Spectrum of genetic variants associated with anterior segment dysgenesis in South Florida

Saradadevi Thanikachalam, Elizabeth Hodapp, Ta C. Chang, Dayna Morel Swols, Filiz B. Cengiz, Shengru Guo, Mohammad F. Zafeer, Serhat Seyhan, Guney Bademci, William K. Scott, Alana Grajewski, Mustafa Tekin

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Anterior segment dysgenesis (ASD) comprises a wide spectrum of developmental conditions affecting the cornea, iris, and lens, which may be associated with abnormalities of other organs. To identify disease-causing variants, we performed exome sequencing in 24 South Florida families with ASD. We identified 12 likely causative variants in 10 families (42%), including single nucleotide or small insertion–deletion variants in B3GLCT, BMP4, CYP1B1, FOXC1, FOXE3, GJA1, PXDN, and TP63, and a large copy number variant involving PAX6. Four variants were novel. Each variant was detected only in one family. Likely causative variants were detected in 1 out of 7 black and 9 out of 17 white families. In conclusion, exome sequencing for ASD allows us to identify a wide spectrum of rare DNA variants in South Florida. Further studies will explore missing variants, especially in the black communities.

Original languageEnglish (US)
Article number350
Issue number4
StatePublished - Apr 2020


  • Anterior segment dysgenesis
  • Exome sequencing
  • Primary congenital glaucoma

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)


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