Network analysis of the s6pp gene duplication region. The network was constructed using the NETWORK 126.96.36.199 software  with default parameters. From a 1,539 bp alignment, 262 variable characters were used to reconstruct the network. The main figure is a closeup of part of the entire network which shown in the top left. The size of the circle is relative to the number of sequences in that haplotype. Thick bold circles represent the five main haplotypes. A single dash denotes a single substitution; the distance between clusters is therefore proportional to the number of substitutions. Numbers between parentheses in the legend show the number of cultivars analyzed.