Identification of a molecular marker for genotyping human lymphatic filarial nematode parasite Wuchereria bancrofti.
Identifieur interne : 007248 ( Main/Exploration ); précédent : 007247; suivant : 007249Identification of a molecular marker for genotyping human lymphatic filarial nematode parasite Wuchereria bancrofti.
Auteurs : K P Patra [Inde] ; Thangadurai Ramu ; S L Hoti ; G Siva Pragasam ; P K DasSource :
- Experimental parasitology [ 0014-4894 ] ; 2007.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- Animals, DNA Fingerprinting, DNA Primers (chemistry), Elephantiasis, Filarial (parasitology), Genetic Markers, Genetic Variation, Genotype, Humans, Phylogeny, Polymorphism, Genetic, Random Amplified Polymorphic DNA Technique, Reproducibility of Results, Wuchereria bancrofti (classification), Wuchereria bancrofti (genetics).
- MESH :
- chemical , chemistry : DNA Primers.
- classification : Wuchereria bancrofti.
- genetics : Wuchereria bancrofti.
- parasitology : Elephantiasis, Filarial.
- Animals, DNA Fingerprinting, Genetic Markers, Genetic Variation, Genotype, Humans, Phylogeny, Polymorphism, Genetic, Random Amplified Polymorphic DNA Technique, Reproducibility of Results.
Abstract
In India, Mass Drug Administration is on going towards elimination of lymphatic filariasis in many areas, which might lead to intense selection pressure on the parasite populations and their genetic restructuring. This calls for molecular finger printing of Wuchereria bancrofti parasite populations at national level and monitoring genetic changes in the future. For this purpose a reliable, less expensive, rapid, and reproducible molecular tool is necessary, which is not available for W. bancrofti at this time. We identified robust molecular markers based on the comparison of random amplified polymorphic DNA (RAPD) and amplified fragment length polymorphism (AFLP) profiles and the genetic data generated from parasite populations collected from areas in Northern (Varanasi, Uttar Pradesh state), Southern (Kozhikode, Kerala State) and Central regions (Jagdalpur, Chattisgarh state) of India, where lymphatic filariasis is endemic for many decades. RAPD profiles for these parasite populations were generated using three different primers and the dendrograms constructed using the profiles were all different. In order to identify appropriate RAPD primer(s), we compared the results of RAPD with the fingerprint profile and genetic data obtained by the more reliable AFLP technique, using the parasite populations from the same areas. RAPD marker (OP8) primer produced phylogenetic data almost similar to that of AFLP analysis. The marker was able to reveal variations between the parasite populations collected from Varanasi, Kozhikode, and Jagdalpur. Most importantly, RAPD primer OP8 produced reproducible results, when tested in three different trials. In view of the limited availability of W. bancrofti parasite DNA, along with a lower cost and ease of performance, RAPD appears to be more suitable compared to AFLP at the present juncture, since complete genome information of this parasite is still not available. Thus, RAPD primer OP8 can be a very useful molecular maker for DNA finger printing of W. bancrofti populations at present.
DOI: 10.1016/j.exppara.2006.11.011
PubMed: 17250828
Affiliations:
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Le document en format XML
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<term>Genetic Markers</term>
<term>Genetic Variation</term>
<term>Genotype</term>
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<term>Phylogeny</term>
<term>Polymorphism, Genetic</term>
<term>Random Amplified Polymorphic DNA Technique</term>
<term>Reproducibility of Results</term>
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<term>Marqueurs génétiques</term>
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<term>Polymorphisme génétique</term>
<term>Profilage d'ADN</term>
<term>Reproductibilité des résultats</term>
<term>Technique RAPD</term>
<term>Variation génétique</term>
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<front><div type="abstract" xml:lang="en">In India, Mass Drug Administration is on going towards elimination of lymphatic filariasis in many areas, which might lead to intense selection pressure on the parasite populations and their genetic restructuring. This calls for molecular finger printing of Wuchereria bancrofti parasite populations at national level and monitoring genetic changes in the future. For this purpose a reliable, less expensive, rapid, and reproducible molecular tool is necessary, which is not available for W. bancrofti at this time. We identified robust molecular markers based on the comparison of random amplified polymorphic DNA (RAPD) and amplified fragment length polymorphism (AFLP) profiles and the genetic data generated from parasite populations collected from areas in Northern (Varanasi, Uttar Pradesh state), Southern (Kozhikode, Kerala State) and Central regions (Jagdalpur, Chattisgarh state) of India, where lymphatic filariasis is endemic for many decades. RAPD profiles for these parasite populations were generated using three different primers and the dendrograms constructed using the profiles were all different. In order to identify appropriate RAPD primer(s), we compared the results of RAPD with the fingerprint profile and genetic data obtained by the more reliable AFLP technique, using the parasite populations from the same areas. RAPD marker (OP8) primer produced phylogenetic data almost similar to that of AFLP analysis. The marker was able to reveal variations between the parasite populations collected from Varanasi, Kozhikode, and Jagdalpur. Most importantly, RAPD primer OP8 produced reproducible results, when tested in three different trials. In view of the limited availability of W. bancrofti parasite DNA, along with a lower cost and ease of performance, RAPD appears to be more suitable compared to AFLP at the present juncture, since complete genome information of this parasite is still not available. Thus, RAPD primer OP8 can be a very useful molecular maker for DNA finger printing of W. bancrofti populations at present.</div>
</front>
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