Results 61 to 70 of about 5,418 (180)

Asplenium guodanum (Aspleniaceae), a distinct new fern species from northern Guangdong, China, based on morphological data and molecular phylogeny [PDF]

open access: yesPhytoKeys
A new spleenwort species, Asplenium guodanum, was found and described from Danxia landform region in Guangdong, China. The new species has close resemblance to A. subcrenatum Ching ex S.H.Wu in morphology, but can be distinguished by having plants small,
Ke-Wang Xu   +5 more
doaj   +3 more sources

Characterization of Aster lautureanus (Asteroideae, Asteraceae) Chloroplast Genome and Phylogenetic Insights

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
In this study, we first sequenced and characterized the complete chloroplast genome of Aster lautureanus and conducted comprehensive analyses of genome structure, codon usage, repeat sequences, phylogeny, and divergence time. ABSTRACT The genus Aster represents an important group of flowering plants with complex evolutionary relationships, yet genomic ...
Qiaoyu Zhang   +9 more
wiley   +1 more source

Systematics of Simplicia Kirk (Poaceae, Agrostidinae) – an endemic, threatened New Zealand grass genus

open access: yesPhytoKeys, 2016
A new species of the New Zealand endemic grass Simplicia, S. felix is described. The new species is segregated from and compared with S. buchananii and S. laxa. Simplicia felix occurs mostly in lightly shaded areas of seasonally dry alluvial forest.
Peter de Lange   +3 more
doaj   +3 more sources

Flowcytometric and Allozymic Studies on the Korean Dandelion (Taraxacum, Asteraceae), With Special Reference to the Hybrid Origin of Taraxacum coreanum Nakai

open access: yesPlant Species Biology, Volume 41, Issue 4, July 2026.
We found that the Korean tetraploid Taraxacum coreanum (Co) shows fixed heterozygosity at two dimeric enzyme loci, sod‐1 (aaab) and mdh‐1 (bddd). Allele‐specific comparisons indicate that sod‐1 ‘a’ and mdh‐1 ‘d’ are characteristic of the triploid T. mongolicum (Mo) whereas the ‘b’ alleles at both loci match Korean diploids (e.g., T. hallaisanense, Ha).
Tatsuyoshi Morita   +6 more
wiley   +1 more source

THE PHYLOGENY OF TRIBE ZINGIBEREAE (ZINGIBERACEAE) BASED ON ITS (nrDNA) AND trnL–F (cpDNA) SEQUENCES

open access: yesEdinburgh Journal of Botany, 2004
A phylogenetic analysis of the tribe Zingibereae (Zingiberaceae) was performed using nuclear ribosomal DNA (ITS1, 5.8S and ITS2) and chloroplast DNA (trnL (UAA) 5′ exon to trnF (GAA)). The tribe is monophyletic with two major clades, the Curcuma clade and the Hedychium clade.
C. NGAMRIABSAKUL   +2 more
openaire   +1 more source

Phylogenetic Relationships in the Genus Rosa Revisited Based on rpl16, trnL-F, and atpB-rbcL Sequences [PDF]

open access: yesHortScience, 2015
Three chloroplast DNA (cpDNA) sequences [the rpl16 intron, the trnL-F , and atpB-rbcL intergenic spacer ( IGS )] were employed to study phylogenetic relationships in the ...
Chengyuan Liu   +6 more
openaire   +1 more source

Phylogeny of Miliusa (Magnoliales: Annonaceae: Malmeoideae: Miliuseae), with descriptions of two new species from Malesia

open access: yesEuropean Journal of Taxonomy, 2013
The molecular phylogeny of Miliusa (Annonaceae) is reconstructed, with 27 (of ca. 50) species included, using a combination of seven plastid markers (rbcL exon, trnL intron, trnL-F spacer, matK exon, ndhF exon, psbA-trnH spacer, and ycf1 exon ...
Tanawat Chaowasku, Paul J.A. Keßler
doaj   +1 more source

A Roadmap for Using Hybridisation Capture–Based Target Enrichment of Ancient Environmental DNA in Palaeoecology

open access: yesMolecular Ecology Resources, Volume 26, Issue 5, July 2026.
ABSTRACT Recovering ancient DNA from environmental samples is transforming the way we understand historical ecosystems. While high‐throughput sequencing of the total DNA in environmental samples (shotgun metagenomic sequencing) reveals the taxonomic contents of these samples, the genetic signals of some taxa (e.g., eukaryotes) can be weak compared to ...
Nicole R. Foster   +11 more
wiley   +1 more source

Refining generic limits in Hyacinthinae (Asparagaceae, Scilloideae): Conflict and concordance between morphology and phylogenomics

open access: yesJournal of Systematics and Evolution, Volume 64, Issue 4, Page 751-775, July 2026.
Using Angiosperms353 and plastid genome skimming, the generic limits of Hyacinthinae were explored. Floral morphology conflicts with the molecular groupings in many cases, but bulb morphology and cytogenetics define groups similar to those defined by DNA.
Hannah Hall   +3 more
wiley   +1 more source

Oxytropis ikhbogdicus (Section Mesogaea, Fabaceae), A New Species From Mongolia Based on Morphological and Molecular Analyses

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
Oxytropis ikhbogdicus, a new species endemic to Mongolia, is described and illustrated. The new species was confirmed by phylogenetic analysis based on the complete plastome genome and combined nuclear ribosome internal transcribed spacer (ITS), psbA‐trnH, and trnF‐L sequence data as well as morphological characteristics. ABSTRACT Oxytropis ikhbogdicus,
Dariganga Munkhtulga   +8 more
wiley   +1 more source

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