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Dynamical Patterning Modules, Biogeneric Materials, and the Evolution of Multicellular Plants.

Mariana Benítez1, Valeria Hernández-Hernández2, Stuart A Newman3

  • 1Centro de Ciencias de la Complejidad - Instituto de Ecología, Universidad Nacional Autónoma de México, Mexico City, Mexico.

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PubMed
Summary

Dynamical patterning modules (DPMs) and biogeneric materials explain major evolutionary transitions in photosynthetic eukaryotes. These conserved gene networks and cellular processes drove the evolution of multicellularity and complex plant development.

Keywords:
algal evolutionconvergent evolutiondynamical patterning modulesplant evolutionplasmodesmata

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Area of Science:

  • Evolutionary developmental biology
  • Plant science
  • Eukaryotic evolution

Background:

  • Understanding major evolutionary transitions in photosynthetic eukaryotes requires comparative developmental analyses.
  • Dynamical patterning modules (DPMs) and biogeneric materials offer a framework for studying these processes.

Purpose of the Study:

  • To outline key events and transitions in plant evolution using the DPM and biogeneric material framework.
  • To identify DPMs and biogeneric properties crucial for these evolutionary changes.

Main Methods:

  • Comparative analysis of developmental processes across diverse eukaryotic photosynthetic lineages.
  • Application of DPM and biogeneric material concepts to evolutionary transitions.

Main Results:

  • Four primary DPMs were identified as critical for the evolution of multicellularity: cell-to-cell adhesion, cell wall specification, cell differentiation, and cell polarity.
  • DPMs evolved through co-option of genes from unicellular ancestors.
  • Symplastic transport via plasmodesmata was vital for complex multicellularity.

Conclusions:

  • DPMs were achieved through diverse mechanisms even within clades.
  • The evolution of multicellularity in plants involved the repurposing of ancestral molecular components.
  • Intercellular communication through plasmodesmata was a key innovation for plant complexity.