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Haplotype assignment of longitudinal viral deep-sequencing data using co-variation of variant frequencies

Pang, J.; Venturini, C.; Tamuri, A. U.; Roy, S.; Breuer, J.; Goldstein, R. A.

2020-08-27 genomics
10.1101/444877 bioRxiv
Show abstract

Longitudinal deep sequencing of viruses can provide detailed information about intra-host evolutionary dynamics including how viruses interact with and transmit between hosts. Many analyses require haplotype reconstruction, identifying which variants are co-located on the same genomic element. Most current methods to perform this reconstruction are based on a high density of variants and cannot perform this reconstruction for slowly evolving viruses. We present a new approach, HaROLD (HAplotype Reconstruction Of Longitudinal Deep sequencing data), which performs this reconstruction based on identifying co-varying variant frequencies using a probabilistic framework. We test this method with synthetic data sets of mixed cytomegalovirus and norovirus genomes, demonstrating high accuracy when longitudinal samples are available.

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