TY - JOUR
T1 - Evolutionary genomics of epidemic visceral leishmaniasis in the Indian subcontinent
AU - Imamura, Hideo
AU - Downing, Tim
AU - Van den Broeck, Frederik
AU - Sanders, Mandy J
AU - Rijal, Suman
AU - Sundar, Shyam
AU - Mannaert, An
AU - Vanaerschot, Manu
AU - Berg, Maya
AU - De Muylder, Géraldine
AU - Dumetz, Franck
AU - Cuypers, Bart
AU - Maes, Ilse
AU - Domagalska, Malgorzata
AU - Decuypere, Saskia
AU - Rai, Keshav
AU - Uranw, Surendra
AU - Bhattarai, Narayan Raj
AU - Khanal, Basudha
AU - Prajapati, Vijay Kumar
AU - Sharma, Smriti
AU - Stark, Olivia
AU - Schönian, Gabriele
AU - De Koning, Harry P
AU - Settimo, Luca
AU - Vanhollebeke, Benoit
AU - Roy, Syamal
AU - Ostyn, Bart
AU - Boelaert, Marleen
AU - Maes, Louis
AU - Berriman, Matthew
AU - Dujardin, Jean-Claude
AU - Cotton, James A
N1 - FTX; DOAJ
PY - 2016
Y1 - 2016
N2 - Leishmania donovani causes visceral leishmaniasis (VL), the second most deadly vector-borne parasitic disease. A recent epidemic in the Indian subcontinent (ISC) caused up to 80% of global VL and over 30,000 deaths per year. Resistance against antimonial drugs has probably been a contributing factor in the persistence of this epidemic. Here we use whole genome sequences from 204 clinical isolates to track the evolution and epidemiology of L. donovani from the ISC. We identify independent radiations that have emerged since a bottleneck coincident with 1960s DDT spraying campaigns. A genetically distinct population frequently resistant to antimonials has a two base-pair insertion in the aquaglyceroporin gene LdAQP1 that prevents the transport of trivalent antimonials. We find evidence of genetic exchange between ISC populations, and show that the mutation in LdAQP1 has spread by recombination. Our results reveal the complexity of L. donovani evolution in the ISC in response to drug treatment.
AB - Leishmania donovani causes visceral leishmaniasis (VL), the second most deadly vector-borne parasitic disease. A recent epidemic in the Indian subcontinent (ISC) caused up to 80% of global VL and over 30,000 deaths per year. Resistance against antimonial drugs has probably been a contributing factor in the persistence of this epidemic. Here we use whole genome sequences from 204 clinical isolates to track the evolution and epidemiology of L. donovani from the ISC. We identify independent radiations that have emerged since a bottleneck coincident with 1960s DDT spraying campaigns. A genetically distinct population frequently resistant to antimonials has a two base-pair insertion in the aquaglyceroporin gene LdAQP1 that prevents the transport of trivalent antimonials. We find evidence of genetic exchange between ISC populations, and show that the mutation in LdAQP1 has spread by recombination. Our results reveal the complexity of L. donovani evolution in the ISC in response to drug treatment.
U2 - 10.7554/eLife.12613
DO - 10.7554/eLife.12613
M3 - A1: Web of Science-article
SN - 2050-084X
VL - 5
JO - eLIFE
JF - eLIFE
M1 - e12613
ER -