Test transgenerational inheritance in rotifers: maternal age causes reversible epigenetic silencing rather than permanent somatic DNA mutation damage.
Generational Pedigree Breeding LineageSelect maternal age at reproduction (Early: Day 2 vs Late: Day 8)
Cohort Survival Curves: Gen 4 Rescue vs DNA Mutation Model
Epigenetic Transmission (Empirical)
Irreversible Mutation Model
Baseline Young Lineage
Lansing Reversal Observed: In Gen 4, shifting maternal reproduction to Day 2 completely restores lifespan from 7.8d back to 13.9d, creating a 6.5-day discrepancy from the irreversible DNA degradation model.
Gen 4 Microscopic Cellular Biomarkers
Epigenetic Signal / Methylation
0.12 (Cleared: 88%)
Reversible maternal age histone/small RNA repressor signal
DNA Somatic Lesion Accumulation
0.62 (Predicted DNA Deficit)
Irreversible mutational burden predicted by damage theory
Telemetry & Hypothesis Comparison
Gen 4 Epigenetic Level
0.12
Gen 4 Mean Lifespan
13.9 d
Model Discrepancy
+6.5 d
Single-Gen Reversal
TRUE
Mechanistic Conclusion: Because offspring lifespan is restored within a single generation of early reproduction, aging phenotypes in rotifers represent soft, reprogrammable transgenerational epigenetic inheritance rather than hard irreversible genomic damage.