Genome-Wide SNP Analysis Reveals Distinct Origins of Trypanosoma evansi and Trypanosoma equiperdum. (25th May 2017)

• Record Type: Journal Article
• Authors: Cuypers, Bart; Van den Broeck, Frederik; Van Reet, Nick; Meehan, Conor J.; Cauchard, Julien; Wilkes, Jonathan M.; Claes, Filip; Goddeeris, Bruno; Birhanu, Hadush; Dujardin, Jean-Claude; Laukens, Kris; Büscher, Philippe; Deborggraeve, Stijn
• Is Part Of: Genome biology and evolution. Volume 9:Number 8(2017:Aug.)
• Page Start: 1990
• Page End: 1997
• Publication Date: 2017-05-25
• Subjects: Trypanosoma evansi -- Trypansoma equiperdum -- Trypanozoon -- whole genome sequencing -- SNP analysis -- phylogeny; Genomics -- Periodicals; Genes -- Periodicals; 572.8605
• DOI: 10.1093/gbe/evx102
• Languages: English
• ISSNs: 1759-6653

Abstract

Abstract: Trypanosomes cause a variety of diseases in man and domestic animals in Africa, Latin America, and Asia. In the Trypanozoon subgenus, Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense cause human African trypanosomiasis, whereas Trypanosoma brucei brucei, Trypanosoma evansi, and Trypanosoma equiperdum are responsible for nagana, surra, and dourine in domestic animals, respectively. The genetic relationships between T. evansi and T. equiperdum and other Trypanozoon species remain unclear because the majority of phylogenetic analyses has been based on only a few genes. In this study, we have conducted a phylogenetic analysis based on genome-wide SNP analysis comprising 56 genomes from the Trypanozoon subgenus. Our data reveal that T. equiperdum has emerged at least once in Eastern Africa and T. evansi at two independent occasions in Western Africa. The genomes within the T. equiperdum and T. evansi monophyletic clusters show extremely little variation, probably due to the clonal spread linked to the independence from tsetse flies for their transmission.