Fast and accurate long-read assembly with wtdbg2
1Agricultural Genomics Institute, Chinese Academy of Agriculture Sciences, Shenzhen, China. ruanjue@caas.cn.
Nature Methods
|December 11, 2019
Summary
We developed wtdbg2, a faster long-read assembler for whole genome assembly. This new tool significantly speeds up the genome sequencing process, making large-scale population studies feasible.
Area of Science:
- Genomics
- Bioinformatics
Background:
- Current long-read genome assemblers are computationally intensive, requiring thousands of CPU hours.
- Sequencing technology advancements are outpacing the speed and cost-efficiency of existing assembly tools.
Purpose of the Study:
- To develop a faster and efficient long-read assembler.
- To enable population-scale genome assembly with long-read sequencing data.
Main Methods:
- Development of wtdbg2, a novel long-read sequence assembler.
- Benchmarking wtdbg2 against existing assembly tools using standard datasets.
Main Results:
- wtdbg2 achieves 2-17x speed improvement over published long-read assemblers.
- The assembler provides comparable contiguity and accuracy to existing methods.
- Demonstrates feasibility of rapid genome assembly.
Conclusions:
- wtdbg2 offers a significant speed enhancement for long-read genome assembly.
- The tool facilitates large-scale genomic studies and population genomics.
- Accelerates the application of long-read sequencing in genomics research.
