1. Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
2. National Institute of Amazonian Research (INPA/Manaus), National Institute of Amazonian Research (INPA), Manaus, AM, Brazil
3. Department of Comparative Biosciences, University of Illinois, Urbana Champaign, IL, USA