10.1371/journal.pntd.0004491
Soumaïla Pagabeleguem
Soumaïla
Pagabeleguem
Geoffrey Gimonneau
Geoffrey
Gimonneau
Momar Talla Seck
Momar
Talla Seck
Marc J. B. Vreysen
Marc
J. B. Vreysen
Baba Sall
Baba
Sall
Jean-Baptiste Rayaissé
Jean-Baptiste
Rayaissé
Issa Sidibé
Issa
Sidibé
Jérémy Bouyer
Jérémy
Bouyer
Sophie Ravel
Sophie
Ravel
A Molecular Method to Discriminate between Mass-Reared Sterile and Wild Tsetse Flies during Eradication Programmes That Have a Sterile Insect Technique Component
Public Library of Science
2016
SIT
tsetse control campaigns
PATTEC
livestock production systems
technique
Trypanosomosis Eradication Campaign
insect pest control programs
dye
monitoring traps
component
Glossina palpalis gambiensis
Senegal
discrimination
cytochrome oxidase haplotypes
DNA
Wild Tsetse Flies
mitochondrial gene cytochrome oxidase
project
pest management strategy
Sterile Insect Technique Component BackgroundThe Government
fluorescence
Burkina Faso colony
2016-02-22 10:04:17
Dataset
https://plos.figshare.com/articles/dataset/A_Molecular_Method_to_Discriminate_between_Mass_Reared_Sterile_and_Wild_Tsetse_Flies_during_Eradication_Programmes_That_Have_a_Sterile_Insect_Technique_Component/2735164
<div><p>Background</p><p>The Government of Senegal has embarked several years ago on a project that aims to eradicate <i>Glossina palpalis gambiensis</i> from the Niayes area. The removal of the animal trypanosomosis would allow the development more efficient livestock production systems. The project was implemented using an area-wide integrated pest management strategy including a sterile insect technique (SIT) component. The released sterile male flies originated from a colony from Burkina Faso.</p><p>Methodology/Principal Findings</p><p>Monitoring the efficacy of the sterile male releases requires the discrimination between wild and sterile male <i>G</i>. <i>p</i>. <i>gambiensis</i> that are sampled in monitoring traps. Before being released, sterile male flies were marked with a fluorescent dye powder. The marking was however not infallible with some sterile flies only slightly marked or some wild flies contaminated with a few dye particles in the monitoring traps. Trapped flies can also be damaged due to predation by ants, making it difficult to discriminate between wild and sterile males using a fluorescence camera and / or a fluorescence microscope. We developed a molecular technique based on the determination of cytochrome oxidase haplotypes of <i>G</i>. <i>p</i>. <i>gambiensis</i> to discriminate between wild and sterile males. DNA was isolated from the head of flies and a portion of the 5’ end of the mitochondrial gene cytochrome oxidase I was amplified to be finally sequenced. Our results indicated that all the sterile males from the Burkina Faso colony displayed the same haplotype and systematically differed from wild male flies trapped in Senegal and Burkina Faso. This allowed 100% discrimination between sterile and wild male <i>G</i>. <i>p</i>. <i>gambiensis</i>.</p><p>Conclusions/Significance</p><p>This tool might be useful for other tsetse control campaigns with a SIT component in the framework of the Pan-African Tsetse and Trypanosomosis Eradication Campaign (PATTEC) and, more generally, for other vector or insect pest control programs.</p></div>