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Genome-Wide Association Studies in Dogs and Humans Identify as a Risk Variant for Cleft Lip and Palate


Cleft lip with or without cleft palate (CL/P) is a commonly occurring birth defect that can lead to a lifetime of complications in affected children. To better understand the genetic cause of these disorders, we investigated CL/P in both dogs and humans. Genome-wide association studies in both species independently identify ADAMTS20 as a candidate gene for CL/P development. In dogs, a deletion within a functional domain of ADAMTS20 is responsible for CL/P in the Nova Scotia Duck Tolling Retriever dog breed. In humans, an associated region containing the same gene, ADAMTS20, was identified in a study population of native Guatemalans. Subsequent sequencing in humans was unable to identify a causative mutation within the coding region of ADAMTS20 in the Guatemalan cohort; however, sequencing of ADAMTS20 in additional cases with CL/P identified four novel coding variants. This work provides genetic evidence for a role for ADAMTS20 in CL/P development in both dogs and humans.


Vyšlo v časopise: Genome-Wide Association Studies in Dogs and Humans Identify as a Risk Variant for Cleft Lip and Palate. PLoS Genet 11(3): e32767. doi:10.1371/journal.pgen.1005059
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.pgen.1005059

Souhrn

Cleft lip with or without cleft palate (CL/P) is a commonly occurring birth defect that can lead to a lifetime of complications in affected children. To better understand the genetic cause of these disorders, we investigated CL/P in both dogs and humans. Genome-wide association studies in both species independently identify ADAMTS20 as a candidate gene for CL/P development. In dogs, a deletion within a functional domain of ADAMTS20 is responsible for CL/P in the Nova Scotia Duck Tolling Retriever dog breed. In humans, an associated region containing the same gene, ADAMTS20, was identified in a study population of native Guatemalans. Subsequent sequencing in humans was unable to identify a causative mutation within the coding region of ADAMTS20 in the Guatemalan cohort; however, sequencing of ADAMTS20 in additional cases with CL/P identified four novel coding variants. This work provides genetic evidence for a role for ADAMTS20 in CL/P development in both dogs and humans.


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