Pedigree of

Nanook Koonan

Jun 11, 1958
AKC W989307
Breeder: Gladys E Updike

Notes: COI 5.29%

Gray's White Eagle
Nov 15, 1956
AKC W853616
White, Cream

Magician of Gerill
Mar 31, 1953
AKC W401751
Black, Tan

Ch (US) 
Dandy of Walruth

Jul 16, 1944
AKC A850677

Echo of Temple

Jul 14, 1951
AKC W270963
Black, Tan

Maxinkuckee Kristen
Dec 4, 1954
AKC W621709
Black, Silver

Maxinkuckee Silver
May 24, 1951
AKC W327044
Black, Silver

Cropper Fraulein Alfa
Oct 24, 1952
AKC W473463
Black, Silver

Penny Virginia Pearl
Nov 3, 1956
AKC W786337

King Estle
May 12, 1955
AKC W666280
Silver Grey, Black

Cano of Russ-Ken
Apr 23, 1953
AKC W429131
Black, Tan, Silver

Lake-Trail Lady Jane
Jun 25, 1951
AKC W313499

Queen Bell of the Gables
Feb 12, 1952
AKC W322493
Silver Grey

Blanco of Long Lane
Jan 12, 1951
AKC W294766

Silver Bell of Lake Trail
Aug 3, 1948
AKC W113437
Silver Grey

Legend for German Shepherd Gene Study
  White Carrier
  Black Carrier
  Blue Carrier
  Liver 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.)

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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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