Figure 2.

Pedigree of selected Maine Coon cats from this study. Open symbols represent cats that showed regular kidneys in the ultrasound examination. Black filled symbols indicate cats affected with renal cysts. Green filled symbols and orange filled symbols indicate changes of unknown significance and chronic kidney disease, respectively. For animals with a question mark the renal phenotype is unknown. Note that three cats with renal cysts in this pedigree descend from non-affected parents. Clear familial clustering around a popular sire can be noted for renal changes of unknown significance; three cats with such changes also descend from non-affected parents