Thirty years of tick population genetics

A comprehensive review

Ana Araya-Anchetta, Joseph D. Busch, Glen A. Scoles, David M Wagner

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Population genetic studies provide insights into the basic biology of arthropod disease vectors by estimating dispersal patterns and their potential to spread pathogens. In wingless vectors, such as ticks, gene flow will be defined in large part by the mobility of their hosts. However, tick behaviors and life cycle strategies can limit their dispersal even on highly mobile hosts and lead to an increase in genetic structure. In this review we synthesize the published literature from three decades of tick population genetic studies. Based on studies from 22 tick species (including representatives from Amblyomma, Bothriocroton, Dermacentor, Ixodes, Ornithodoros, and Rhipicephalus), observed levels of population genetic structure in ticks varied from no structure to very high levels. In about half of the species (including representatives from Amblyomma, Bothriocroton, Dermacentor, and Ornithodoros), tick genetic structure appeared to be determined primarily by the movement capacity of hosts, with low gene flow observed in ticks that use smaller bodied less mobile hosts and high gene flow in ticks using highly mobile hosts. In a number of other species (primarily from Ixodes, Ornithodoros, and Rhipicephalus), behavioral limitations to gene flow appeared to result in greater genetic structure than expected based upon host movement capability alone. We also discuss the strengths and limitations of genetic markers and their applicability to ticks and suggest possible analyses when planning population genetic studies for ticks.

Original languageEnglish (US)
Pages (from-to)164-179
Number of pages16
JournalInfection, Genetics and Evolution
Volume29
DOIs
StatePublished - Jan 1 2015

Fingerprint

tick
Population Genetics
Ticks
population genetics
ticks
Gene Flow
Genetic Structures
Ornithodoros
genetic structure
gene flow
Dermacentor
Rhipicephalus
Amblyomma
Ixodes
Arthropod Vectors
disease vector
Disease Vectors
disease vectors
genetic marker
Life Cycle Stages

Keywords

  • Disease vectors
  • Host mobility
  • Molecular markers
  • Population genetic structure
  • Tick dispersal

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Molecular Biology
  • Microbiology
  • Infectious Diseases
  • Microbiology (medical)

Cite this

Thirty years of tick population genetics : A comprehensive review. / Araya-Anchetta, Ana; Busch, Joseph D.; Scoles, Glen A.; Wagner, David M.

In: Infection, Genetics and Evolution, Vol. 29, 01.01.2015, p. 164-179.

Research output: Contribution to journalArticle

Araya-Anchetta, Ana ; Busch, Joseph D. ; Scoles, Glen A. ; Wagner, David M. / Thirty years of tick population genetics : A comprehensive review. In: Infection, Genetics and Evolution. 2015 ; Vol. 29. pp. 164-179.
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