[Paper Review] Genome assembly in the telomere-to-telomere era
A review of advances in long-read sequencing and assembly methods enabling near chromosome-scale, telomere-to-telomere genome assemblies and guidance on deriving such assemblies.
De novo assembly is the process of reconstructing the genome sequence of an organism from sequencing reads. Genome sequences are essential to biology, and assembly has been a central problem in bioinformatics for four decades. Until recently, genomes were typically assembled into fragments of a few megabases at best but technological advances in long-read sequencing now enable near complete chromosome-level assembly, also known as telomere-to-telomere assembly, for many organisms. Here we review recent progress on assembly algorithms and protocols. We focus on how to derive near telomere-to-telomere assemblies and discuss potential future developments.
Motivation & Objective
- Survey recent progress in genome assembly algorithms and protocols.
- Explain how long-read sequencing enables near telomere-to-telomere assemblies.
- Discuss practical workflows and challenges toward achieving chromosome-scale assemblies.
- Highlight potential future developments in assembly methods and data types.
Proposed method
- Review and synthesize recent literature on assembly algorithms and protocols.
- Discuss the impact of long-read sequencing on contiguity and completeness.
- Outline recommended workflows for achieving near telomere-to-telomere assemblies.
- Identify current limitations and future directions in assembly methods.
Experimental results
Research questions
- RQ1What are the key algorithmic advances enabling telomere-to-telomere genome assembly?
- RQ2How do long-read sequencing technologies influence the quality and completeness of assemblies?
- RQ3What workflows best achieve near chromosome-level assemblies, and what challenges remain?
- RQ4What future developments are anticipated to further improve telomere-to-telomere assembly pipelines.
Key findings
- Long-read sequencing advances enable near chromosome-level assemblies for many organisms.
- Advances in assembly algorithms and protocols are central to achieving telomere-to-telomere assemblies.
- There is a focus on deriving near telomere-to-telomere assemblies and planning for future improvements.
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This review was created by AI and reviewed by human editors.