Fig. 1
Methods of identifying patterns of signatures of selection. a Runs of homozygosity (ROH). From left to right: the number of consecutive homozygous SNPs increases, generating a genomic region where the individual is homozygous at all sites, i.e. a ROH. b Fixation index (FST). From left to right: allele frequencies of individuals in the population change until it differentiates into two different sub-populations (FST = 1). c Variation in linkage disequilibrium (VarLD), which searches for differences in linkage disequilibrium (LD) patterns between populations. From left to right: an advantageous allele (red star) can modify the LD in a population because of the selective sweep containing the SNPs surrounding it, i.e. the haplotype of this advantageous allele (Haplotype 2)