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German Shepherd Database Project

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    Pedigree of

    Rex of Sonoma

    November 28, 1957
    AKC W993358
    Black, Silver
    Breeder: M G & J B Addington

    Notes: COI 5.68%

    Teodore von Appen
    July 22, 1955
    AKC W757090
    Black, Silver

    Prince von Lotringer
    June 2, 1952
    AKC W387545
    Black, Tan

    Kip of Loring
    May 31, 1950
    AKC W337599
    Black, Fawn

    Leda the Beachcomber
    March 3, 1950
    AKC W201061
    Black, Tan

    Thompson Lady
    December 10, 1950
    AKC W329307
    Black, Tan

    Ayron of Younghaven
    December 7, 1948
    AKC W141240
    Black, Cream

    May 28, 1949
    AKC W207352
    Tan, Black

    Heide von Fuerstenstein
    September 16, 1953
    AKC W452361
    Black, Silver

    Ace of Marmaris
    March 3, 1952
    AKC W370793
    Black, Silver

    Thor of Thunder Cloud
    August 19, 1949
    AKC W164728
    Black, Cream

    Gerda of Grettamarc
    June 21, 1950
    AKC W198993
    Black, Cream

    Elissa von Furestenstein
    March 31, 1951
    AKC W345204
    Black, Tan

    Argo von Grindelwald
    July 29, 1945
    AKC W2938
    Black, Cream Markings

    Ada von Fuerstenstein
    March 17, 1945
    AKC W33377
    Black, Tan

    Legend for German Shepherd Gene Study
      White Carrier
      Black Carrier

    The German Shepherd Gene Study tracks the recessive "masking" white and recessive black genes forward through the generations.

    Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene, with one allele provided by each parent. Often, it is impossible to determine which two alleles of a gene are present within an dog's chromosomes based solely on the outward appearance of that dog. However, an allele that is hidden, or not expressed by, can still be passed on to that dog's offspring and expressed in a later generation.

    German Shepherds can carry one or both of the recessive white "masking" and/or the recessive black gene.

    (A masking gene masks the real color and pattern of the dog. The only way the gene can be expressed in some of the offspring is if both parents carry it. For example, when a white dog is bred to a non-white dog that does not carry the white gene, none of the offspring will express the white coat but they will be carriers of the white gene. If those offspring are bred to a white, some of their offspring will express the white coat color. White bred to white will always produce white offspring.)

    German Shepherd artwork on this site created by AHEAD Graphics. Visit their site for more talented artwork and custom designs.

    The German Shepherd Dog Database Project makes no guarantees as to the accuracy of the data published at this site. We have made every effort to verify all entries, but the German Shepherd Dog Database Project is not a registry so all data included has been submitted by dog owners or taken from registry reports and AKC Stud Books. Please contact us to report any errors or omission.

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