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

Phylogenetic relationships among algae based on complete large-subunit rRNA sequences.

A Ben Ali, R De Baere, G Van der Auwera

    International Journal of Systematic and Evolutionary Microbiology
    |June 20, 2001
    PubMed
    Summary

    This study sequenced large-subunit ribosomal RNA (LSU rRNA) from various algae. It clarifies evolutionary relationships, particularly within heterokont algae, using combined SSU and LSU rRNA data for robust phylogenetic insights.

    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

    Comparative phenomics and targeted use of genomics reveals variation in carbon and nitrogen assimilation among different Brettanomyces bruxellensis strains.

    Applied microbiology and biotechnology·2015
    Same author

    Crystal structure of bis-(propane-1,3-di-ammonium) hexa-fluorido-aluminate fluoride trihydrate.

    Acta crystallographica. Section E, Structure reports online·2014
    Same author

    Genome Sequence of Serratia plymuthica V4.

    Genome announcements·2014
    Same author

    Exoproteome analysis of Starmerella bombicola results in the discovery of an esterase required for lactonization of sophorolipids.

    Journal of proteomics·2014
    Same author

    Heat-shock protein 70 gene sequencing for Leishmania species typing in European tropical infectious disease clinics.

    Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin·2013
    Same author

    Overview of tomato (Solanum lycopersicum) candidate pathogen recognition genes reveals important Solanum R locus dynamics.

    The New phytologist·2012

    Area of Science:

    • * Molecular Biology
    • * Phylogenetics
    • * Algology

    Background:

    • * Understanding algal evolutionary history is crucial for classifying diverse eukaryotic lineages.
    • * Previous studies using small-subunit rRNA (SSU rRNA) provided some insights but lacked resolution for certain groups, especially heterokont algae.

    Purpose of the Study:

    • * To determine the phylogenetic positions of chlorarachniophytes, cryptomonads, haptophytes, bacillariophytes, dictyochophytes, and pelagophytes.
    • * To elucidate the evolutionary relationships among different classes within the heterokont algae.
    • * To improve phylogenetic resolution by combining large-subunit rRNA (LSU rRNA) and SSU rRNA data.

    Main Methods:

    • * Sequencing of complete or nearly complete LSU rRNA genes from various algal representatives.

    Related Experiment Videos

  • * Phylogenetic analyses using maximum likelihood and other tree-construction methods.
  • * Concatenated alignment of SSU rRNA and LSU rRNA sequences for enhanced phylogenetic resolution.

    • Main Results:

    • * Chlorarachniophytes, cryptomonads, and haptophytes appear as independent evolutionary lineages, with no clear affiliation to other eukaryotic taxa based on LSU rRNA.
    • * Heterokont algae form a well-supported monophyletic group.
    • * Combined SSU and LSU rRNA data resolved relationships within heterokonts, identifying sister taxa: phaeophytes/xanthophytes, pelagophytes/dictyochophytes, and chrysophytes/eustigmatophytes with high statistical support.

    Conclusions:

    • * LSU rRNA phylogenies support the distinct evolutionary paths of chlorarachniophytes, cryptomonads, and haptophytes.
    • * Combining SSU and LSU rRNA data significantly enhances the resolution of phylogenetic relationships within heterokont algae.
    • * The study provides robust evidence for specific sister-group relationships among key heterokont classes, refining algal taxonomy and evolutionary understanding.