Mariana Serpeloni, Newton M Vidal, Samuel Goldenberg, Andréa R Ávila* and Federico G Hoffmann*
* Corresponding authors: Andréa R Ávila aravila@fiocruz.br - Federico G Hoffmann federico.g.hoffmann@gmail.com
BMC Evolutionary Biology 2011, 11:7 doi:10.1186/1471-2148-11-7