An expanded phylogeny of the Dennstaedtiaceae ferns: Oenotrichia falls within a non-monophyletic Dennstaedtia, and Saccoloma is polyphyletic

2015 ◽  
Vol 28 (4) ◽  
pp. 256 ◽  
Author(s):  
Leon R. Perrie ◽  
Lara D. Shepherd ◽  
Patrick J. Brownsey
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Type Species ◽  
New Caledonia ◽  
Phylogenetic Analyses ◽  
Chloroplast Dna Sequences ◽  
Relationship Of ◽  
The Relationship

Recent studies have transferred several species previously attributed to the fern genus Oenotrichia to other genera, and even out of the Dennstaedtiaceae to other families. However, the relationship of the type species, O. maxima from New Caledonia, has not previously been investigated using DNA sequences. With phylogenetic analyses of chloroplast DNA sequences, we verify the placement of Oenotrichia within the Dennstaedtiaceae. Moreover, O. maxima actually nests along with Leptolepia in a clade of Dennstaedtia. Dennstaedtia itself is non-monophyletic, with a second clade being more closely related to Microlepia. We outline what is required to resolve the generic taxonomy of this group. We also find that samples attributed to Saccoloma are polyphyletic, with some falling inside the Dennstaedtiaceae and others outside.

Phylogenetic study of the genus Pohlia (Mielichhoferiaceae, Bryophyta) based on chloroplast DNA sequences

2021 ◽  
Vol 44 (1) ◽  
Author(s):  
TAKAYUKI OHGUE ◽  
HIROYUKI AKIYAMA ◽  
HIROSHI SUZUKI-AZUMA ◽  
HIDETOSHI NAGAMASU
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Phylogenetic Study ◽  
The Family ◽  
Molecular Phylogenetic ◽  
Traditional Sense ◽  
Chloroplast Dna Sequences

The phylogenetic circumscription and taxonomic status of the genus Pohlia in the Mniaceae sensu lato was investigated based on chloroplast DNA sequences (rbcL, rps4, and trnL-F), with a focus on species occurring in Japan. The maximum likelihood and Bayesian inference analyses of sequences obtained from 34 species of Mniaceae s.l., including 13 Pohlia species, suggested that the genus Pohlia and the family Mielichhoferiaceae are not monophyletic in their present circumscription, but confirmed that the family Mniaceae is monophyletic in its traditional sense. These results are congruent with previous molecular phylogenetic studies. Three distinct clades were recognized in the Mielichhoferiaceae, almost corresponding to three sections of Pohlia (Pohlia, Cacodon and Apalodictyon). One of them branched off first within the Mniaceae s.l., and the other two were sister to the remainder of the Mniaceae s.l. The single included Schizymenium formed a monophyletic group with Pohlia sect. Pohlia and Epipterygium with Pohlia sect. Apalodictyon, confirming the results of previous studies. The results indicate that the taxonomic status of the genus Pohlia and family Mielichhoferiaceae are in need of revision. Phylogenetic analyses nested the accessions of P. camptotrachela within P. annotina and P. flexuosa clades, highlighting the need for taxonomic revision of Japanese propaguliferous Pohlia species.

Relationships of North American members of Rhodiola (Crassulaceae)

Botany ◽  
2014 ◽  
Vol 92 (12) ◽  
pp. 901-910 ◽  
Author(s):  
Joel P. Olfelt ◽  
William A. Freyman
Keyword(s):  
Dna Sequences ◽  
North American ◽  
Phylogenetic Analyses ◽  
Black Hills ◽  
Trnl Intron ◽  
The North ◽  
Alpine Habitats ◽  
Rare And Endangered ◽  
Chloroplast Dna Sequences ◽  
Rhodiola Integrifolia

Taxa of Rhodiola L. (Crassulaceae) generally grow in arctic or alpine habitats. Some Rhodiola species are used medicinally, one taxon, Rhodiola integrifolia Raf. subsp. leedyi (Rosend. & J.W.Moore) Moran, (Leedy’s roseroot), is rare and endangered, and the group’s biogeography in North America is intriguing because of distributional disjunctions and the possibility that Rhodiola rhodantha (A.Gray) H.Jacobsen (2n = 7II) and Rhodiola rosea L. (2n = 11II) hybridized to form Rhodiola integrifolia Raf. (2n = 18II). Recent studies of the North American Rhodiola suggest that the group’s current taxonomy is misleading. We analyzed nuclear and chloroplast DNA sequences (internal transcribed spacer (ITS), trnL intron, trnL–trnF spacer, trnS–trnG spacer) from the North American Rhodiola taxa. We combined our data with GenBank sequences from Asian Rhodiola species, performed parsimony, maximum likelihood (ML), and Bayesian phylogenetic analyses, and applied a Bayesian clock model to the ITS data. Our analyses reveal two major Rhodiola clades, suggest that hybridization between R. rhodantha and R. rosea lineages was possible, show two distinct clades within R. integrifolia, and demonstrate that a Black Hills, South Dakota, Rhodiola population should be reclassified as Leedy’s roseroot. We recommend that R. integrifolia be revised, and that the Black Hills Leedy’s roseroot population be managed as part of that rare and endangered taxon.

