scholarly journals Molecular Systematics of the Chinese Yinshania (Brassicaceae): Evidence from Plastid and Nuclear Its DNA Sequence Data

2000 ◽  
Vol 87 (2) ◽  
pp. 246 ◽  
Author(s):  
Marcus Koch ◽  
Ihsan A. Al-Shehbaz
Keyword(s):  
Dna Sequence ◽  
Molecular Systematics ◽  
Sequence Data ◽  
Dna Sequence Data ◽  
Nuclear Its

Molecular Systematics of Lecanora Subgenus Placodium

1998 ◽  
Vol 30 (4-5) ◽  
pp. 415-425 ◽  
Author(s):  
Ulf Arup ◽  
Martin Grube
Keyword(s):  
Dna Sequence ◽  
Molecular Systematics ◽  
Sequence Data ◽  
Sister Group ◽  
Molecular Data ◽  
Monotypic Genus ◽  
Secondary Chemistry ◽  
Dna Sequence Data ◽  
Group A ◽  
Nuclear Its

AbstractA first hypothesis for the phylogeny of Lecanora subgen. Placodium is presented by using molecular data. Previous evolutionary ideas and classification concepts for this group with non-molecular data are re-investigated using DNA sequence data from the nuclear ITS and 5.8S regions. Using Protoparmelia as an outgroup, the Lecanora subfusca group together with the L. rupicola group appear as a sister group to assemblages with lobate species. Subgen. Placodium as currently accepted, is not monophyletic. Molecular data suggest that the Lecanora dispersa group and the L. polytropa group are widened by lobate species and there is evidence from the ITS data that the monotypic genus Arctopeltis Poelt is closely related to the L. dispersa group. A congruence between molecular data and secondary chemistry supports the broader concept of the L. dispersa group suggested by the molecular data.

Molecular phylogenetics of the Onobrychis genus (Fabaceae: Papilionoideae) using ITS and trnL–trnF DNA sequence data

2014 ◽  
Vol 62 (3) ◽  
pp. 235 ◽  
Author(s):  
S. Safaei Chaei Kar ◽  
F. Ghanavati ◽  
M. R. Naghavi ◽  
H. Amirabadi-zade ◽  
R. Rabiee
Keyword(s):  
Dna Sequence ◽  
Molecular Phylogenetics ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Dna Sequence Data ◽  
Group I ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
Cultivated Species ◽  
Relationship Of

Onobrychis, comprising more than 130 species, is a genus of the family Fabaceae. At this time, the interspecies relationship of this biologically important genus is still a subject of great discussion and debate. To help resolve this disagreement, we used molecular phylogeny to analyse internal transcribed spacer (ITS) and trnL–trnF sequences of 76 species of Onobrychis. Bayesian interference, maximum parsimony and maximum likelihood analyses of nuclear ITS and plastid trnL–trnF DNA sequence data generated trees with strong posterior probability for two groups: Onobrychis subgen. Sisyrosema (including: Heliobrychis, Hymenobrychis, Afghanicae and Anthyllium sections) along with Laxiflorae section in Group I and Onobrychis subgen. Onobrychis (except Laxiflorae section) in the other (Group II). The Laxiflorae section roots back to the ancestral node for Sisyrosema subgen. O. viciifolia (cultivated species), which is closely associated with O. cyri var. cyri, suggesting that the latter may be a wild progenitor of O. viciifolia. The present study supported the paraphyly of subgenera Onobrychis and Sisyrosema. The study proposed the paraphyletic nature of the sections Onobrychis, Dendrobrychis, Heliobrychis and Hymenobrychis. Together with our molecular phylogenetic analyses we present a review of Onobrychis morphology and discuss and compare our results with those of earlier morphological and molecular phylogenetic analyses.

