Background Most, if not all, green plant (Virdiplantae) species including angiosperms and
ferns are polyploids themselves or have ancient polyploid or whole genome duplication …

Whole-genome duplication (WGD) has occurred repeatedly during plant evolution and
diversification, providing genetic layers for evolving new functions and phenotypes …

Ferns are the second largest clade of vascular plants with over 10,000 species, yet the
generation of genomic resources for the group has lagged behind other major clades of …

Whole-genome duplication has been recognized as a major process in speciation of land
plants, especially in ferns. Whereas genome downsizing contributes greatly to the post …

Vascular plants are exceptional among eukaryotes due to their outstanding genome size
diversity which ranges∼ 2,400-fold, including the largest genome so far recorded in the …

Background Genome size is influenced by natural selection and genetic drift acting on
variations from polyploidy and repetitive DNA sequences. We hypothesized that centromere …

Ferns and lycophytes have remarkably large genomes. However, little is known about how
their genome size evolved in fern lineages. To explore the origins and evolution of …

Previous phylogenies showed conflicting relationships among the subfamilies and genera
within the fern family Ophioglossaceae. However, their classification remains unsettled …

Ferns, and particularly homosporous ferns, have long been assumed to have experienced
recurrent whole‐genome duplication (WGD) events because of their substantially large …

Premise Efficient protocols for extracting high‐molecular‐weight (HMW) DNA from ferns
facilitate the long‐read sequencing of their large and complex genomes. Here, we perform …