Figure 1: Evolution and syntenic analysis of the G. hirsutum genome.

(a) G. hirsutum and six other genomes descended from common eudicot genome ancestors. Colored blocks within modern chromosomes of the species represent the chromatin origin from seven ancestral chromosomes. Numbers denote the predicted divergence times (MYA) and each red dot represents one whole genome duplication. (b) Syntenic blocks between the At subgenome in G. hirsutum and the diploid A genome in G. arboreum genome. (c) Syntenic blocks between the Dt subgenome in G. hirsutum and the diploid D genome in G. raimondii.