Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Dispersal differences predict population genetic structure in Mormon crickets.

Nathan W Bailey1, Darryl T Gwynne, Michael G Ritchie

  • 1Department of Biology, 3357 Spieth Hall, University of California, Riverside, CA 92521, USA. nathanb@ucr.edu

Molecular Ecology
|May 15, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Naturally selected and sexually selected wing structures synergistically enhance the attractiveness of katydid acoustic signals.

Proceedings. Biological sciences·2026
Same author

A career in pursuit of the origin of species: celebrating Roger Butlin's contributions to the advancement of knowledge and growth of our scientific community.

Journal of evolutionary biology·2026
Same author

Behavioural genetics: Same-sex mating in flies is no mistake.

Current biology : CB·2026
Same author

Genomic analyses in <i>Drosophila</i> do not support the classic allopatric model of speciation.

Evolution letters·2026
Same author

Skin Colour in Salamanders Is Modulated by Both Epitranscriptomic Methylation and Gene Expression.

Molecular ecology·2026
Same author

Pink Cricket Club: Dramatic color change in a Neotropical leaf-masquerading katydid (Arota festae, Griffini, 1896).

Ecology·2026
Same journal

Refugia, but Not for Everyone: Genetic Structure Differentiates Shallow and Mesophotic Populations of the Brooder Sponge Ircinia variabilis.

Molecular ecology·2026
Same journal

Leafcutter Ant Farmers Prevent Loss of Edible Symbiotic Structures by Maintaining Allelic Diversity in Their Multinucleate Fungal Crop.

Molecular ecology·2026
Same journal

Resolving Emergent Patterns in Community Genetics With Environmental DNA.

Molecular ecology·2026
Same journal

Genomic Offsets Predict Survival With Low Accuracy in a Marine Common Garden.

Molecular ecology·2026
Same journal

Differential Immune Responses Correlate With Chytridiomycosis Severity in Italian Crested Newts.

Molecular ecology·2026
Same journal

Demography and Environment Shapes Genetic Variation: Spatiotemporal Genetic Dynamics in Cyclic Voles at Low Latitudes.

Molecular ecology·2026
See all related articles

Pleistocene glacial cycles, not phase behavior, primarily shaped Mormon cricket genetics. Differences in dispersal influenced genetic structure, especially in the eastern solitary clade, highlighting climate and geography interactions.

Area of Science:

  • Evolutionary Biology
  • Population Genetics
  • Speciation Research

Background:

  • Geographical context of speciation often emphasizes abiotic factors like climate and geology.
  • Few studies compare how biological differences, such as dispersal behavior, influence genetic structure after Pleistocene subdivision.
  • Mormon crickets exhibit solitary and gregarious phases, with a distinct east-west mitochondrial DNA division across the Rocky Mountains.

Purpose of the Study:

  • To determine if population genetic structure in Mormon crickets is mainly due to Pleistocene vicariance or recent phase/dispersal differences.
  • To investigate the relative importance of refugia separation versus phase behavior in genetic divergence.
  • To understand how Quaternary climate fluctuations, geography, and biotic factors interact to create genetic subdivision.

Related Experiment Videos

Main Methods:

  • Analysis of population genetic structure using mitochondrial (mtDNA) and nuclear DNA.
  • Comparison of genetic divergence patterns between eastern and western clades.
  • Assessment of isolation by distance and mtDNA haplotype mismatch distributions.

Main Results:

  • Refugia separation during the Pleistocene was a more significant driver of genetic divergence than phase behavior.
  • The Rocky Mountains acted as a barrier, creating eastern and western refugia.
  • Patterns of isolation by distance varied between eastern and western clades, with greater divergence in the eastern solitary clade.
  • Evidence suggests historical population expansion in the western clade but not the eastern clade.

Conclusions:

  • Pleistocene refugia separation is the primary influence on Mormon cricket genetic divergence.
  • Dispersal differences, potentially sex-biased, contribute to greater genetic structure in the eastern solitary clade.
  • The interplay between Quaternary climate, geography, and biotic factors is crucial for understanding current genetic subdivision patterns.