A new one-step multiplex PCR assay for simultaneous detection and identification of avian haemosporidian parasites

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A new one-step multiplex PCR assay for simultaneous detection and identification of avian haemosporidian parasites. / Ciloglu, Arif; Ellis, Vincenzo A.; Bernotienė, Rasa; Valkiūnas, Gediminas; Bensch, Staffan.

I: Parasitology Research, Vol. 118, Nr. 1, 01.2019, s. 191-201.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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T1 - A new one-step multiplex PCR assay for simultaneous detection and identification of avian haemosporidian parasites

AU - Ciloglu, Arif

AU - Ellis, Vincenzo A.

AU - Bernotienė, Rasa

AU - Valkiūnas, Gediminas

AU - Bensch, Staffan

PY - 2019/1

Y1 - 2019/1

N2 - Accurate detection and identification are essential components for epidemiological, ecological, and evolutionary surveys of avian haemosporidian parasites. Microscopy has been used for more than 100 years to detect and identify these parasites; however, this technique requires considerable training and high-level expertise. Several PCR methods with highly sensitive and specific detection capabilities have now been developed in addition to microscopic examination. However, recent studies have shown that these molecular protocols are insufficient at detecting mixed infections of different haemosporidian parasite species and genetic lineages. In this study, we developed a simple, sensitive, and specific multiplex PCR assay for simultaneous detection and discrimination of parasites of the genera Plasmodium, Haemoproteus, and Leucocytozoon in single and mixed infections. Relative quantification of parasite DNA using qPCR showed that the multiplex PCR can amplify parasite DNA ranging in concentration over several orders of magnitude. The detection specificity and sensitivity of this new multiplex PCR assay were also tested in two different laboratories using previously screened natural single and mixed infections. These findings show that the multiplex PCR designed here is highly effective at identifying both single and mixed infections from all three genera of avian haemosporidian parasites. We predict that this one-step multiplex PCR assay, being convenient and inexpensive, will become a widely used method for molecular screening of avian haemosporidian parasites.

AB - Accurate detection and identification are essential components for epidemiological, ecological, and evolutionary surveys of avian haemosporidian parasites. Microscopy has been used for more than 100 years to detect and identify these parasites; however, this technique requires considerable training and high-level expertise. Several PCR methods with highly sensitive and specific detection capabilities have now been developed in addition to microscopic examination. However, recent studies have shown that these molecular protocols are insufficient at detecting mixed infections of different haemosporidian parasite species and genetic lineages. In this study, we developed a simple, sensitive, and specific multiplex PCR assay for simultaneous detection and discrimination of parasites of the genera Plasmodium, Haemoproteus, and Leucocytozoon in single and mixed infections. Relative quantification of parasite DNA using qPCR showed that the multiplex PCR can amplify parasite DNA ranging in concentration over several orders of magnitude. The detection specificity and sensitivity of this new multiplex PCR assay were also tested in two different laboratories using previously screened natural single and mixed infections. These findings show that the multiplex PCR designed here is highly effective at identifying both single and mixed infections from all three genera of avian haemosporidian parasites. We predict that this one-step multiplex PCR assay, being convenient and inexpensive, will become a widely used method for molecular screening of avian haemosporidian parasites.

KW - Haemoproteus

KW - Leucocytozoon

KW - Mixed infection

KW - Multiplex PCR

KW - Parasite detection

KW - Plasmodium

U2 - 10.1007/s00436-018-6153-7

DO - 10.1007/s00436-018-6153-7

M3 - Article

VL - 118

SP - 191

EP - 201

JO - Parasitology Research

T2 - Parasitology Research

JF - Parasitology Research

SN - 1432-1955

IS - 1

ER -