Abstract:
:Antimalarial drugs impose strong selective pressure on Plasmodium falciparum parasites and leave signatures of selection in the parasite genome; screening for genes under selection may suggest potential drug or immune targets. Genome-wide association studies (GWAS) of parasite traits have been hampered by the lack of high-throughput genotyping methods, inadequate knowledge of parasite population history and time-consuming adaptations of parasites to in vitro culture. Here we report the first Plasmodium GWAS, which included 189 culture-adapted P. falciparum parasites genotyped using a custom-built Affymetrix molecular inversion probe 3K malaria panel array with a coverage of approximately 1 SNP per 7 kb. Population structure, variation in recombination rate and loci under recent positive selection were detected. Parasite half-maximum inhibitory concentrations for seven antimalarial drugs were obtained and used in GWAS to identify genes associated with drug responses. This study provides valuable tools and insight into the P. falciparum genome.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Mu J,Myers RA,Jiang H,Liu S,Ricklefs S,Waisberg M,Chotivanich K,Wilairatana P,Krudsood S,White NJ,Udomsangpetch R,Cui L,Ho M,Ou F,Li H,Song J,Li G,Wang X,Seila S,Sokunthea S,Socheat D,Sturdevant DE,Porcella SFdoi
10.1038/ng.528subject
Has Abstractpub_date
2010-03-01 00:00:00pages
268-71issue
3eissn
1061-4036issn
1546-1718pii
ng.528journal_volume
42pub_type
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