Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1976 Oct 27;8(3):271-82.
doi: 10.1007/BF01731000.

Penguin evolution: protein comparisons demonstrate phylogenetic relationship to flying aquatic birds

Penguin evolution: protein comparisons demonstrate phylogenetic relationship to flying aquatic birds

C Y Ho et al. J Mol Evol. .

Abstract

Quantitative immunological comparisons of three avian proteins, transferrin, ovalbumin, and penalbumin, indicate that penguins are phylogenetically most closely related to loons, albatrosses, herons, and grebes. These data support the theory that the ancestors of penguins were flying oceanic birds and that flightlessness in penguins has evolved independently from flightlessness in ratites.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Science. 1967 Jan 20;155(3760):279-84 - PubMed
    1. Biochemistry. 1966 Mar;5(3):952-8 - PubMed
    1. Arch Biochem Biophys. 1968 Mar 20;124(1):548-55 - PubMed
    1. Syst Zool. 1969 Dec;18(4):416-22 - PubMed
    1. Proc Natl Acad Sci U S A. 1969 Aug;63(4):1088-93 - PubMed

Publication types