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Genomic sequencing of land plants is heavily biased towards flowering plants. To understand plant evolution comprehensively, researchers must sequence diverse plant lineages and develop more non-seed plant models.

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Area of Science:

  • Evolutionary biology
  • Genomics
  • Plant science

Background:

  • The current land plant genome sequencing efforts are heavily skewed towards flowering plants (angiosperms).
  • Out of 100 published land plant genomes, only four are not from flowering plants.
  • Most genetically tractable model species used in research are also flowering plants.

Purpose of the Study:

  • To highlight the need for broader taxonomic sampling in plant genome sequencing.
  • To advocate for the inclusion of underrepresented plant lineages in genomic studies.
  • To emphasize the importance of developing new model species beyond flowering plants for a comprehensive understanding of plant evolution.

Main Methods:

  • Analysis of current publicly available land plant genome sequencing data.
  • Review of model species commonly used in plant research.
  • Argumentative synthesis based on existing data and evolutionary principles.

Main Results:

  • A severe taxonomic bias exists in sequenced land plant genomes, with over 96% belonging to flowering plants.
  • This bias limits our understanding of land plant evolutionary history and diversification.
  • The lack of diverse model species hinders research into ancestral versus derived developmental patterns.

Conclusions:

  • Sequencing genomes from neglected plant lineages is crucial for a holistic view of plant evolution.
  • Developing more non-seed plant model species is essential for advancing plant science.
  • A more taxonomically diverse genomic approach will illuminate the evolutionary trajectory and diversification of all land plants.