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Extended protocol and real-time PCR dataset for shrimp species identification.

ABSTRACT: Mitochondrial gene analysis was performed using gene-specific conserved primers by conventional and real-time PCR method. Along with, beta-actin gene analysis using conserved primers was also performed in this article. Mitochondrial gene sequence as well as beta-actin sequence data were acquired by Sanger sequencing technique. We have reported a set of conserved primers for the identification and authentication of ten different shrimp species. Real-time melt curve analysis was the most promising methodology to discriminate the mislabeling or fraudulent commercial use of shrimp species. Dataset in this article provided novel insight into identification and authentication of shrimp species by real-time melt curve analysis.

SUBMITTER: Mondal D

PROVIDER: S-EPMC6953599 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Extended protocol and real-time PCR dataset for shrimp species identification.

Mondal Debabrata D Mandal Nripendranath N

Data in brief 20191231

Mitochondrial gene analysis was performed using gene-specific conserved primers by conventional and real-time PCR method. Along with, beta-actin gene analysis using conserved primers was also performed in this article. Mitochondrial gene sequence as well as beta-actin sequence data were acquired by Sanger sequencing technique. We have reported a set of conserved primers for the identification and authentication of ten different shrimp species. Real-time melt curve analysis was the most promising ...[more]

PMID: 31938722

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Project description:BackgroundLeishmaniasis is a serious neglected tropical disease that may lead to life-threatening outcome, which species are closely related to clinical diagnosis and patient management. The current Leishmania species determination method is not appropriate for clinical application. New Leishmania species identification tool is needed using clinical samples directly without isolation and cultivation of parasites.MethodsA probe-based allele-specific real-time PCR assay was established for Leishmania species identification between Leishmania donovani and L. infantum for visceral leishmaniasis (VL) and among L. major, L. tropica and L. donovani/L. infantum for cutaneous leishmaniasis (CL), targeting hypoxanthine-guanine phosphoribosyl transferase (HGPRT) and spermidine synthase (SPDSYN) gene with their species-specific single nucleotide polymorphisms (SNPs). The limit of detection of this assay was evaluated based on 8 repeated tests with intra-assay standard deviation < 0.5 and inter-assay coefficients of variability < 5%. The specificity of this assay was tested with DNA samples obtained from Plasmodium falciparum, Toxoplasma gondii, Brucella melitensis and Orientia tsutsugamushi. Total 42 clinical specimens were used to evaluate the ability of this assay for Leishmania species identification. The phylogenetic tree was constructed using HGPRT and SPDSYN gene fragments to validate the performance of this assay.ResultsThis new method was able to detect 3 and 12 parasites/reaction for VL and CL respectively, and exhibited no cross-reaction with P. falciparum, T. gondii, B. melitensis, O. tsutsugamushi and non-target species of Leishmania. Twenty-two samples from VL patients were identified as L. donovani (n = 3) and L. infantum (n = 19), and 20 specimens from CL patients were identified as L. major (n = 20), providing an agreement of 100% compared with sequencing results. For further validation, 29 sequences of HGPRT fragment from nine Leishmania species and 22 sequences from VL patients were used for phylogenetic analysis, which agreed with the results of this new method. Similar results were obtained with 43 sequences of SPDSYN fragment from 18 Leishmania species and 20 sequences from CL patients.ConclusionsOur assay provides a rapid and accurate tool for Leishmania species identification which is applicable for species-adapted therapeutic schedule and patient management.

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Extended protocol and real-time PCR dataset for shrimp species identification.

Publications

Extended protocol and real-time PCR dataset for shrimp species identification.

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