Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

Greenbeards in plants?

Germain Montazeaud, Laurent Keller

New Phytologist · 2024

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Summary

This paper examines the theoretical feasibility of greenbeards—selfish genetic elements that coordinate altruistic or harmful behaviour towards carriers of identical gene copies—in plants. Although greenbeards are well-established across many animal taxa since Hamilton's 1974 proposal, they remain undocumented in plants. The authors discuss why this gap exists and propose how hypothetical plant greenbeards might operate, offering research avenues to advance understanding of this phenomenon in plant genetics and ecology.

UK applicability

This theoretical contribution has limited direct applicability to UK farming or soil health practice. However, understanding genetic selfishness mechanisms in plants may inform future crop breeding programmes and predictions of plant behaviour in mixed-species agricultural systems.

Key measures

No empirical measurements; theoretical analysis of greenbeard likelihood and mechanisms in plant biology

Outcomes reported

This paper presents a theoretical discussion of whether greenbeard selfish genetic elements, well-documented in diverse animal taxa, might exist in plants. It speculates on mechanisms by which such elements could affect plant–plant interactions and identifies future research directions.

Theme
General food systems / other
Subject
Other / interdisciplinary
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
System type
Laboratory / in vitro
DOI
10.1111/nph.19599
Catalogue ID
SNmov0hb7d-cjosqm

Topic tags

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