A Campanulaceous Fate: the Albanian Stenoendemic Asyneuma comosiforme in fact Belongs to Isophyllous Campanula

2009 ◽  
Vol 34 (3) ◽  
pp. 595-601 ◽  
Author(s):  
Božo Frajman ◽  
Gerald M. Schneeweiss
Keyword(s):  
Dna Sequence ◽  
Sequence Data ◽  
Balkan Peninsula ◽  
Small Population ◽  
Phylogenetic Position ◽  
Biodiversity Hotspots ◽  
Dna Sequence Data ◽  
Main Clade ◽  
Restricted Distribution ◽  
Nuclear Its

The Balkan Peninsula is one of the few biodiversity hotspots in Europe, characterized by numerous endemic taxa. Due to their often-restricted distribution and the scarcity of modern phylogenetic and phylogeographic studies from this region, the phylogenetic position and taxonomy of these species are often poorly understood. One example is Asyneuma comosiforme, a stenoendemic species known only from the Shija Gorge in northeastern Albania. Since its description in 1921, the position of this poorly known species within Asyneuma has been questioned. Here, we use nuclear ITS and plastid trnL–trnF DNA sequence data to address the question of the phylogenetic position of this enigmatic species. The inferred phylogenies clearly support A. comosiforme as sister to the main clade of isophyllous Campanula species, which is supported by morphological and ecological similarities. Thus, a new nomenclatural combination, Campanula comosiformis, is proposed. Given the restricted distribution, this species should be considered at least vulnerable, but the small population size might warrant its classification as endangered.

Assessment of species boundaries of the Moringa ovalifolia in Namibia using nuclear its DNA sequence data

2020 ◽  
Vol 131 ◽  
pp. 335-341
Author(s):  
M.K. Hausiku ◽  
E.G. Kwembeya ◽  
P.M. Chimwamurombe ◽  
A. Mbangu
Keyword(s):  
Dna Sequence ◽  
Sequence Data ◽  
Species Boundaries ◽  
Dna Sequence Data ◽  
Nuclear Its

scholarly journals Molecular systematics of Telipogon (Orchidaceae: Oncidiinae) and its allies: nuclear and plastid DNA sequence data

Lankesteriana ◽  
2015 ◽  
Vol 5 (3) ◽  
Author(s):  
Norris Williams ◽  
Mark Whitten ◽  
Robert Dressler
Keyword(s):  
Dna Sequence ◽  
Molecular Systematics ◽  
Sequence Data ◽  
Plastid Dna ◽  
Dna Sequence Data

Se evaluaron las relaciones filogenéticas de Telipogon, Ornithocephalus y géneros afines (Orchidaceae: Oncidiinae) mediante análisis de parsimonia de datos de espaciadores de ADN ribosomal nuclear (nrITS) y de tres regiones de ADN de plastidios (matK, trnL-F y la región espaciadora intergénica atpB-rbcL). Además de un análisis de 81 OTU con ITS, se usó una matriz de 30 taxa para realizar análisis combinados de ADN nuclear y de plastidios. Stellilabium aparece anidado dentro de Telipogon. Éste presenta dos clados sudamericanos y uno centroamericano. Un clado de Stellilabium es hermano del clado centroamericano de Telipogon; el segundo clado de Stellilabium es hermano de todas las especies centroamericanas de Telipogon y Stellilabium. Hofmeisterella es un miembro del grupo de Telipogon. El género Dipterostele como tal no se justifica, según este estudio. Se realizan cambios nomenclatoriales para transferir las especies de Stellilabium a Telipogon. 

Bulbophyllum yongtaiense (Orchidaceae, Epidendroideae, Dendrobiinae), a new species from Fujian, China: Evidence from morphological and molecular analyses

Phytotaxa ◽  
2018 ◽  
Vol 349 (3) ◽  
pp. 281
Author(s):  
JIANGFENG LIU ◽  
MINGHE LI ◽  
SIREN LAN ◽  
YICHI LIANG
Keyword(s):  
New Species ◽  
Dna Sequence ◽  
Sequence Data ◽  
Orchid Species ◽  
Molecular Analyses ◽  
Dna Sequence Data ◽  
Data Support ◽  
Nuclear Its ◽  
Obtuse Apex ◽  
A New Species

Bulbophyllum yongtaiense, a new orchid species from Fujian, China, is described and illustrated based on morphological and molecular analyses. Detailed morphological comparisons indicate that B. yongtaiense is similar to B. kuanwuense, but it can be distinguished from longer scape, fimbriate-ciliate on margins of dorsal sepals and petals, petals with obtuse apex and a lip with finely papillose near base. Molecular analyses based on nuclear ITS and plastid matK, atpI-atpH, and trnL-F DNA sequence data support B. yongtaiense is genetically similar to B. hirundinis and B. pecten-veneris, but it can be distinguished from them by having shorter lateral sepals, petals with obtuse apex and a lip with finely papillose near base.

Sign in / Sign up

Export Citation Format

Share Document