1. Compared to chromosome-level genomes, what improvements does T2T assembly offer?
T2T assembly fully resolves complex regions—such as centromeres, telomeres, and tandem repeats—that have long been missing. Leveraging HiFi long reads, it achieves gap-free scaffolding, effectively overcoming the challenges of repeat collapse and pervasive gaps found in traditional assemblies. This elevates genome sequences to the status of truly complete, finished maps.
2. What breakthroughs has T2T assembly brought to complex plant and animal genome research?
By integrating third-generation sequencing with Hi-C data, T2T assembly enables the precise identification of large structural variations, transposon dynamics, and homologous gene clusters. This ensures that inferences regarding species evolution and the localization/annotation of key functional genes align more closely with authentic genomic characteristics, driving basic research toward greater refinement and precision.
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