Overuse of Model Organisms Limits Epigenetic Inheritance Research

Summary

This article in the philosophy of science argues that an excessive reliance on standard model organisms has systematically marginalized certain forms of epigenetic inheritance, particularly transgenerational epigenetic inheritance. The author contends that the representationalist framework of these models further constrains discovery-oriented biological research. In this context, they propose a 'Pragmatist-Artifactualist' reconceptualization to regain the capacity to support conceptually disruptive hypotheses.

Why it matters

The dominant model organism paradigm may be structurally blind to inheritance mechanisms that do not fit conserved and gamete-cell-based assumptions. This can lead to the undiscovery of broad segments of biological reality. The critique of representationalism as an entrenched epistemic bias extends beyond epigenetics. The concept of 'models' carries the risk of excluding genuinely new hypotheses in any field, making this critique widely applicable. Additionally, this perspective contributes to a broader methodological pluralism debate regarding how life sciences distribute their attention between taxa and research questions.

Highlights

• The article’s core analytical tool is the distinction between 'framed inquiry' (deepening existing paradigmatic frameworks) and 'framing inquiry' (redefining disciplinary boundaries).
• Transgenerational epigenetic inheritance is identified as the key case systematically marginalized by model organism orthodoxy.
• The proposed Pragmatist-Artifactualist framework treats experimental model organisms not as simple proxies for target systems, but as epistemic artifacts. This approach aims to liberate discovery-oriented research.

Critical take

As a single-author conceptual study published in a history and philosophy journal, the article provides no empirical or case-study evidence that the proposed framework will actually change laboratory practice or generate new testable hypotheses. The argument remains at the level of philosophical interpretation. While the 'Pragmatist-Artifactualist' label is declared, the visible section does not concretely distinguish this approach from existing pragmatic accounts of scientific modeling in functional terms. This leaves readers uncertain about what specific changes would occur in the field.