Figure 1. Characterization of the Chinese family affected with Rieger syndrome. (A) Pedigree analysis by inspection reveals autosomal-dominant inheritance. Darkened symbols indicate affected; clear symbols indicate unaffected. Peripheral blood samples were not available for members marked with *. An arrow indicates the proband. (B) Panoramic radiograph of individual III:4 depicts the typical pattern of congenitally missing teeth in the family. The cross indicates the lack of permanent teeth.