Topics — What a work is about. Nucleation holds whatever reading the owner files here, whether or not an Anthology of the SOTA topic could also hold it; instruction for ML practice belongs to the anthology (ADR-048). The words are seeded from the clusters the reading-time triage of 2026-09-25 found, and grow by decision.
Endosymbiosis and reductive evolution — how one organism comes to live inside another and depend on it, and how that ends — reductive genome evolution by drift, deletional bias or adaptive loss (including the Black Queen dependencies of free-living microbes), complementary loss across partners, nested symbioses and symbiont splitting and replacement, endosymbiotic gene transfer, protein import and host control of transmission, organellogenesis and organelle loss, and eukaryogenesis. The ecology of a partnership is ecology (ADR-055).
3 of 547 CLAIM documents. Back to the full index.
| # | Title | Summary | Status |
|---|---|---|---|
| CLAIM-506 v2 | The split of the last eukaryotic common ancestor’s central carbon metabolism, archaeal enzymes in the cytosol and alphaproteobacterial ones in the mitochondrion, does not single out syntrophy: a host that kept its own archaeal glycolysis and took up a bacterium with a TCA cycle leaves it whether the partnership began in syntrophy or by engulfment by an already complex host, and what the split counts against is a host whose carbon metabolism was replaced by the symbiont’s | Split from THEORY-1109 by the twenty-second status review (ADR-065; ADR-047’s kind 2, the record’s own extrapolation). THEORY-1109 reports what Santana-Molina and colleagues find and that they read it as support for syntrophy; this claim is the record’s judgement that the split cannot carry that reading. | Active |
| CLAIM-508 v2 | Gene ancestries alone cannot tell a symbiotic partner from a source of transferred genes: a partner whose genes were mostly lost, replaced or spread thin would leave the diffuse trace that Tobiasson and colleagues read as piecemeal transfer, and Bernabeu and colleagues concede that their donor signals say nothing of the kind of interaction | Split from THEORY-1104 by the twenty-second status review (ADR-065; ADR-047’s kind 2, the record’s own extrapolation). THEORY-1104 reports Tobiasson and colleagues’ reading of diffuse bacterial genes as transfer; THEORY-1105 reports Bernabeu and colleagues’ concession about their own donors. This claim is what the record draws from both. | Active |
| CLAIM-509 v2 | Stem lengths alone do not establish an order of acquisition in eukaryogenesis, neither Pittis and Gabaldón’s late mitochondrion nor Bernabeu and colleagues’ transfer waves: normalized stem length measures time only if rates before and after LECA are proportional, it shortens as closer relatives are sampled, the alphaproteobacterial separation from other bacteria rests on P = 0.044, and on Tobiasson and colleagues’ data it does not behave as a clock | Split from THEORY-1102 and THEORY-1101 by the twenty-second status review (ADR-065; ADR-047’s kind 2, the record’s own extrapolation). The two readings, now Active, report what the papers find; this claim is the record’s judgement of what stem lengths can establish. | Active |