Haplotype analysis was performed in 35 autosomal dominant polycystic k
idney disease (ADPKD) families typed with 13 markers close to the PKD1
locus. The identification of recombinants close to the PKD1 gene on c
hromosome 16p indicates that PKD1 lies between CMM65 distally and 26-6
proximally. In addition, three unlinked (PKD2) families and two famil
ies with potential new mutation were identified.