Performance of SNP barcodes to determine genetic diversity and population structure of Plasmodium falciparum in Africa

DC Argyropoulos, MH Tan, C Adobor, B Mensah… - Frontiers in …, 2023 - frontiersin.org
Panels of informative biallelic single nucleotide polymorphisms (SNPs) have been proposed
to be an economical method to fast-track the population genetic analysis of Plasmodium …

The Diversity, Multiplicity of Infection and Population Structure of P. falciparum Parasites Circulating in Asymptomatic Carriers Living in High and Low Malaria …

Z Abukari, R Okonu, SB Nyarko, AC Lo, CC Dieng… - Genes, 2019 - mdpi.com
Background: Diversity in Plasmodium falciparum poses a major threat to malaria control and
elimination interventions. This study utilized 12 polymorphic microsatellite (MS) markers and …

Competition for hosts modulates vast antigenic diversity to generate persistent strain structure in Plasmodium falciparum

S Pilosof, Q He, KE Tiedje, S Ruybal-Pesántez… - PLoS …, 2019 - journals.plos.org
In their competition for hosts, parasites with antigens that are novel to the host immune
system will be at a competitive advantage. The resulting frequency-dependent selection can …

Evolutionary analyses of the major variant surface antigen-encoding genes reveal population structure of Plasmodium falciparum within and between continents

G Tonkin-Hill, S Ruybal-Pesántez, KE Tiedje… - PLoS …, 2021 - journals.plos.org
Malaria remains a major public health problem in many countries. Unlike influenza and HIV,
where diversity in immunodominant surface antigens is understood geographically to inform …

Comparison of molecular surveillance methods to assess changes in the population genetics of Plasmodium falciparum in high transmission

A Ghansah, KE Tiedje, DC Argyropoulos… - Frontiers in …, 2023 - frontiersin.org
A major motivation for developing molecular methods for malaria surveillance is to measure
the impact of control interventions on the population genetics of Plasmodium falciparum as a …

Measuring changes in Plasmodium falciparum var census population size and structure in response to sequential malaria control interventions

KE Tiedje, Q Zhan, S Ruybal-Pésantez, G Tonkin-Hill… - medRxiv, 2023 - medrxiv.org
The diversity of Plasmodium falciparum within human hosts requires parasite population
size be defined in terms of parasite variation rather than the number of infected hosts. To …

Frequency-Dependent Competition Between Strains Imparts Persistence to Perturbations in a Model of Plasmodium falciparum Malaria Transmission

Q He, S Pilosof, KE Tiedje, KP Day… - Frontiers in ecology and …, 2021 - frontiersin.org
In high-transmission endemic regions, local populations of Plasmodium falciparum exhibit
vast diversity of the var genes encoding its major surface antigen, with each parasite …

Clinical malaria incidence following an outbreak in Ecuador was predominantly associated with Plasmodium falciparum with recombinant variant antigen gene …

S Ruybal-Pesántez, FE Sáenz, S Deed, EK Johnson… - MedRxiv, 2021 - medrxiv.org
To better understand the factors underlying the continued incidence of clinical episodes of
falciparum malaria in E-2020 countries targeting elimination, we have characterised …

Measuring changes in Plasmodium falciparum census population size in response to sequential malaria control interventions

KE Tiedje, Q Zhan, S Ruybal-Pésantez… - medRxiv, 2024 - pmc.ncbi.nlm.nih.gov
Here we introduce a new endpoint ″census population size ″to evaluate the epidemiology
and control of Plasmodium falciparum infections, where the parasite, rather than the infected …

An accurate method for identifying recent recombinants from unaligned sequences

Q Feng, KE Tiedje, S Ruybal-Pesántez… - …, 2022 - academic.oup.com
Motivation Recombination is a fundamental process in molecular evolution, and the
identification of recombinant sequences is thus of major interest. However, current methods …