Whole-Genome Sequencing Protocols for IBV and Other Coronaviruses Using High-Throughput Sequencing

Area of Science:

• Virology
• Molecular Biology
• Bioinformatics

Background:

• Coronaviruses pose significant public health challenges.
• Accurate and deep sequencing is crucial for understanding viral evolution and developing countermeasures.
• Existing protocols may lack the depth or broad applicability required for comprehensive coronavirus analysis.

Purpose of the Study:

• To develop and report a high-throughput sequencing protocol for Coronaviruses.
• To generate a dataset with significant depth of coverage for viral analysis.
• To establish a versatile workflow applicable to various coronaviruses.

Main Methods:

• Enrichment of viral particles from allantoic fluid via ultracentrifugation.
• Extraction of total RNA from the enriched viral samples.
• Preparation of DNA sequencing libraries from extracted RNA for high-throughput sequencing.

Main Results:

• The protocol successfully sequences infectious bronchitis virus propagated in embryonated eggs.
• The method yields a dataset with substantial depth of coverage.
• The workflow is demonstrated to be suitable for high-throughput sequencing platforms.

Conclusions:

• The developed protocol provides a robust method for deep sequencing of Coronaviruses.
• This workflow enhances the ability to study viral genomes and develop diagnostics or therapeutics.
• The protocol's adaptability makes it valuable for a wide range of coronavirus research.