Mutation by Natural Dominance (TMD): analysis‑only toolkit v2.3 — real‑system readiness, uncertainty, and multi‑route coherence (with WS pilot case study)
Description
Short description
Mutation by Natural Dominance (TMD) is a testable framework for predicting which adaptive genetic route appears first when multiple solutions exist. It models “first winners” as a hazard race: the chance a route wins first is proportional to its successful‑arrival hazard λ. In genetics, λᵢ ∝ μᵢ·Aᵢ·Fᵢ (mutation supply × accessibility/context × fixation/persistence). In origins chemistry, an analogous CDI uses λₖ ∝ kₖ·aₖ·fₖ. This v2.3 release extends the v2.2 analysis‑only toolkit with real‑system readiness templates + a one‑run pipeline, robust uncertainty for overdispersed (non‑i.i.d.) replicates, a multi‑route graph‑coherence test (K≥3), and a pilot literature‑based case study on *Pseudomonas fluorescens* “Wrinkly Spreader” routes.
Long description
Mutation by Natural Dominance (TMD) — v2.3
**Status:** testable framework (pre‑theory). When preregistered gates G1–G3 (and ideally G4) pass across real systems and independent labs, it becomes reasonable to use: “The Theory of Mutation by Natural Dominance (TMD)”. Until then, this remains a framework / hypothesis family rather than a finished Theory.
## Core idea
Evolution often follows the “easiest” route. TMD quantifies “ease” via a hazard‑level model of first successful arrivals:
- **Genetics:** λᵢ ∝ μᵢ Aᵢ Fᵢ
- **Origins chemistry:** λₖ ∝ kₖ aₖ fₖ
where λ is a successful‑arrival hazard (a first‑arrival rate), μ is mutation/variation supply, A is genome accessibility / context, and F is a fixation/persistence factor from population genetics. For chemistry, k is an effective reaction/network rate, a is accessibility (concentrations, surfaces, cycling, compartments), and f is persistence/continuation.
First fixation is a Poisson race:
P_first,i = λᵢ / Σⱼ λⱼ,
giving a softmax/logistic law over competing routes.
## What’s new in v2.3
This release is about making TMD **test‑ready on real systems**, with robust uncertainty and multi‑route coherence checks.
### 1) Real‑system readiness (templates + one‑run pipeline)
A practical pack with templates for route definitions and winner counts, plus a script that produces:
- winner fractions \(\hat P\)
- path entropy \(H\), \(N_\text{eff}\), predictability \(\Pi\)
- pairwise dominance \(\delta_{ij}\) (log2) and uncertainty
- predicted \(P\) from μ·A·F when provided, and comparison reports
### 2) Overdispersion / non‑i.i.d. replicates
Real replicate experiments can show extra variance beyond binomial/multinomial sampling. v2.3 adds robust inference options (beta‑binomial / Dirichlet‑multinomial style logic and an effective replicate number \(n_\text{eff}\)) so δ and entropy estimates are not over‑confident.
### 3) Information ridge + prereg blocks for G3 design
Given a target dominance δ, v2.3 provides notes/tables for choosing replicate number n based on:
- required power, and/or
- desired CI width on \(\delta\) and on predictability metrics (entropy / \(N_\text{eff}\)).
### 4) Multi‑route graph coherence (K≥3)
For K≥3 routes, pairwise dominance \(\delta_{ij}\) should approximately behave like a single potential field (\(\delta_{ij} \approx \phi_i-\phi_j\)) in “one‑axis dominance” systems. v2.3 includes a cycle‑closure / graph‑curl test that can falsify that assumption or detect hidden structure.
### 5) Pilot literature‑based case study (WS routes)
A worked example on *Pseudomonas fluorescens* “Wrinkly Spreader” (WS) routes (Wsp/Aws/Mws). Using:
- derived pathway counts (n=26) from a published genotype table, and
- published pathway mutation rates to WS,
the case study demonstrates how TMD can infer relative fixation/persistence factors when μ‑supply and observed route outcomes differ.
## What this release is NOT
This record is **analysis‑only**:
- no lab protocols,
- no new biological data,
- no claim of experimental validation.
It provides a transparent mathematical framework, templates, and synthetic/literature demonstrations designed to be tested and potentially falsified by independent labs.
Other (English)
In More Basic Terms (general public)
When life adapts, there is usually more than one possible genetic “solution.” For example, a bacterium might gain a helpful trait through several different DNA changes.
**TMD (Mutation by Natural Dominance)** is a simple, testable idea about which solution appears first.
Think of it like a race between routes:
- Some DNA changes happen **more often** than others.
- Some parts of the genome are more **exposed / accessible**, making changes there more likely.
- Some changes, once they appear, are more likely to **spread and take over**.
TMD combines those ingredients into a single quantity for each route. Routes with higher scores should win the “first‑to‑appear” race more often when you repeat the same evolution experiment many times.
This Zenodo record is **analysis‑only**. It contains math, code, and templates. It does **not** contain new biological data and does **not** contain lab protocols.
What’s new in **v2.3** is that the toolkit is now much closer to “real‑world ready”:
- it includes templates and a one‑run pipeline for analyzing real winner‑count data,
- it adds robust uncertainty methods for messy real experiments (when replicates are not perfectly identical),
- and it adds a multi‑route consistency test for systems with 3+ competing routes.
Other (English)
Press & Public Summary (journalists / non‑specialists)
**One‑sentence summary:**
Mutation by Natural Dominance (TMD) is an open, testable framework that predicts which evolutionary path is most likely to appear first when several genetic solutions are available—based on mutation supply, genome context, and the probability a new variant spreads.
**What this release contains:**
- a transparent mathematical model for “first‑winner” evolutionary routes (a hazard / Poisson‑race model),
- reproducible analysis templates and code for turning winner counts into quantitative dominance estimates,
- robust statistical tools for uncertainty when real experiments are over‑variable,
- and a worked literature‑based pilot case study showing how the framework can infer missing factors when mutation supply alone does not explain observed winners.
**What this release does *not* contain:**
- no new biological experiments,
- no lab protocols,
- no claim that the framework is already validated.
**Why it matters (if future data support it):**
If confirmed across real systems, this approach could improve how scientists forecast early evolutionary steps (including early drug‑resistance routes), quantify how predictable evolution really is, and compare competing origins‑of‑life chemistries under realistic conditions.
**Status statement:**
TMD is presented as a **testable framework** (not yet a finished “Theory”). It becomes reasonable to call it a full theory only after multiple preregistered experiments across independent labs support its quantitative predictions.
Files
TMD_README_v2_3.md
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Additional details
Related works
- Is supplement to
- Software: 10.5281/zenodo.17335715 (DOI)
Funding
References
- Maldonado, R. (2025). Mutation by Natural Dominance (TMD): analysis‑only toolkit (v1.5). Zenodo.