Results 61 to 70 of about 2,808,714 (170)

Complete Chloroplast Genomes of Five Ulmus pumila Cultivars: Comparative Analysis, Evolutionary Dynamics, and Germplasm Authentication Implications

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
We sequenced and characterized the complete chloroplast genomes of five Ulmus pumila cultivars, which possess typical circular quadripartite structures (159,391–159,769 bp, 35.47%–35.56% GC) encoding 131–133 genes and identified abundant SSRs, long repeats, and core hypervariable molecular markers (trnH‐GUG_psbA, ndhF_rpl32), while IR boundary and ...
Ning Wang   +8 more
wiley   +1 more source

Factors related to aggravated Cylindrospermopsis (cyanobacteria) bloom following sediment dredging in an eutrophic shallow lake

open access: yesEnvironmental Science and Ecotechnology, 2020
In recent years, Cylindrospermopsis raciborskii blooms have been widely found worldwide. Topics dealing with the mitigation of C. raciborskii bloom is of great importance for toxins produced could threaten public health.
Xiaochuang Li   +5 more
doaj   +1 more source

Sex-determining region complements traditionally used in phylogenetic studies nuclear and chloroplast sequences in investigation of Aigeiros Duby and Tacamahaca Spach poplars (genus Populus L., Salicaceae)

open access: yesFrontiers in Plant Science, 2023
Members of the genus Populus L. play an important role in the formation of forests in the northern hemisphere and are used in urban landscaping and timber production. Populus species of closely related sections show extensive hybridization.
Elena V. Borkhert   +23 more
doaj   +1 more source

Plastid Phylogenomics of Elatostemateae (Urticaceae): Insights Into Structural Variation and Phylogenetic Relationships

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
This study leverages complete plastid and nuclear ribosomal DNA sequences from 40 species to resolve the complex phylogeny and organellar genome evolution of the diverse plant tribe Elatostemateae. The analysis uncovered significant plastome structural variations, including novel inversions and a rare mitochondrial DNA integration event, and identified
Long‐Fei Fu   +5 more
wiley   +1 more source

Insights into adaptive evolution of plastomes in Stipa L. (Poaceae)

open access: yesBMC Plant Biology, 2022
Background The study presents results of research on the evolution of plastid genomes in Stipa L. which is a large genus of the Poaceae family, comprising species diverse in terms of geographic distribution, growing under highly variated habitat ...
Katarzyna Krawczyk   +3 more
doaj   +1 more source

Characterization of the First Complete Plastome of Zingiber emeiense: Insights Into Its Phylogenetic Position

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
This study assembled the first complete chloroplast genome of the endemic medicinal plant Zingiber emeiense, revealing its genomic structure and evolutionary features as well as clarifying its phylogenetic placement. It further provides valuable genomic resources for the conservation and taxonomic research of this endemic species.
Hualan Chen   +11 more
wiley   +1 more source

Selection of a marker gene to construct a reference library for wetland plants, and the application of metabarcoding to analyze the diet of wintering herbivorous waterbirds [PDF]

open access: yesPeerJ, 2016
Food availability and diet selection are important factors influencing the abundance and distribution of wild waterbirds. In order to better understand changes in waterbird population, it is essential to figure out what they feed on.
Yuzhan Yang   +4 more
doaj   +2 more sources

Complete Chloroplast Genome of Rhipsalis baccifera, the only Cactus with Natural Distribution in the Old World: Genome Rearrangement, Intron Gain and Loss, and Implications for Phylogenetic Studies

open access: yesPlants, 2020
Rhipsalis baccifera is the only cactus that naturally occurs in both the New World and the Old World, and has thus drawn the attention of most researchers. The complete chloroplast (cp) genome of R. baccifera is reported here for the first time.
Millicent Akinyi Oulo   +9 more
doaj   +1 more source

Does nutrient scarcity select for Synechococcus clade III in the Mediterranean Sea?

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract Synechococcus inhabit both nutrient‐rich estuaries and oligotrophic waters, yet exhibit distinct niche segregation across phylogenetic clades. Previous studies indicated clade III predominated in the ultraoligotrophic Mediterranean Sea. However, the mechanisms underlying clade III's dominance over other clades in ultraoligotrophic waters ...
Xiaodong Zhang   +7 more
wiley   +1 more source

Characterization of the structure and expression of the Euglena gracilis chloroplast rpoB and 23S ribosomal-RNA genes

open access: yes, 1990
The rpoB gene coding for a β-like subunit (homologous to the E. coli DNA-dependent RNA polymerase β subunit) of the chloroplast DNA-dependent RNA polymerase was located on the chloroplast genome of Euglena gracilis distal to the rrnC ribosomal RNA operon.
Yepiz Plascencia, Gloria Martina
core   +4 more sources

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