Phylogenetic position ofSchnabelia, a genus endemic to China: Evidence from sequences of cpDNAmatK gene and nrDNA ITS regions

2003 ◽  
Vol 48 (15) ◽  
pp. 1576-1580 ◽  
Author(s):  
Suhua Shi ◽  
Yaqing Du ◽  
D. E. Boufford ◽  
Xun Gong ◽  
Yelin Huang ◽  
...  
Keyword(s):  
Phylogenetic Position ◽  
Nrdna Its ◽  
Its Regions ◽  
Nrdna Its Regions

scholarly journals Is There Such a Thing as Kalmia × Rhododendron?

2004 ◽  
Vol 129 (4) ◽  
pp. 517-522
Author(s):  
Mike L. Grant ◽  
Nicola H. Toomey ◽  
Alastair Culham
Keyword(s):  
Dna Sequencing ◽  
Dna Sequence ◽  
Dna Sequences ◽  
Intergeneric Hybrids ◽  
Hybrid Origin ◽  
Nrdna Its ◽  
Its Regions ◽  
Per Se ◽  
Nrdna Its Regions ◽  
Putative Hybrids

Two putative hybrids between Kalmia and Rhododendron, their suspected progenitor species and related taxa were submitted to DNA sequencing of cpDNA trnL-F and nrDNA ITS regions in order to test whether there was DNA sequence evidence both for hybridization per se and for the direction of the cross should one be evident. Comparison of eight DNA sequences from these putative hybrids with Rhododendron and Kalmia species showed clear evidence of origin within Rhododendron. No evidence of Kalmia DNA was detected. These putative intergeneric hybrids appear to be mutants of Rhododendron and not of hybrid origin.

Phylogeny and Phytogeography of Eupatorium (Eupatorieae, Asteraceae): Insights from Sequence Data of the nrDNA ITS Regions and cpDNA RFLP

2000 ◽  
Vol 113 (1) ◽  
pp. 79-89 ◽  
Author(s):  
Motomi Ito ◽  
Kuniaki Watanabe ◽  
Yoko Kita ◽  
Takayuki Kawahara ◽  
DJ Crawford ◽  
...  
Keyword(s):  
Sequence Data ◽  
Nrdna Its ◽  
Its Regions ◽  
Nrdna Its Regions

Species relationships of Lycoris endemic to Korea evaluated by RAPD and SNPs of nrDNA-ITS regions

2011 ◽  
Vol 52 (2) ◽  
pp. 145-151 ◽  
Author(s):  
Yong Kweon Yoo ◽  
Tao Yuan ◽  
Jong Suk Lee ◽  
Ae Kyung Lee ◽  
Mark S. Roh ◽  
...  
Keyword(s):  
Nrdna Its ◽  
Species Relationships ◽  
Its Regions ◽  
Nrdna Its Regions

New insights on Hygrophorus penarioides and H. penarius (Agaricales, Hygrophoraceae) from Hungary

Phytotaxa ◽  
2019 ◽  
Vol 392 (2) ◽  
pp. 127
Author(s):  
ERIK ZAJTA ◽  
TORDA VARGA ◽  
GÁBOR M KOVÁCS ◽  
BÁLINT DIMA
Keyword(s):  
Sequence Variation ◽  
Geographical Origin ◽  
Phylogenetic Analyses ◽  
Morphological Variability ◽  
Strong Support ◽  
Morphological Evidence ◽  
Its2 Region ◽  
Herbarium Specimens ◽  
Nrdna Its ◽  
Nrdna Its Regions

The ectomycorrhiza forming basidiomycete Hygrophorus penarius sensu lato was recognized as two species, H. penarioides and H. penarius in 2007 based on molecular and morphological evidence. However, this was based on few collections of restricted geographical origin and no studies have performed molecular analysis on additional specimens to date.To this end we sequenced the nrDNA ITS regions of 29 H. penarius s. l. collections from Hungary and Slovakia and analysed with collections from previous studies. Bayesian and Maximum Likelihood phylogenetic analyses confirmed the separation of H. penarioides and H. penarius in two clades with the majority of the specimens belonging to H. penarioides and only three to H. penarius. Despite the strong support of the lineages, there was no coherent difference in basidiome and spore traits. We also provide the first evidence of an intraspecific nrDNA sequence variation in the ITS2 region of H. penarioides together with morphological variability that has not been reported to date.On the basis of our result, we conclude that the Quercus associated H. penarioides is far more common in Hungary than the Fagus associated H. penarius and we suggest that identification of the two species in the absence of DNA sequence analysis should be handled with caution, especially when herbarium specimens are examined.

