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Table 7 Proportion of false-positive Hi-C contacts between haplotypes in the Nanopore assemblies. Only Hi-C reads with high mapping quality (MAPQ > 30) were used in this analysis. Over half of all trans Hi-C contacts in the Nanopore Guppy v4 assembly are false-positive signals between haplotypes. The Nanopore Guppy V5 assembly has a slightly lower false-positive signal, which is still substantially higher than in the HiFi assemblies (Table 2)

From: Physical separation of haplotypes in dikaryons allows benchmarking of phasing accuracy in Nanopore and HiFi assemblies with Hi-C data

Assembly

# of Hi-C cis-contacts

# of Hi-C trans-contacts

False-positive rate of Hi-C contacts (% of Hi-C trans-contacts that are between haplotypes)

Nanopore Guppy v4 assembly

634,712

257,489

58.8%

Nanopore Guppy v4 unpolished assembly

288,065

181,198

52.3%

Nanopore Guppy v5 assembly

592,278

174,592

47.0%

Nanopore Guppy v5 unpolished assembly

336,426

173,882

44.1%