Major evolutionary events in the origin and diversification of the fern genus Polystichum (Dryopteridaceae).

@article{Little2003MajorEE,
  title={Major evolutionary events in the origin and diversification of the fern genus Polystichum (Dryopteridaceae).},
  author={Damon P. Little and David S Barrington},
  journal={American journal of botany},
  year={2003},
  volume={90 3},
  pages={
          508-14
        }
}
Recent advances in molecular systematics of the ferns make it possible to address long-standing questions about classification of the major fern genera, such as the worldwide genus Polystichum (Dryopteridaceae), comprising at least 200 species. In this study we examined rbcL sequences and morphological characters from 55 fern taxa: 34 were from Polystichum and 21 were from other genera in the Dryopteridaceae. We found that Phanerophlebia, possibly including Polystichopsis, is the sister group… 
View on PubMed
onlinelibrary.wiley.com
115 Citations
Highly Influential Citations
10
Background Citations
40
Methods Citations
14
Results Citations
6

Figures and Tables from this paper

115 Citations

Citation Type

Citation Type

Origin of Hawaiian Polystichum (Dryopteridaceae) in the context of a world phylogeny.
TLDR
The origin of the Hawaiian species of Polystichum is the result of multiple migrations to the islands, rather than single migrations yielding nearly all the local diversity as in the angiosperms, which provides a modern test of the premise that propagule vagility has a central role in determining pattern of evolution.
Phylogeny of Chinese Polystichum (Dryopteridaceae) based on chloroplast DNA sequence data (trnL-F and rps4-trnS)
TLDR
Three subclades resolved within Polystichum sensu stricto (s.s.) clade do not correspond with recent sectional classifications, and it is outlined the issues relevant to a new classification for the genus.
Molecular Phylogeny of the Polystichoid Ferns in Asia Based on Rbcl Sequences
TLDR
Morphologically, once-pinnate leaf dissection and reticulate venation appear to be ancestral in the polystichoid ferns.
Asian origin for Polystichum (Dryopteridaceae) based on rbcL sequences
TLDR
The phylogenetic and divergence time estimation results lead us to suggest that Polystichum s.l. originated in Asia in the late Late Cretacous and migrated into other places in the world in early Eocene.
Using a multilocus phylogeny to test morphology-based classifications of Polystichum (Dryopteridaceae), one of the largest fern genera
TLDR
DNA sequences of five plastid loci of 177 accessions representing ca.
Inclusion of the Eastern Asia endemic genus Sorolepidium in Polystichum (Dryopteridaceae): Evidence from the chloroplast rbcL gene and morphological characteristics
TLDR
Molecular data establish that Sorolepidium is deeply nested within the large genus Polystichum and has a close relationship with P. duthiei and P. lachenense in the model-based analyses.
Phylogeny and biogeography of exindusiate Andean Polystichum (Dryopteridaceae).
TLDR
The monophyletic exindusiate Andean Polystichum lineage diverged from a Mexican lineage in the middle Miocene and diversified in the central Andes before dispersing northward, corresponding with episodes of uplift in the tropical Andes.
Molecular phylogeny of the endemic fern genera Cyrtomidictyum and Cyrtogonellum (Dryopteridaceae) from East Asia
TLDR
The recognition of Cyrtomidictyum as circumscribed initially, rather than expansion of the genus to include either several Polystichum species or Cyrtogonellum, some PolystICHum and Cyrtomium species is supported.
Paraphyly of Cyrtomium (Dryopteridaceae): evidence from rbcL and trnL-F sequence data
TLDR
Cyrtomium was resolved as paraphyletic, and a clade including subseries Balansana of Cyrtomium, Cyrtogonellum, Polystichum subacutidens and Cyrtomidictyum (the BCPC clade) and a second one containing Cyrtomia sensu stricto were monophyletic.
A well-sampled phylogenetic analysis of the polystichoid ferns (Dryopteridaceae) suggests a complex biogeographical history involving both boreotropical migrations and recent transoceanic dispersals.
...
...

References

SHOWING 1-10 OF 26 REFERENCES
Chloroplast DNA evolution and systematics of Phanerophlebia (Dryopteridaceae) and related fern genera.
TLDR
Reticulate venation, previously considered an important taxonomic character for infrageneric classification in Phanerophlebia, most likely evolved independently twice within the genus.
rbcL gene sequences provide evidence for the evolutionary lineages of leptosporangiate ferns.
TLDR
To compare competing classifications, DNA sequences of a chloroplast gene were obtained and phylogenetic trees were inferred by the neighbor-joining and the parsimony methods that provided insights concerning major general evolutionary trends in the leptosporangiate ferns.
Phylogenetic relationships of dennstaedtioid ferns: evidence from rbcL sequences.
TLDR
Relationships among genera and families of dennstaedtioid ferns are clarified, and phylogenetic analysis of rbcL sequence data suggests relationships of some problematical genera, such as Monachosorum, Calochlaena, and Lonchitis.
Phylogenetic relationships of extant ferns based on evidence from morphology and rbcL sequences
TLDR
The first cladistic analysis of extant ferns based on morphological characters is presented, showing the value of using both molecular and morphological data sets in combination as well as separately, and bootstrap support for the leptosporangiate fern clades is much greater using the combined data set than when either the morphological or the molecular data set is analyzed separately.
Tentamen Pteridophytorum genera in taxonomicum ordinem redigendi
TLDR
A new scheme of classification of the higher groups of the extant Pteridophytes to the family level is proposed and the taxonomical enumeration of all genera, which amount to 443 and are subdivided into 64 families are proposed.
Molecular Confirmation of Hybrid Swarms in the Fern Genus Polystichum (Dryopteridaceae)
TLDR
The data confirm the only known case of temperate-zone pteridophytes where hybridization has gone beyond the F1 generation at the diploid level, and suggest that the populations are hybrid swarms.
Morphometric Evidence of Hybrid Swarms in Mixed Populations of Polystichum munitum and P. imbricans (Dryopteridaceae)
TLDR
Results from analyses of morphology, spore germination, and allozyme electrophoresis support the hypothesis that hybridization between P. munitum and P. imbricans can lead to the formation of homoploid hybrid swarms in temperate zone pteridophytes.
Climate and the disjunct distribution of Polystichum alfarii (Christ) Barr., comb. nov. in Mesoamerica
Polystichum alfarii (Christ) Barr, is here recognized as a species with a wide disjunction from the montane regions of northern Mesoamerica to the mountains of Costa Rica and Panama. Morphological…
Gene Trees and Species Trees: Molecular Systematics as One-Character Taxonomy
TLDR
A character phylogeny, in this case a gene tree, can be tested best by a parsimony analysis in which other characters are included, and each is an equivalent phylogenetic hypothesis, as is each non-molecular character, leading to the suggestion that direct combination is appropriate.
Ecological and Historical Factors in Fern Biogeography
TLDR
Fern biogeographers most often infer historical changes in habitat distribution predicated by climatic change from distribution based on data from recognized endemic centres and disjunct distributions.
...
...