The author(s) declare that they have no competing interests.
Design and conception of the study (JN, JPL, TASA, GT, CMF); execution of the experiments (JN); manuscript preparation (JN, JPL, CMF); sequence analysis, alignment and phylogeny (JN, CMF). All authors read and approved the final manuscript.
This study was funded by the Crop Protection Programme of the UK's Department for International Development (DFID) through the Tropical Whitefly IPM Project of the System-wide Programme for Integrated Pest Management (SP-IPM). SP-IPM is an inter-centre programme established by the Consultative Group for International Agricultural Research (CGIAR). The senior author was also supported through a graduate fellowship from the International Institute of Tropical Agriculture (IITA) and by the Donald Danforth Plant Science Center, which supported some of the costs in St. Louis. The assistance of Mr. Cyprian Alloyce Rajabu of Plant Protection Division in Mwanza during sample collection is highly appreciated. Special thanks are due to other colleagues for helping in various ways, especially Dr. Justin Pita of the Noble Research Foundation, Ardmore, Oklahoma, USA, and Ismaël Ben F. Fofana of the International Laboratory of Tropical Agricultural Biotechnology (ILTAB), Donald Danforth Plant Science Center, St. Louis, MO, USA for his technical assistance. The views expressed do not necessarily represent those of DFID.