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

Developmental modularity and the evolutionary diversification of arthropod limbs.

T A Williams1, L M Nagy

  • 1Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut 06520, USA. terri.williams@yale.edu

The Journal of Experimental Zoology
|October 13, 2001
PubMed
Summary

Arthropod segmentation and limb evolution are explored. While limb primordia share common identity, evidence for a single, shared coordinate system or full developmental autonomy is lacking, suggesting segment modularity is a derived trait.

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

The Pathogenesis of Tabes Dorsalis.

Atlanta journal-record of medicine·2022
Same author

The Pathogenesis of Tabes Dorsalis.

Atlanta journal-record of medicine·2022
Same author

Mitochondrial DNAs provide insight into trypanosome phylogeny and molecular evolution.

BMC evolutionary biology·2020
Same author

Transporter gene acquisition and innovation in the evolution of Microsporidia intracellular parasites.

Nature communications·2018
Same author

Locomotion in Developing Artemia Larvae: Mechanical Analysis of Antennal Propulsors Based on Large-Scale Physical Models.

The Biological bulletin·2017
Same author

A Model of Rowing Propulsion and the Ontogeny of Locomotion in Artemia Larvae.

The Biological bulletin·2017

Area of Science:

  • Developmental Biology
  • Evolutionary Biology
  • Arthropod Biology

Background:

  • Segmentation is a key arthropod characteristic, driving diversification through segment differentiation.
  • Arthropod appendages are serially repeated structures, raising questions about their modular evolution.
  • Understanding limb development is crucial for evaluating the modularity of arthropod segmentation.

Purpose of the Study:

  • To investigate if arthropod segments evolve as independent modules.
  • To determine if arthropod limbs share a common patterning system and developmental autonomy.
  • To assess the evolutionary origin of segment modularity in arthropods.

Main Methods:

  • Comparative analysis of arthropod limb development, focusing on similarities and differences.

Related Experiment Videos

  • Utilizing Drosophila as a model organism for appendage patterning studies.
  • Examining evidence for shared coordinate systems and semi-autonomy in limb morphogenesis.

    • Main Results:

    • Appendage primordia share elements of common identity, positioned by segmental coordinates.
    • No evidence found for a single coordinate system shared across limbs or limb branches.
    • Limited data on developmental semi-autonomy, but some findings suggest limbs are not always decoupled from neighbors.

    Conclusions:

    • Arthropod limb development does not appear to rely on a single, universal coordinate system.
    • Developmental semi-autonomy, a key modularity trait, is not consistently observed.
    • Segment modularity in arthropods is likely a derived character, not a fundamental ancestral state.