Abstract
Molecular haplotyping is becoming increasingly important for studying the disease association of a specific allele because of its ability of providing more information than any single nucleotide polymorphism (SNP). Computational analysis and experimental techniques are usually performed for haplotypic determination. However, established methods are not suitable for analyzing haplotypes of massive natural DNA samples. Here we present a simple molecular approach to analyze haplotypes of conventional polymerase chain reaction (PCR) products quantitatively in a single sequencing run. In this approach, specific types and proportions of haplotypes in both individual and pooled samples could be determined by solving equations constructed from nonsynchronous pyrosequencing with di-base addition. Two SNPs (rs11176013 and rs11564148) in the gene for leucine-rich repeat kinase 2 (LRRK2) related to Parkinson’s disease were selected as experimental sites. A series of DNA samples, including these two heterozygous loci, were investigated. This approach could accurately identify multiple DNA samples indicating that the approach is likely to be applied for haplotyping of unrestricted conventional PCR products from natural samples, and be especially applicable for analyzing short sequences in clinical diagnosis.
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The work was funded by the National Natural Science Foundation of China (61571114).
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Pan, R., Xiao, P. Quantitative haplotyping of PCR products by nonsynchronous pyrosequencing with di-base addition. Anal Bioanal Chem 408, 8263–8271 (2016). https://doi.org/10.1007/s00216-016-9936-7
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DOI: https://doi.org/10.1007/s00216-016-9936-7