Diversification and reticulation in the circumboreal fern genus Cryptogramma

Metzgar, Jordan S.; Alverson, Edward R.; Chen, Sinian; Ваганов, А. В.; Ickert‐Bond, Stefanie M.

doi:10.1016/j.ympev.2013.02.020

Cited by 21 publications

(36 citation statements)

References 55 publications

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“…(Pteridaceae) was reported to be a disjunct species between North America and northeastern Asia. Metzgar et al () supported the disjunct lineage of the C. acrostichoides – C. sitchensis (Rupr.) T. Moore complex between North America and eastern Asia.…”

Section: Ferns and Lycophytesmentioning

confidence: 96%

Intercontinental disjunctions between eastern Asia and western North America in vascular plants highlight the biogeographic importance of the Bering land bridge from late Cretaceous to Neogene

Wen

Nie

Ickert‐Bond

2016

J of Sytematics Evolution

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This review shows a close biogeographic connection between eastern Asia and western North America from the late Cretaceous to the late Neogene in major lineages of vascular plants (flowering plants, gymnosperms, ferns and lycophytes). Of the eastern Asian-North American disjuncts, conifers exhibit a high proportion of disjuncts between eastern Asia and western North America. Several lineages of ferns also show a recent disjunct pattern in the two areas. In flowering plants, the pattern is commonly shown in temperate elements between northeastern Asia and northwestern North America, as well as elements of the relict boreotropical and Neogene mesophytic and coniferous floras. The many cases of intercontinental biogeographic disjunctions between eastern Asia and western North America in plants supported by recent phylogenetic analyses highlight the importance of the Bering land bridge and/or the plant migrations across the Beringian region from the late Cretaceous to the late Neogene, especially during the Miocene. The Beringian region has permitted the filtering and migration of certain plant taxa since the Pliocene after the opening of the Bering Strait, as many conspecific taxa or closely related species occur on both sides of Beringia.

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Section: Ferns and Lycophytesmentioning

confidence: 96%

Intercontinental disjunctions between eastern Asia and western North America in vascular plants highlight the biogeographic importance of the Bering land bridge from late Cretaceous to Neogene

Wen

Nie

Ickert‐Bond

2016

J of Sytematics Evolution

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183

161

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“…Circumscription equivalent to “cryptogrammoids” in Schuettpelz et al (). Monophyletic (Schuettpelz et al, ; Metzgar et al, ). Three genera and an estimated 31 species.…”

Section: Classificationmentioning

confidence: 99%

A community‐derived classification for extant lycophytes and ferns

2016

J of Sytematics Evolution

1,058

273

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Phylogeny has long informed pteridophyte classification. As our ability to infer evolutionary trees has improved, classifications aimed at recognizing natural groups have become increasingly predictive and stable. Here, we provide a modern, comprehensive classification for lycophytes and ferns, down to the genus level, utilizing a community‐based approach. We use monophyly as the primary criterion for the recognition of taxa, but also aim to preserve existing taxa and circumscriptions that are both widely accepted and consistent with our understanding of pteridophyte phylogeny. In total, this classification treats an estimated 11 916 species in 337 genera, 51 families, 14 orders, and two classes. This classification is not intended as the final word on lycophyte and fern taxonomy, but rather a summary statement of current hypotheses, derived from the best available data and shaped by those most familiar with the plants in question. We hope that it will serve as a resource for those wanting references to the recent literature on pteridophyte phylogeny and classification, a framework for guiding future investigations, and a stimulus to further discourse.

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“…2013: Atta and Acromyrmex , leafcutter ants of tribe Attini; Harpke et al. 2012: Crocus , Iridaceae; Metzgar et al. 2013: Cryptogramma , Pteridaceae; Soza et al.…”

Section: Introductionmentioning

confidence: 99%

The Evolution of Haploid Chromosome Numbers in the Sunflower Family

2016

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Chromosome number changes during the evolution of angiosperms are likely to have played a major role in speciation. Their study is of utmost importance, especially now, as a probabilistic model is available to study chromosome evolution within a phylogenetic framework. In the present study, likelihood models of chromosome number evolution were fitted to the largest family of flowering plants, the Asteraceae. Specifically, a phylogenetic supertree of this family was used to reconstruct the ancestral chromosome number and infer genomic events. Our approach inferred that the ancestral chromosome number of the family is n = 9. Also, according to the model that best explained our data, the evolution of haploid chromosome numbers in Asteraceae was a very dynamic process, with genome duplications and descending dysploidy being the most frequent genomic events in the evolution of this family. This model inferred more than one hundred whole genome duplication events; however, it did not find evidence for a paleopolyploidization at the base of this family, which has previously been hypothesized on the basis of sequence data from a limited number of species. The obtained results and potential causes of these discrepancies are discussed.

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Diversification and reticulation in the circumboreal fern genus Cryptogramma

Cited by 21 publications

References 55 publications

Intercontinental disjunctions between eastern Asia and western North America in vascular plants highlight the biogeographic importance of the Bering land bridge from late Cretaceous to Neogene

Intercontinental disjunctions between eastern Asia and western North America in vascular plants highlight the biogeographic importance of the Bering land bridge from late Cretaceous to Neogene

A community‐derived classification for extant lycophytes and ferns

The Evolution of Haploid Chromosome Numbers in the Sunflower Family

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