Skip to main content
eScholarship
Open Access Publications from the University of California

Between two fern genomes.

  • Author(s): Sessa, Emily
  • Banks, Jo
  • Barker, Michael
  • Der, Joshua
  • Duffy, Aaron
  • Graham, Sean
  • Hasebe, Mitsuyasu
  • Langdale, Jane
  • Li, Fay-Wei
  • Marchant, D
  • Pryer, Kathleen
  • Rothfels, Carl
  • Roux, Stanley
  • Salmi, Mari
  • Sigel, Erin
  • Soltis, Douglas
  • Soltis, Pamela
  • Stevenson, Dennis
  • Wolf, Paul
  • et al.
Abstract

Ferns are the only major lineage of vascular plants not represented by a sequenced nuclear genome. This lack of genome sequence information significantly impedes our ability to understand and reconstruct genome evolution not only in ferns, but across all land plants. Azolla and Ceratopteris are ideal and complementary candidates to be the first ferns to have their nuclear genomes sequenced. They differ dramatically in genome size, life history, and habit, and thus represent the immense diversity of extant ferns. Together, this pair of genomes will facilitate myriad large-scale comparative analyses across ferns and all land plants. Here we review the unique biological characteristics of ferns and describe a number of outstanding questions in plant biology that will benefit from the addition of ferns to the set of taxa with sequenced nuclear genomes. We explain why the fern clade is pivotal for understanding genome evolution across land plants, and we provide a rationale for how knowledge of fern genomes will enable progress in research beyond the ferns themselves.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Main Content
Current View