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

Mitochondrial DNA sequence evolution in the Arctoidea

Y P Zhang1, O A Ryder

  • 1Center for Reproduction of Endangered Species, Zoological Society of San Diego, CA 92112.

Proceedings of the National Academy of Sciences of the United States of America
|October 15, 1993
PubMed
Summary
This summary is machine-generated.

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

Precise Measurement of the Chromoelectric Dipole Moment of the Charm Quark.

Physical review letters·2026
Same author

Experimental evidence of ambient turbulence preceding the thermal quench of disruptive plasmas.

Physical review. E·2026
Same author

Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon-Antihyperon Pairs.

Physical review letters·2026
Same author

Observation of Λ[over ¯]p→K^{+}π^{+}π^{-}π^{0} and Λ[over ¯]p→K^{+}π^{+}π^{-}2π^{0}.

Physical review letters·2026
Same author

First Measurement of the D_{s}^{+}→K^{0}μ^{+}ν_{μ} Decay.

Physical review letters·2026
Same author

Observation of the Electromagnetic Radiative Decays of the Λ(1520) and Λ(1690) to γΣ^{0}.

Physical review letters·2026
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

Phylogenetic analysis reveals the giant panda is a bear, while the lesser panda is distantly related to bears and New World procyonids. This study clarifies arctoid evolutionary relationships.

Area of Science:

  • Molecular Biology
  • Evolutionary Biology
  • Genetics

Background:

  • The evolutionary relationships of Arctoidea, including pandas and bears, have been historically debated.
  • Previous classifications have been challenged by new genetic data.

Purpose of the Study:

  • To resolve the taxonomic placement of the giant panda and lesser panda within the Arctoidea superfamily.
  • To investigate the evolutionary rates and divergence times among various arctoid lineages.

Main Methods:

  • Sequencing of mitochondrial genes: cytochrome b, 12S rRNA, tRNA(Thr), and tRNA(Pro).
  • Phylogenetic analysis using parsimony to reconstruct evolutionary relationships.
  • Comparative analysis of nucleotide substitution rates across different arctoid lineages.

Related Experiment Videos

Main Results:

  • The giant panda is confirmed to be closely related to Ursidae (bears).
  • The lesser panda's phylogenetic position is distant from bears and New World procyonids.
  • Significant variation in evolutionary rates was observed among arctoid lineages, with kinkajous evolving fastest.
  • The polar bear and spectacled bear diverged approximately 2 million years ago.

Conclusions:

  • This study provides molecular evidence clarifying the complex evolutionary history of arctoids.
  • The findings resolve long-standing taxonomic uncertainties regarding panda classification.
  • Understanding varying evolutionary rates offers insights into mammalian molecular evolution.