Fig. 4From: Environmental isolation explains Iberian genetic diversity in the highly homozygous model grass Brachypodium distachyon Unrooted neighbor-joining tree of the studied Brachypodium distachyon populations based on Nei’s Da genetic distance. Numbers associated with braches indicate bootstrap values based on 1000 replications. Populations symbols and colours followed the ones depicted in Fig. 3. Population codes are indicated in Table 1. Please note that only a small number of individuals can be seen since most individuals bear identical alleles within each populationBack to article page