Eliminate the Resident Microbiota from Drosophila melanogaster

Ridley

Wong

Douglas

2013

Appl Environ Microbiol

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bComparisons of animals bearing and lacking microorganisms can offer valuable insight into the interactions between animal hosts and their resident microbiota. Most hosts are naturally infected, and therefore, these comparisons require specific procedures (e.g., antibiotic treatment or physical exclusion of microorganisms) to disrupt the microbiota, but the potential for confounding nonspecific effects of the procedure on the traits of the host exists. Microbe-dependent and nonspecific effects can be discriminated by using multiple procedures: microbe-dependent effects are evident in hosts made microbe free by different procedures, but nonspecific effects are unique to individual procedures. As a demonstration, two procedures, oral administration of chlortetracycline (50 g ml ؊1 diet) and microbiota removal by egg dechorionation, were applied to Drosophila melanogaster in a 2-by-2 factorial design. Microorganisms were undetectable in flies from dechorionated eggs and reduced by >99% in chlortetracycline-treated flies. Drosophila flies subjected to both protocols displayed an extended preadult development time, suggesting that the microbiota promotes the development rate. Female chlortetracycline-treated flies, whether from untreated or dechorionated eggs, displayed reduced protein content and egg fecundity, which could be attributed to the nonspecific effect of the antibiotic. We recommend that procedures used to disrupt the microbiota of animals should be selected, following systematic analysis of alternative mechanistically distinct procedures, on the basis of two criteria: those that achieve the greatest reduction (ideally, elimination) of the microbiota and those that achieve minimal nonspecific effects.

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Microbial modification of host long-distance dispersal capacity

Cited by 101 publications

References 29 publications

Ecological genetics of invasive alien species

Ecological genetics of invasive alien species

Diversity and Phylogeny of Cardinium (Bacteroidetes) in Armored Scale Insects (Hemiptera: Diaspididae)

Microbe-Dependent and Nonspecific Effects of Procedures To Eliminate the Resident Microbiota from Drosophila melanogaster

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