Details

Autor(en) / Beteiligte

• Vieira Lima, Lucas
• Salino, Alexandre
• Kessler, Michael
• Rouhan, Germinal
• Testo, Weston L.
• Suzart Argolo, Caio
• Consortium, GoFlag
• Elias Almeida, Thaís

Titel

Phylogenomic evolutionary insights in the fern family Gleicheniaceae

Ist Teil von

• Molecular phylogenetics and evolution, 2023-07, Vol.184, p.107782-107782, Article 107782

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2023

Quelle

MEDLINE

Beschreibungen/Notizen

• [Display omitted] •We here present the first genomic-scale phylogenetic inferences concerning Gleicheniaceae, confirming the monophyly of Dicranopteris, Diplopterygium, Gleichenella, Gleichenia, Rouxopteris, and Stromatopteris, while recovering Sticherus as paraphyletic.•We clarify the relationships of Rouxopteris as belonging to the Sticheroid clade, and corroborate the overall phylogenetic relationships recovered in previous works.•Although Gleicheniaceae is an ancient lineage, with most of its extant genera diverging during the Mesozoic, several genera show more recent diversification, and our results suggest that reticulation and polyploidy have played significant roles during that process. Some genera, however, such as Rouxopteris and Stromatopteris, appear to represent evolutionary relicts. The pantropical fern family Gleicheniaceae comprises approximately 157 species. Seven genera are currently recognized in the family, although their monophyly is still uncertain due to low sampling in phylogenetic studies. We examined the monophyly of the genera through extended sampling, using the first phylogenomic inference of the family including data from both nuclear and plastid genomes. Seventy-six samples were sequenced (70 Gleicheniaceae species and six outgroups) using high throughput sequencing, including all seven currently recognized genera. Plastid and nuclear data were recovered and assembled; the nuclear data was phased to reduce paralogy as well as hybrid noise in the final recovered topology. Maximum likelihood trees were built for each locus, and a concatenated dataset was built for both datasets. A species tree based on a multispecies coalescent model was generated, and divergence time analyses performed. We here present the first genomic phylogenetic inferences concerning Gleicheniaceae, confirming the monophyly of most genera except Sticherus, which we recovered as paraphyletic. Although most of the extant genera of Gleicheniaceae originated during the Mesozoic, several genera show Neogene and even Quaternary diversifications, and our results suggest that reticulation and polyploidy may have played significant roles during this diversification. However, some genera, such as Rouxopteris and Stromatopteris, appear to represent evolutionary relicts.