RT Journal Article T1 Founding mutations explains hotspots of polycystic kidney disease in Southern Spain. A1 García Rabaneda, Carmen A1 Perea, Francisco A1 Bellido Díaz, María Luz A1 Morales García, Ana I A1 Martínez Atienza, Margarita A1 Sousa Silva, Lisbeth A1 González, Miguel Ángel García A1 Ruiz-Cabello, Francisco A1 Esteban de la Rosa, Rafael J K1 ADPKD K1 Southern Spain K1 common ancestor K1 disease-associated haplotype K1 founding mutation K1 hotspots AB Our group identified two pathogenic variants on the PKD1 gene, c.10527_10528delGA and c.7292T>A, from unrelated families. They came from two small counties in Granada, with 61 and 26 autosomal dominant polycystic kidney disease (ADPKD) individuals affected. To determine a common ancestor, healthy and ADPKD individuals from these families were genotyped by analysing four microsatellites located on chromosome 16. Our study identified a common haplotype in all ADPKD individuals. These findings underpin our hypothesis of the founder effect and explain why there is a high frequency of ADPKD in small regions. Determining hotspots of ADPKD will help to better plan healthcare in the future. SN 2048-8505 YR 2020 FD 2020-12-10 LK https://hdl.handle.net/10668/26228 UL https://hdl.handle.net/10668/26228 LA en DS RISalud RD Apr 5, 2025