Genomic gigantism on the whisk-fern family (Psilotaceae): Tmesipteris obliqua challenges record holder Paris japonica
We report the discovery of the largest fern genome in Tmesipteris obliqua (1C = 150.61 pg), a species belonging to the whisk-fern family, Psilotaceae. Its genome size estimated by flow cytometry is comparable with the largest genome so far reported for any eukaryote, in the monocot Paris japonica (M...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/345900 |
| Acceso en línea: | http://hdl.handle.net/10261/345900 |
| Access Level: | acceso abierto |
| Palabra clave: | C-value diploidization obese genomes polyploidization pteridophytes |
| Sumario: | We report the discovery of the largest fern genome in Tmesipteris obliqua (1C = 150.61 pg), a species belonging to the whisk-fern family, Psilotaceae. Its genome size estimated by flow cytometry is comparable with the largest genome so far reported for any eukaryote, in the monocot Paris japonica (Melanthiaceae; 1C = 152.23 pg). The addition of this new record doubles the range of genome size values so far encountered in ferns from 97.2-fold (0.77–74.84 pg/1C) to 196-fold (0.77–150.61 pg/1C). This finding emphasizes the importance of filling taxonomic gaps in our knowledge to uncover the full extent of genome size diversity across the different lineages of land plants. |
|---|