We applied the same methods to predict height in African target samples from the UK Biobank (row 6 of Table 1). We used European summary statistics from UK Biobank (113,660 samples; British ancestry only) as European training data, African summary statistics from ref. (N'Diaye et al., 2011) (20,427 samples) as African training data, and African UK Biobank genotypes and phenotypes (1,745 samples) as African validation data.