Jove
Visualize
Contact Us

Related Experiment Videos

Multiple paternity in the loggerhead turtle (Caretta caretta).

J L Harry1, D A Briscoe

  • 1School of Biological Sciences, Macquarie University, Sydney, N.S.W., Australia.

The Journal of Heredity
|March 1, 1988
PubMed
Summary

Loggerhead turtle (Caretta caretta) breeding patterns reveal that multiple insemination is common, with one-third of clutches showing evidence of multiple fathers. This suggests a major shift from the expected single paternity breeding strategy.

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

Effects on heterozygosity and reproductive fitness of inbreeding with and without selection on fitness in Drosophila melanogaster.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013
Same author

Evolution of mitotic cell-lineages in multicellular organisms.

Trends in ecology & evolution·2011
Same author

What place for polyacrylamide in proteomics?

Trends in biotechnology·2002
Same author

Strategy for protein isoform identification from expressed sequence tags and its application to peptide mass fingerprinting.

Proteomics·2001
Same author

The impact of habitat fragmentation on dispersal of Cunningham's skink (Egernia cunninghami): evidence from allelic and genotypic analyses of microsatellites.

Molecular ecology·2001
Same author

Phenotypic and genetic characterization of Paecilomyces lilacinus strains with biocontrol activity against root-knot nematodes.

Canadian journal of microbiology·2000
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

Area of Science:

  • Marine Biology
  • Reproductive Ecology
  • Conservation Genetics

Background:

  • Loggerhead turtles (Caretta caretta) exhibit nesting behaviors at rookeries like Mon Repos, Queensland.
  • Understanding reproductive strategies is crucial for the conservation of endangered sea turtle populations.
  • Mendelian genetic ratios are typically expected under assumptions of single paternity.

Purpose of the Study:

  • To investigate the frequency of multiple paternity in loggerhead turtle clutches.
  • To determine the predominant mating system in loggerhead turtles at the Mon Repos rookery.
  • To explore potential mating behaviors, such as mating between nesting events.

Main Methods:

  • Analysis of genotypic ratios within loggerhead turtle (Caretta caretta) clutches.

Related Experiment Videos

  • Comparison of observed genotypic frequencies against expected Mendelian ratios under single paternity.
  • Statistical evaluation to determine deviations from expected ratios.
  • Main Results:

    • Genotypic ratios in loggerhead turtle clutches significantly deviated from Mendelian expectations.
    • Evidence of multiple insemination was found in approximately one-third of the studied clutches.
    • Observations suggest that loggerhead turtles may engage in mating activities between nesting events.

    Conclusions:

    • Multiple mating and multiple insemination appear to be the predominant breeding pattern for loggerhead turtles (Caretta caretta) at Mon Repos.
    • The findings challenge the traditional assumption of single paternity in loggerhead turtle reproduction.
    • Further research into the timing and frequency of mating behaviors, including inter-nesting mating, is warranted for effective conservation strategies.