fern-genomics
Fern-genomics is the study of fern genome sequences and genetic organization using molecular and computational methods. This research area is critical for plant science because ferns occupy an important evolutionary position that illuminates how plant genomes have evolved and diversified, particularly regarding polyploidy and complex life-cycle genetics. Understanding fern genomes provides insights into fundamental plant biology principles and evolutionary adaptations across plant lineages.
PubMed · 2026-02-19
Fern chloroplasts contain mobile genes that behave like genetic parasites, moving around and replicating independently from the rest of the plant's genome. This discovery challenges assumptions about plant genetic stability and reveals a new mechanism for how plants acquire genes from their environment.
Study of 30 Anemiaceae fern species revealed MORFFOs with exceptionally high substitution rates—much faster than other plastid genes—indicating intense evolutionary activity
MORFFOs are mobile genetic elements with dynamic locations that replicate independently outside plastids, functioning as selfish genetic elements
Evidence of horizontal gene transfer and intracellular gene transfer mechanisms enabling fern plastomes to acquire and maintain these mobile genes
