期刊
CELL HOST & MICROBE
卷 17, 期 3, 页码 404-413出版社
CELL PRESS
DOI: 10.1016/j.chom.2015.01.014
关键词
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资金
- EVIMalaR studentship through the European Community [242095]
- Wellcome Trust [098051]
- Medical Research Council [G0501670]
- MRC [G0501670] Funding Source: UKRI
- Medical Research Council [G0501670] Funding Source: researchfish
The genome-wide identification of gene functions in malaria parasites is hampered by a lack of reverse genetic screening methods. We present a large-scale resource of barcoded vectors with long homology arms for effective modification of the Plasmodium berghei genome. Cotransfecting dozens of vectors into the haploid blood stages creates complex pools of barcoded mutants, whose competitive fitness can be measured during infection of a single mouse using barcode sequencing (barseq). To validate the utility of this resource, we rescreen the P. berghei kinome, using published kinome screens for comparison. We find that several protein kinases function redundantly in asexual blood stages and confirm the targetability of kinases cdpk1, gsk3, tkl3, and PBANKA_082960 by genotyping cloned mutants. Thus, parallel phenotyping of barcoded mutants unlocks the power of reverse genetic screening for a malaria parasite and will enable the systematic identification of genes essential for in vivo parasite growth and transmission.
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