Limits RegistryPUBLIC RECORD
Limits RegistryThe flowering plant Paris japonica has a reported haploid genome size of approximately 149 billion base pairs.
The question, scope, and sources behind this Registry record.
The flowering plant Paris japonica has a reported haploid genome size of approximately 149 billion base pairs.
Track the largest independently measured haploid nuclear genome among described organisms.
Genome-size extremes reveal that organismal complexity is not determined by DNA content alone. The record depends on whether the comparison uses haploid nuclear DNA, assembled sequence length, or an independently measured C-value.
The genome of the Japanese flowering plant Paris japonica — Largest known haploid genomeChange a parameter to stress-test whether a proposed result is still inside the published specification. This is an audit aid, not a proof checker.
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The frontier as it changed over time.
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Permanent ID limitsregistry.com/limits/LR-004205
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Limits Registry. LR-004205. Largest known haploid genome. 2026.