Article (Scientific journals)
Global and local genetic diversity at two microsatellite loci in Plasmodium vivax parasites from Asia, Africa and South America
Schousboe, Mette L; Ranjitkar, Samir; Rajakaruna, Rupika S et al.
2014In Malaria Journal, 13, p. 392
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Keywords :
Malaria; Genotyping; Diversity,; Heterozygosity; Plasmodium vivax; Microsatellite
Abstract :
[en] Background: Even though Plasmodium vivax has the widest worldwide distribution of the human malaria species and imposes a serious impact on global public health, the investigation of genetic diversity in this species has been limited in comparison to Plasmodium falciparum. Markers of genetic diversity are vital to the evaluation of drug and vaccine efficacy, tracking of P. vivax outbreaks, and assessing geographical differentiation between parasite populations. Methods: The genetic diversity of eight P. vivax populations (n = 543) was investigated by using two microsatellites (MS), m1501 and m3502, chosen because of their seven and eight base-pair (bp) repeat lengths, respectively. These were compared with published data of the same loci from six other P. vivax populations. Results: In total, 1,440 P. vivax samples from 14 countries on three continents were compared. There was highest heterozygosity within Asian populations, where expected heterozygosity (He) was 0.92-0.98, and alleles with a high repeat number were more common. Pairwise FST revealed significant differentiation between most P. vivax populations, with the highest divergence found between Asian and South American populations, yet the majority of the diversity (~89%) was found to exist within rather than between populations. Conclusions: The MS markers used were informative in both global and local P. vivax population comparisons and their seven and eight bp repeat length facilitated population comparison using data from independent studies. A complex spatial pattern of MS polymorphisms among global P. vivax populations was observed which has potential utility in future epidemiological studies of the P. vivax parasite.
Disciplines :
Immunology & infectious disease
Author, co-author :
Schousboe, Mette L;  University of Copenhagen, Copenhagen, Denmark > Centre for Medical Parasitology, Institute of International Health, Immunology, and Microbiology
Ranjitkar, Samir;  University Hospital, Copenhagen, Denmark > Department of Infectious Diseases, Copenhagen
Rajakaruna, Rupika S;  University of Peradeniya, Peradeniya 20400, Sri Lanka. > Department of Zoology
Amerasinghe, Priyanie H;  International Water Management Institute, Hyderabad, Andhra Pradesh, India
Konradsen, Flemming;  University Hospital, Copenhagen, Denmark > Department of Infectious Diseases, Copenhagen
Morales Yanes, Francisco Javier ;  Universidad San Francisco de Quito. Robles y Pampite, Cumbaya, Ecuador > Instituto de Microbiología
Ord, Rosalynn;  London School of Hygiene and Tropical Medicine, Keppel Street, London WC1 4HT, UK. > Faculty of Infectious and Tropical Diseases
Rowland, Mark;  London School of Hygiene and Tropical Medicine, Keppel Street, London WC1 4HT, UK. > Faculty of Infectious and Tropical Diseases
Pearce, Richard;  London School of Hygiene and Tropical Medicine, Keppel Street, London WC1 4HT, UK. > Faculty of Infectious and Tropical Diseases
Leslie, Toby;  London School of Hygiene and Tropical Medicine, Keppel Street, London WC1 4HT, UK. > Faculty of Infectious and Tropical Diseases
Gadalla, , Nahla;  London School of Hygiene and Tropical Medicine, Keppel Street, London WC1 4HT, UK. > Faculty of Infectious and Tropical Diseases
Bygbjerg, Ib C;  University of Copenhagen, Copenhagen, Denmark. > Centre for Medical Parasitology, Institute of International Health, Immunology, and Microbiology,
Alifrangis, Michael;  University of Copenhagen, Copenhagen, Denmark. > Centre for Medical Parasitology, Institute of International Health, Immunology, and Microbiology,
Roper, Cally;  London School of Hygiene and Tropical Medicine, Keppel Street, London WC1 4HT, UK. > Faculty of Infectious and Tropical Diseases
More authors (4 more) Less
Language :
English
Title :
Global and local genetic diversity at two microsatellite loci in Plasmodium vivax parasites from Asia, Africa and South America
Publication date :
October 2014
Journal title :
Malaria Journal
eISSN :
1475-2875
Publisher :
BioMed Central, United Kingdom
Volume :
13
Pages :
392
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
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