Phylogenetic position of Leishmania isolates from Khyber Pakhtunkhwa province of Pakistan.

Abstract:

:Several species of the genus Leishmania are causative agents of cutaneous leishmaniasis in Pakistan. This study aimed to determine phylogenetic placement of Leishmania species causing cutaneous leishmaniasis in Khyber Pakhtunkhwa province, Pakistan (34 Leishmania tropica, 3 Leishmania infantum), in-relation to species from other geographical areas using gene sequences encoding cytochrome b (cytb) and internal transcribed spacer 2 (its2). Based on cytochrome b sequence analysis, L. tropica strains from Pakistan and other geographical regions were differentiated into two genotype groups, A and B. Within the province, five distinct L. tropica genotypes were recognized; two in group A, three in group B. Two L. infantum isolates from the province were closely associated with both Afro-Eurasian and American species of the Leishmania donovani complex, including Leishmania chagasi, L. infantum and L. donovani from Sudan and Ethiopia; while a third L. infantum isolate could not be differentiated from visceralizing Kenyan and Indian L. donovani. We observed apposite phylogenetic placement of CL-causing L. tropica and L. infantum from Khyber Pakhtunkhwa. Affinities ascribed to Leishmania spp. From the region are valuable in tracing potential importation of leishmaniasis.

journal_name

Exp Parasitol

authors

Khan NH,Messenger LA,Wahid S,Sutherland CJ

doi

10.1016/j.exppara.2016.05.006

subject

Has Abstract

pub_date

2016-08-01 00:00:00

pages

61-6

eissn

0014-4894

issn

1090-2449

pii

S0014-4894(16)30096-0

journal_volume

167

pub_type

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