Sex-Biased Genetic Structure in the Vector of Lyme Disease, Ixodes Ricinus

Meeûs, Thierry De; Béati, Lorenza; Delaye, Christelle; Aeschlimann, André; Renaud, François

doi:10.1111/j.0014-3820.2002.tb00194.x

Cited by 58 publications

(20 citation statements)

References 53 publications

(44 reference statements)

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“…ricinus populations of continental Europe at both local and regional scales, but substantial differences between North African and European populations [9, 10, 19]. This discrepancy with our results may well reflect differences in sampling design, since the previous studies did not include the northwestern-most areas separated by open seas, as we did in our study.…”

Section: Discussioncontrasting

confidence: 87%

“…ricinus . MtDNA is a particularly suitable marker for analyzing genetic structure in ticks due to both maternal inheritance and because long distance dispersal is more common for adult females than adult males [9, 28]. DNA from individual ticks was extracted using DNeasy TM Tissue Kit (Qiagen).…”

Section: Methodsmentioning

confidence: 99%

“…Hosts with the greatest potential for dispersing ticks include large mammals and birds. This may produce considerable genetic connectivity over broad spatial scales with little genetic structure or an isolation-by-distance pattern [9, 10]. However, previous range expansions and major topographic features can leave lasting genetic signatures on contemporary patterns of spatial genetic structure that persist, even at high rates of gene flow [11, 12].…”

Section: Introductionmentioning

confidence: 99%

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Phylogenetic Lineages and Postglacial Dispersal Dynamics Characterize the Genetic Structure of the Tick, Ixodes ricinus, in Northwest Europe

Røed

Kvie

Hasle³

et al. 2016

PLoS ONE

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Dispersal and gene flow are important mechanisms affecting the dynamics of vectors and their pathogens. Here, patterns of genetic diversity were analyzed in many North European populations of the tick, Ixodes ricinus. Population sites were selected within and between areas separated by geographical barriers in order to evaluate the importance of tick transportation by birds in producing genetic connectivity across open sea and mountain ranges. The phylogenetic analyses of the mitochondrial control region and the cytochrome b gene revealed two distinct clades with supported sub-clades, with three genetic lineages: GB and WNo associated with Great Britain and western Norway respectively, and Eu with a wider distribution across continental Europe in agreement with much lower efficiency of tick dispersal by birds than by large mammals. The results suggest different ancestry of I. ricinus colonizing Britain and the rest of northern Europe, possibly from different glacial refuges, while ticks from western Norway and continental Europe share a more recent common ancestry. Demographic history modeling suggests a period of strong increase in tick abundance coincident with progression of the European Neolithic culture, long after their post-glacial colonization of NW Europe.

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Section: Discussioncontrasting

confidence: 87%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phylogenetic Lineages and Postglacial Dispersal Dynamics Characterize the Genetic Structure of the Tick, Ixodes ricinus, in Northwest Europe

Røed

Kvie

Hasle³

et al. 2016

PLoS ONE

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“…This choice of statistics is motivated by the work of Goudet et al [49] where v AI c was shown to be the most powerful statistic when migration is low (less than 10%), while F ST performs better in other circumstances. We also chose to keep m AI c because it may be more powerful in case of complex patterns of sex specific genetic structures [50], [51]. Tests were all bilateral.…”

Section: Methodsmentioning

confidence: 99%

Contrasting Population Structures of Two Vectors of African Trypanosomoses in Burkina Faso: Consequences for Control

et al. 2011

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BackgroundAfrican animal trypanosomosis is a major obstacle to the development of more efficient and sustainable livestock production systems in West Africa. Riverine tsetse species such as Glossina palpalis gambiensis Vanderplank and Glossina tachinoides Westwood are the major vectors. A wide variety of control tactics is available to manage these vectors, but their removal will in most cases only be sustainable if the control effort is targeting an entire tsetse population within a circumscribed area.Methodology/Principal FindingsIn the present study, genetic variation at microsatellite DNA loci was used to examine the population structure of G. p. gambiensis and G. tachinoides inhabiting four adjacent river basins in Burkina Faso, i.e. the Mouhoun, the Comoé, the Niger and the Sissili River Basins. Isolation by distance was significant for both species across river basins, and dispersal of G. tachinoides was ∼3 times higher than that of G. p. gambiensis. Thus, the data presented indicate that no strong barriers to gene flow exists between riverine tsetse populations in adjacent river basins, especially so for G. tachinoides.Conclusions/SignificanceTherefore, potential re-invasion of flies from adjacent river basins will have to be prevented by establishing buffer zones between the Mouhoun and the other river basin(s), in the framework of the PATTEC (Pan African Tsetse and Trypanosomosis Eradication Campaign) eradication project that is presently targeting the northern part of the Mouhoun River Basin. We argue that these genetic analyses should always be part of the baseline data collection before any tsetse control project is initiated.

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“…This choice of statistics is motivated by the work of Goudet et al [37] where v AI c was shown to be the most powerful statistic when migration is low (less than 10%), while F ST performs better in other circumstances. We also chose to keep m AI c because it may be more powerful in case of complex patterns of sex specific genetic structures [39,40]. Tests were all bilateral.…”

Section: Methodsmentioning

confidence: 99%

Population genetics of Glossina palpalis palpalis from central African sleeping sickness foci

et al. 2011

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BackgroundGlossina palpalis palpalis (Diptera: Glossinidae) is widespread in west Africa, and is the main vector of sleeping sickness in Cameroon as well as in the Bas Congo Province of the Democratic Republic of Congo. However, little is known on the structure of its populations. We investigated G. p. palpalis population genetic structure in five sleeping sickness foci (four in Cameroon, one in Democratic Republic of Congo) using eight microsatellite DNA markers.ResultsA strong isolation by distance explains most of the population structure observed in our sampling sites of Cameroon and DRC. The populations here are composed of panmictic subpopulations occupying fairly wide zones with a very strong isolation by distance. Effective population sizes are probably between 20 and 300 individuals and if we assume densities between 120 and 2000 individuals per km2, dispersal distance between reproducing adults and their parents extends between 60 and 300 meters.ConclusionsThis first investigation of population genetic structure of G. p. palpalis in Central Africa has evidenced random mating subpopulations over fairly large areas and is thus at variance with that found in West African populations of G. p. palpalis. This study brings new information on the isolation by distance at a macrogeographic scale which in turn brings useful information on how to organise regional tsetse control. Future investigations should be directed at temporal sampling to have more accurate measures of demographic parameters in order to help vector control decision.

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Sex-Biased Genetic Structure in the Vector of Lyme Disease, Ixodes Ricinus

Cited by 58 publications

References 53 publications

Phylogenetic Lineages and Postglacial Dispersal Dynamics Characterize the Genetic Structure of the Tick, Ixodes ricinus, in Northwest Europe

Phylogenetic Lineages and Postglacial Dispersal Dynamics Characterize the Genetic Structure of the Tick, Ixodes ricinus, in Northwest Europe

Contrasting Population Structures of Two Vectors of African Trypanosomoses in Burkina Faso: Consequences for Control

Population genetics of Glossina palpalis palpalis from central African sleeping sickness foci

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