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 variability in krill.

J W Valentine, F J Ayala

    Proceedings of the National Academy of Sciences of the United States of America
    |February 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Genetic variability in krill species is linked to the stability of their food resources, not environmental conditions. Higher genetic diversity is found in areas with stable food availability.

    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

    Cases of Poisoning by Oxymuriate of Mercury.

    Edinburgh medical and surgical journal·2018
    Same author

    GEOGRAPHY OF THE SIBLING SPECIES RELATED TO DROSOPHILA WILLISTONI, AND OF THE SEMISPECIES OF THE DROSOPHILA PAULISTORUM COMPLEX.

    Evolution; international journal of organic evolution·2017
    Same author

    Is Predominant Clonal Evolution a Common Evolutionary Adaptation to Parasitism in Pathogenic Parasitic Protozoa, Fungi, Bacteria, and Viruses?

    Advances in parasitology·2017
    Same author

    Wineries, drosophila, alcohol, and Adh.

    Oecologia·2017
    Same author

    Phylogenetic character mapping of RADES Probing, a new marker for exploring the clonal evolution of expressed coding sequences in Trypanosoma cruzi, the agent of Chagas disease.

    Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases·2013
    Same author

    Scales of climatic variability and time averaging in Pleistocene biotas: implications for ecology and evolution.

    Trends in ecology & evolution·2011
    Same journal

    Chemotactic self-organization captures the dynamics of mammalian hair follicle patterning.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Tomographic imaging of superconducting order using particle-hole interference.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Inhibitory potential of autologous neutralizing antibodies sets quantitative limits on the rebound-competent HIV-1 reservoir.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Inferring epidemiological parameters under an infectious phylogeography model with visitor dynamics.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Analytical modeling for suction cup designs for skin-interfaced wearable devices.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Improving cell-free metabolism through direct integration of artificial respiratory chains.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    See all related articles

    Area of Science:

    • Marine biology
    • Genetics
    • Ecology

    Background:

    • Krill (Crustacea: Euphausiacea) are vital marine zooplankton.
    • Understanding genetic variability is key to assessing population health and adaptation.
    • Previous studies suggest environmental stability influences genetic diversity in marine invertebrates.

    Purpose of the Study:

    • To estimate genetic variability in three Euphausia krill species.
    • To investigate the relationship between genetic diversity and environmental/trophic resource stability.

    Main Methods:

    • Gel electrophoresis was used to assess genetic variability.
    • Three species within the genus Euphausia were sampled.
    • Environmental parameters and trophic resource seasonality were analyzed.

    Related Experiment Videos

    Main Results:

    • Genetic variability was found to be low in krill populations with seasonal trophic resources.
    • Conversely, genetic variability was high in populations with stable trophic resources.
    • No correlation was observed between genetic variability and the stability of physical environmental parameters.

    Conclusions:

    • Trophic resource stability is a significant factor shaping genetic diversity in Euphausia krill.
    • The findings align with trends observed in benthic marine invertebrates.
    • Environmental stability alone does not appear to drive genetic variability patterns in these krill species.