We chose a subset of individuals within each pedigree so as to maximize power under the most likely inheritance mode, as follows: (i) We sequenced a single affected individual and a single unaffected individual from pedigrees with a suggestive per-pedigree linkage peak and predicted dominant inheritance. (ii) We sequenced a parent-child trio or quartet from pedigrees with a single, suggestive per-pedigree linkage peak and either dominant or recessive inheritance. In pedigrees for which polygenic inheritance was more likely, we sequenced either (iii) a subset of affected individuals and 0-1 unaffected individuals or (iv) all available individuals.