A plastid phylogeny of the Old World fern genus Leptochilus (Polypodiaceae): Implications for cryptic speciation and progressive colonization from lower to higher latitudes

Liang, Zhang; Lu, Ngan Thi; Zhou, Xin‐Mao; Chen, De-Kui; Knapp, R.; Zhou, Lin; Guo, Lei; Lương, Thiện Tâm; Sun, Hang; Gao, Xin‐Fen; Zhang, Libing

doi:10.1016/j.ympev.2019.01.013

Cited by 14 publications

(9 citation statements)

References 44 publications

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“…This “tropical origin followed by subtropical diversification” hypothesis may provide a plausible explanation for the recent rapid radiation of Lepsirous in southern China, and is in line with the rapid shift in elevation and new habitats that occur in the genus (Sundue et al., ). Another example with such a biogeographical pattern also was discussed in Leptochilus (Zhang et al., ) which was assigned as outgroup taxa of Lepisorus in the present study.…”

Section: Discussionsupporting

confidence: 78%

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Backbone phylogeny of Lepisorus (Polypodiaceae) and a novel infrageneric classification based on the total evidence from plastid and morphological data

et al. 2019

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The fern genus Lepisorus represents one of the most complicated and controversial lineages in Polypodiaceae, with about 80 species which have been classified into several separate genera, and is notorious for its taxonomic difficulty. Despite progress in recent phylogenetic studies of the family Polypodiaceae involving Lepisorus and its allies, the deep phylogenetic relationship within this group of ferns is still unresolved, and no formal infrageneric classification has been proposed. This contribution presents the most comprehensive phylogenetic analysis of the genus, with 72% species sampled, using a total-evidence approach based on eight plastid markers and ≤25 morphological characters for each species. The analyses resolve the backbone relationship and yield the most robust phylogenetic framework to date. Congruent with previous studies but with new findings, the results herein show that Lepisorus is monophyletic when Neolepisorus, Lemmaphyllum, Tricholepidium, Neocheiropteris and Lepidomicrosorium are included, as well as Lepisorus jakonensis and Paragramma. Furthermore, 17 well-resolved clades are found in the phylogenetic topology, which can be characterized by morphological synapomorphies from traits of rhizome scales, laminae, sori and paraphyses. Based on molecular and morphological evidence, a new infrageneric classification system of Lepisorus is proposed which subdivided Lepisorus into 17 sections.

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Section: Discussionsupporting

confidence: 78%

“…Thus, this species probably has complicated evolutionary histories and some unknown cryptic species may exist in this section, as similar patterns also are revealed in other groups of Polypodiaceae (e.g. Sundue et al., ; Zhang et al., ). Further studies using population sampling are needed on polyploidization and chromosome arrangement.…”

Section: Discussionsupporting

confidence: 76%

Backbone phylogeny of Lepisorus (Polypodiaceae) and a novel infrageneric classification based on the total evidence from plastid and morphological data

et al. 2019

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“…Leptochilus macrophyllus appears to have diverged first followed by L. pteropus (widely known as Microsorum pteropus) and the rest of the species. Our results are congruent with those recently found by Zhang et al (2019).…”

Section: Phylogenetic Relationships and The Delimitation Of Tribes Ofsupporting

confidence: 94%

Exploring phylogeny of the microsoroid ferns (Polypodiaceae) based on six plastid DNA markers

Chen

Hyvönen

Schneider

2020

Molecular Phylogenetics and Evolution

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ϭ Cover Page Exploring phylogeny of the microsoroid ferns (Polypodiaceae) based on six plastid DNA markers

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“…Likewise, there are a number of native species or groups in Japan which are awaiting careful comparison with published results mostly generated in China and other Asian countries [e.g. Pteridium (Zhou et al 2014), Hymenasplenium (Xu et al 2018), and Leptochilus (Zhang et al 2019)].…”

Section: Future Perspectivesmentioning

confidence: 99%

An update and reassessment of fern and lycophyte diversity data in the Japanese Archipelago

Ebihara

Nitta

2019

J Plant Res

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The fern and lycophyte flora of Japan comprising 721 native taxa (including subspecies and varieties) plus 371 interspecific hybrids was reassessed using a nearly comprehensively sampled distribution map at 10 km resolution vouchered by 216,687 specimens, up-to-date cytotaxonomic information covering 74% of the taxa, and an rbcL sequence dataset covering 97.9% of the taxa. Spatial distribution of species richness and phylogenetic diversity was visualized. Apomixis was observed in 11.0% of the native taxa whose reproductive modes are known. The number of sexually reproducing polyploid taxa (n = 199) is less than sexual diploids (n = 241), and 30 of them are evidently allopolyploid, in contrast with the low number of possible autopolyploids (n = 4). Apomictic taxa were found to have smaller latitudinal ranges than sexual taxa or taxa with multiple reproductive modes. A morphological character dataset in Lucid format is provided for taxonomic identification of the native taxa.

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A plastid phylogeny of the Old World fern genus Leptochilus (Polypodiaceae): Implications for cryptic speciation and progressive colonization from lower to higher latitudes

Cited by 14 publications

References 44 publications

Backbone phylogeny of Lepisorus (Polypodiaceae) and a novel infrageneric classification based on the total evidence from plastid and morphological data

Backbone phylogeny of Lepisorus (Polypodiaceae) and a novel infrageneric classification based on the total evidence from plastid and morphological data

Exploring phylogeny of the microsoroid ferns (Polypodiaceae) based on six plastid DNA markers

An update and reassessment of fern and lycophyte diversity data in the Japanese Archipelago

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