scholarly journals Molecular phylogeny of Sri Lankan Dipterocarpaceae in relation to other Asian Dipterocarpaceae based on chloroplast DNA sequences

Tropics ◽  
2003 ◽  
Vol 13 (2) ◽  
pp. 79-87 ◽  
Author(s):  
Dayananda Thawalama GAMAGE ◽  
Morley de SILVA ◽  
Akira YOSHIDA ◽  
Alfred E. SZMIDT ◽  
Tsuneyuki YAMAZAKI
Keyword(s):  
Molecular Phylogeny ◽  
Chloroplast Dna ◽  
Dna Sequences ◽  
Sri Lankan ◽  
Chloroplast Dna Sequences

Genetic and geographic origin of domesticated peanut as evidenced by 5S rDNA and chloroplast DNA sequences

2012 ◽  
Vol 298 (6) ◽  
pp. 1151-1165 ◽  
Author(s):  
Marina Grabiele ◽  
Laura Chalup ◽  
Germán Robledo ◽  
Guillermo Seijo
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Geographic Origin ◽  
5S Rdna ◽  
Chloroplast Dna Sequences

Diversification and Taxonomy of the Liverwort Jubula Dumort. (Jungermanniopsida: Porellales) Inferred from Nuclear and Chloroplast DNA Sequences

2010 ◽  
Vol 35 (1) ◽  
pp. 6-12 ◽  
Author(s):  
Ricarda Pätsch ◽  
Jörn Hentschel ◽  
Reynaldo Linares-Palomino ◽  
Rui-Liang Zhu ◽  
Jochen Heinrichs
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Chloroplast Dna Sequences

Monophyly and Phylogenetic Relationships in Lymania (Bromeliaceae: Bromelioideae) Based on Morphology and Chloroplast DNA Sequences

2007 ◽  
Vol 32 (2) ◽  
pp. 264-270 ◽  
Author(s):  
Leandro de Oliveira Furtado de Sousa ◽  
Tânia Wendt ◽  
Gregory K. Brown ◽  
Dorothy E. Tuthill ◽  
Timothy M. Evans
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Chloroplast Dna Sequences

scholarly journals Altitudinal distribution and advertisement call of Colostethus latinasus (Amphibia: Dendrobatidae), endemic species from eastern Panama and type species of Colostethus , with a molecular assessment of similar sympatric species

Zootaxa ◽  
2017 ◽  
Vol 4254 (1) ◽  
pp. 91 ◽  
Author(s):  
ROBERTO D. IBÁÑEZ ◽  
EDGARDO J. GRIFFITH ◽  
KAREN R. LIPS ◽  
ANDREW J. CRAWFORD
Keyword(s):  
Dna Sequences ◽  
Endemic Species ◽  
Type Species ◽  
Phylogenetic Analyses ◽  
Sympatric Species ◽  
Advertisement Call ◽  
Mountain Range ◽  
Altitudinal Distribution ◽  
Species Identity ◽  
Molecular Assessment

We conducted a molecular assessment of Colostethus-like frogs along an elevational gradient in the Serranía de Pirre, above Santa Cruz de Cana, eastern Panama, aiming to establish their species identity and to determine the altitudinal distribution of C. latinasus. Our findings confirm the view of C. latinasus as an endemic species restricted to the highlands of this mountain range, i.e., 1350–1475 m.a.s.l., considered to be type locality of this species. We described the advertisement call of C. latinasus that consists of a series of 4–18 single, short and relatively loud “peep”-like notes given in rapid succession, and its spectral and temporal features were compared with calls of congeneric species. For the first time, DNA sequences from C. latinasus were obtained, since previously reported sequences were based on misidentified specimens. This is particularly important because C. latinasus is the type species of Colostethus, a genus considered paraphyletic according to recent phylogenetic analyses based on molecular data. 

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