Exploring the hepatitis C virus genome using single molecule real-time sequencing

Area of Science:

• Genomics
• Molecular Biology
• Virology

Background:

• Conventional short-read sequencing struggles with distant nucleotide linkage.
• Viral genomes evolve in real-time, necessitating advanced sequencing methods.
• Hepatitis C virus (HCV) drug resistance is a growing clinical concern.

Purpose of the Study:

• To review the application of Single Molecular Real-Time (SMRT) sequencing for viral genome analysis.
• To highlight SMRT sequencing's advantages in determining viral haplotypes and heterogeneity.
• To discuss third-generation sequencing technologies for HCV genome analysis.

Main Methods:

• Utilizing Single Molecular Real-Time (SMRT) sequencing for long contiguous reads.
• Employing circular consensus sequencing for high accuracy.
• Comparing SMRT sequencing platforms (PacBio RSII/Sequel) with next-generation sequencers.

Main Results:

• SMRT sequencing accurately determines haplotypes of individual viral clones.
• Long reads enable linkage analysis of distant nucleotide changes (>20 kbp).
• SMRT sequencing has been applied to full-length HCV genome sequencing and NS5A gene analysis.

Conclusions:

• SMRT sequencing is a powerful tool for analyzing dynamic viral genomes, including HCV.
• Third-generation sequencing facilitates the study of viral evolution and drug resistance.
• Future perspectives for SMRT and nanopore sequencing in viral genomics are promising.