Results 1 to 10 of about 565 (99)

Historical reconstruction of climatic and elevation preferences and the evolution of cloud forest-adapted tree ferns in Mesoamerica [PDF]

open access: yesPeerJ, 2016
Background Cloud forests, characterized by a persistent, frequent or seasonal low-level cloud cover and fragmented distribution, are one of the most threatened habitats, especially in the Neotropics.
Victoria Sosa   +3 more
doaj   +5 more sources

Fern Spores—“Ready-to-Use” Standards for Plant Genome Size Estimation Using a Flow Cytometric Approach [PDF]

open access: yesPlants, 2022
Spores and pollen of plants were used as flow cytometric materials to efficiently infer genome sizes. Given this advantage, they hold great potential for various flow cytometric applications, particularly as plant genome size standards.
Sheng-Kai Tang   +5 more
doaj   +2 more sources

Phylogenetic significance of the characteristics of simple sequence repeats at the genus level based on the complete chloroplast genome sequences of Cyatheaceae [PDF]

open access: yesEcology and Evolution, 2021
The simple sequence repeats (SSRs) of plant chloroplasts show considerable genetic variation and have been widely used in species identification and phylogenetic relationship determination.
Ming Zhu   +5 more
doaj   +2 more sources

Complete chloroplast genome molecular structure, comparative and phylogenetic analyses of Sphaeropteris lepifera of Cyatheaceae family: a tree fern from China [PDF]

open access: yesScientific Reports, 2023
Sphaeropteris lepifera is a tree fern in the Cyatheaceae, a family that has played an important role in the evolution of plant systems. This study aimed to analyze the complete chloroplast genome of S.
Qingdi Hu   +8 more
doaj   +2 more sources

Palynological analysis of Sphaeropteris gardneri (Cyatheaceae, Pteridophyta) [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2010
The spore morphology and wall ultrastructure of Sphaeropteris gardneri (Hook.) R.M. Tryon from Brazil were analyzed with LM, SEM and TEM. The spores are trilete with an ornamentation formed of short low ridges with spines in their margins.
Gonzalo J. Marquez   +2 more
doaj   +6 more sources

Complete chloroplast genome of Sphaeropteris brunoniana (Cyatheaceae) [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2020
Illumina sequencing was employed to determine the complete chloroplast (cp) genome sequence of Sphaeropteris brunoniana (S. brunoniana), which is a relict fern. The cp genome of S. brunoniana is indeed a circular DNA molecule with 156,659 bp. It includes
Ming Zhu   +6 more
doaj   +2 more sources

Actinostachys minuta, a new species of grass fern from Mindanao, Philippines [PDF]

open access: yesPhytoKeys, 2020
Actinostachys minuta Amoroso & Coritico (Schizaeaceae), from Mindanao, Philippines, is described herein as a new species. This species is distinguished from all other species of Actinostachys (grass ferns) by its notably short and narrow fronds ...
Victor B. Amoroso   +2 more
doaj   +4 more sources

The scaly tree ferns (Cyatheaceae-Polypodiopsida) of Brazil [PDF]

open access: yesActa Botânica Brasílica, 2016
A synopsis of all scaly tree fern species (Cyatheaceae) occurring in Brazil is presented. We recognize 51 species in three genera [Sphaeropteris one species, Alsophila four species (one subspecies, two varieties), and Cyathea 45 species (one variety ...
Anna Weigand, Marcus Lehnert
doaj   +2 more sources

Population decline, potential habitat shifts, and growth reduction of the endangered tree fern Sphaeropteris lepifera in response to changing canopy density [PDF]

open access: yesScientific Reports
Sphaeropteris lepifera, a rare and endangered species belonging to the family Cyatheaceae, is often referred to as a “living fossil” and possesses significant ornamental value. This study investigated the survival status of four wild S.
Xiaohua Ma   +7 more
doaj   +2 more sources

Characterization and analysis of multi-organ full-length transcriptomes in Sphaeropteris brunoniana and Alsophila latebrosa highlight secondary metabolism and chloroplast RNA editing pattern of tree ferns [PDF]

open access: yesBMC Plant Biology
Background Sphaeropteris brunoniana and Alsophila latebrosa are both old relict and rare tree ferns, which have experienced the constant changes of climate and environment. However, little is known about their high-quality genetic information and related
Yang Peng   +4 more
doaj   +2 more sources

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