Phylogenetic position of the genus Ferula (Apiaceae) and its placement in tribe Scandiceae as inferred from nrDNA ITS sequence variation

2008 ◽  
Vol 274 (1-2) ◽  
pp. 47-66 ◽  
Author(s):  
Renata Kurzyna-Młynik ◽  
Alexei A. Oskolski ◽  
Stephen R. Downie ◽  
Rafał Kopacz ◽  
Aneta Wojewódzka ◽  
...  
Keyword(s):  
Sequence Variation ◽  
Phylogenetic Position ◽  
Its Sequence ◽  
Nrdna Its

scholarly journals The correct phylogenetic position of Lotus conimbricensis Brot. (Leguminosae, Loteae) based on nuclear ribosomal ITS sequences

2012 ◽  
Vol 71 (1) ◽  
pp. 87-94
Author(s):  
Miguel Faria ◽  
D. Harris ◽  
Tatiana Visnevschi-Necrasov ◽  
Manuel de Sousa ◽  
Eugénia Nunes
Keyword(s):  
Distinct Species ◽  
Its Sequences ◽  
Phylogenetic Position ◽  
Phylogenetic Study ◽  
Published Data ◽  
Its Sequence ◽  
Nrdna Its

The correct phylogenetic position of Lotus conimbricensis Brot. (Leguminosae, Loteae) based on nuclear ribosomal ITS sequences The nrDNA ITS sequence determined in Lotus conimbricensis in a previous phylogenetic study was unusual, in that it was almost identical to those retrieved from the morphologically distinct species L. subbiflorus. In the present study we sequenced new specimens of both species to reassess the phylogenetic position of L. conimbricensis. We conclude that the ITS sequence of L. conimbricensis used in the earlier analyses was most likely erroneous, and in fact L. conimbricensis is not closely related to L. subbiflorus. Critical reexamination of previously published data indicates that several other similar errors may exist for other Lotus species, and these should be checked before taxonomic conclusions are made.

Validating the systematic placement of Eriosynaphe in the genus Ferula (Apiaceae: Scandiceae: Ferulinae) linked with the description of Ferula mikraskythiana sp. nov. from Romania

Phytotaxa ◽  
2017 ◽  
Vol 298 (3) ◽  
pp. 239 ◽  
Author(s):  
ATTILA MÁTIS ◽  
ANNA SZABÓ ◽  
DMITRY LYSKOV ◽  
GÁBOR SRAMKÓ ◽  
THOMAS KUHN ◽  
...  
Keyword(s):  
New Species ◽  
Its Region ◽  
Molecular Study ◽  
Wide Distribution ◽  
Phylogenetic Position ◽  
Nrdna Its ◽  
Narrow Endemic ◽  
Taxonomic History ◽  
Wide Distribution Range ◽  
A New Species

The genus Eriosynaphe had a peculiar taxonomic history by having been considered also as member of the genus Johrenia in addition to originally having been established in Ferula. It has traditionally been regarded as monotypic and no previous molecular study examined its phylogenetic position. Based on sequences of the nrDNA ITS region, here we show that Eriosynaphe is ‘deeply’ nested in one of the well supported and repeatedly recognised clades of Ferula, thus arguing for its return to the genus Ferula. Additionally, a new species, Ferula mikraskythiana endemic to the Dobrogea region of southeastern Romania is described in the present paper. This species, with its overall habit and mericarp structure, closely resembles Eriosynaphe longifolia though it differs from the latter by its much larger stature, the morphology of the leaf terminal lobes and a distinct phenology. Moreover, F. mikraskythiana is a narrow endemic to a region beyond (westward to) the wide distribution range of E. longifolia.

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