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Updated: Jul 2, 2025

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Greenbeards in plants?

Germain Montazeaud1,2, Laurent Keller3

  • 1Department of Ecology and Evolution, University of Lausanne, 1015, Lausanne, Switzerland.

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|February 26, 2024
PubMed
Summary
This summary is machine-generated.

Greenbeards, selfish genetic elements promoting altruism or harm based on gene identity, are well-documented in animals but not plants. This study explores their theoretical possibility and potential impact on plant interactions.

Keywords:
cooperationgreenbeardskin recognitionkin selectionplantsplant–plant interactionsselfish genessocial evolution

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Area of Science:

  • Evolutionary Biology
  • Genetics
  • Plant Science

Background:

  • Selfish genetic elements, termed 'greenbeards', were proposed by W. D. Hamilton to demonstrate gene-level kin selection.
  • Greenbeards have been identified across diverse taxa, facilitating gene-level cooperation or conflict.
  • Despite extensive research, greenbeards remain undocumented in the plant kingdom.

Purpose of the Study:

  • To theoretically assess the likelihood of greenbeard elements existing and functioning in plants.
  • To investigate the reasons behind the lack of greenbeard concept application in plant studies.
  • To speculate on the potential ecological consequences of hypothetical plant greenbeards on plant-plant interactions.

Main Methods:

  • Theoretical modeling of greenbeard dynamics in plant systems.
  • Review of existing literature on selfish genetic elements and plant interactions.
  • Speculative analysis of potential greenbeard mechanisms and their ecological effects in plants.

Main Results:

  • The theoretical framework suggests that greenbeards could potentially evolve in plants.
  • Several factors may contribute to the current lack of documented plant greenbeards.
  • Hypothetical plant greenbeards could significantly alter plant community structure and dynamics.

Conclusions:

  • Greenbeard elements are theoretically plausible in plants, despite current lack of empirical evidence.
  • Further research is needed to explore potential genetic mechanisms and ecological roles of greenbeards in plant systems.
  • Investigating plant greenbeards could open new avenues in understanding plant evolution and inter-plant communication.