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

Genetic supercycles caused by cyclical selection

V M Kirzhner1, A B Korol, Y I Ronin

  • 1Institute of Evolution, University of Haifa, Israel.

Proceedings of the National Academy of Sciences of the United States of America
|July 18, 1995
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

Diversity and Sources of Multiple Disease Resistance in Hordeum spontaneum.

Plant disease·2019
Same author

Seedling Resistance to Tan Spot and Stagonospora nodorum Leaf Blotch in Wild Emmer Wheat (Triticum dicoccoides).

Plant disease·2019
Same author

Adaptive energy metabolism in four chromosomal species of subterranean mole rats.

Oecologia·2017
Same author

Foraging strategy in a subterranean rodent, Spalax ehrenbergi: a test case for optimal foraging theory.

Oecologia·2017
Same author

Stripe smuts of grasses: one lineage or high levels of polyphyly?

Persoonia·2015
Same author

Adaptive evolution of duplicated hsp17 genes in wild barley from microclimatically divergent sites of Israel.

Genetics and molecular research : GMR·2014

Cyclical selection in genetics can lead to complex behaviors. Simple cyclical selection can unexpectedly generate genetic supercycles lasting hundreds of environmental periods.

Area of Science:

  • Population genetics
  • Evolutionary biology
  • Theoretical ecology

Background:

  • Two-locus genetic systems under cyclical selection typically exhibit fixation or stable polymorphic cycles.
  • These cycles usually match the environmental change period, simplifying analysis.

Purpose of the Study:

  • To investigate the complex limiting behavior of diploid population trajectories under cyclical selection.
  • To identify novel dynamic patterns beyond simple stable points or cycles.

Main Methods:

  • Mathematical modeling of a two-locus genetic system.
  • Analysis of population trajectories in a cyclically changing environment.
  • Simulation of genetic dynamics over extended time scales.

Main Results:

Related Experiment Videos

  • Observed complex limiting behaviors in diploid populations not previously characterized.
  • Identified instances where simple cyclical selection generates "genetic supercycles."
  • These supercycles can persist for hundreds of environmental periods, far exceeding simple cycles.

Conclusions:

  • Cyclical selection can drive significantly more complex evolutionary dynamics than previously assumed.
  • The concept of "genetic supercycles" reveals a new layer of complexity in evolutionary processes.
  • These findings challenge simple classifications of population behavior under fluctuating environments.