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

Evolutionary trends in sperm structure.

B Baccetti

    Comparative Biochemistry and Physiology. A, Comparative Physiology
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Spermatozoa evolved diverse structures for fertilization across marine and terrestrial environments. Adaptations include flagellar changes and alternative motility for successful reproduction in different species.

    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

    News on Sperm Evolution.

    Development, growth & differentiation·2023
    Same author

    History of the early dipteran systematics in Italy: from Lyncei to Battista Grassi.

    Parassitologia·2010
    Same author

    Sperm aneuploidies and low progressive motility.

    Human reproduction (Oxford, England)·2007
    Same author

    Structural sperm and aneuploidies studies in a case of spermatogenesis recovery after the use of androgenic anabolic steroids.

    Journal of assisted reproduction and genetics·2007
    Same author

    Ultrastructural sperm study in infertile males with microdeletions of Y chromosome.

    Journal of submicroscopic cytology and pathology·2007
    Same author

    Transmission electron microscopy, immunocytochemical and fluorescence in situ hybridisation studies in a case of 100% necrozoospermia: case report.

    Andrologia·2006
    Same journal

    Taste synergism between monosodium glutamate and 5'-ribonucleotide in mice.

    Comparative biochemistry and physiology. A, Comparative physiology·1992
    Same journal

    Dendritic and sustained shifts in potential to electrical stimulation of the anuran tectal surface.

    Comparative biochemistry and physiology. A, Comparative physiology·1992
    Same journal

    Evidence for angiotensin-like molecules in the central nervous system of the leech Theromyzon tessulatum (O.F.M.). A possible diuretic effect.

    Comparative biochemistry and physiology. A, Comparative physiology·1992
    Same journal

    Stabilization of the adenylate energy charge in erythrocytes of rats and humans at high altitude hypoxia.

    Comparative biochemistry and physiology. A, Comparative physiology·1992
    Same journal

    The primary culture of mouse adipocyte precursor cells in defined medium.

    Comparative biochemistry and physiology. A, Comparative physiology·1992
    Same journal

    Uptake of uric acid and p-aminohippurate (PAH) by renal cortical slices of various mammals.

    Comparative biochemistry and physiology. A, Comparative physiology·1992
    See all related articles

    Area of Science:

    • * Reproductive biology and evolutionary morphology of spermatozoa.
    • * Comparative analysis of fertilization mechanisms in invertebrates and vertebrates.

    Background:

    • * Marine invertebrates utilize flagellate spermatozoa with acrosomal complexes for external fertilization.
    • * Terrestrial animals with internal fertilization evolved elongated spermatozoa with tail cytoskeletal organelles.

    Purpose of the Study:

    • * To investigate the evolutionary adaptations of spermatozoa in relation to fertilization strategies.
    • * To explore morphological changes in spermatozoa from aquatic to terrestrial environments.

    Main Methods:

    • * Comparative morphological analysis of spermatozoa across diverse animal phyla.
    • * Review of existing literature on fertilization biology and sperm evolution.

    Related Experiment Videos

    Main Results:

    • * Spermatozoa in higher terrestrial forms exhibit elongated shapes and modified flagella, sometimes becoming aflagellate.
    • * Motility apparatus and acrosomal complex vary based on reproductive strategy and egg envelope structures.

    Conclusions:

    • * Spermatozoa exhibit significant evolutionary plasticity in response to fertilization mode and environmental pressures.
    • * Adaptations in sperm structure are crucial for reproductive success in both marine and terrestrial habitats.