Organization and gene content of Trypanosoma cruzi chromosome ends. Schematic representation of T. cruzi chromosome ends (Tels) showing their distribution in eleven distinct groups according to the subtelomeric gene content. One representative member (Tel) of each group has been shown. Each color box indicates a subtelomeric gene (TriTrypDB - http://tritrypdb.org/tritrypdb/), and the red boxes denote the telomeric repeats (TTAGGG)n. The gray boxes represent interstitial genes, including genes encoding hypothetical proteins; a complete list of these genes can be found in Additional file 1. The maps are to scale and the genomic coordinates are indicated at the beginning and end of each map. Blue arrows indicate the transcription sense. Each chromosome end assembly is oriented 5’ to 3’ according to the TriTrypDB annotation.