Results 41 to 50 of about 6,802,541 (195)

Enzyme-assisted high throughput sequencing of an expanded genetic alphabet at single base resolution

open access: yesNature Communications
With just four building blocks, low sequence information density, few functional groups, poor control over folding, and difficulties in forming compact folds, natural DNA and RNA have been disappointing platforms from which to evolve receptors, ligands ...
Bang Wang   +8 more
doaj   +1 more source

Bacterial N4-methylcytosine as an epigenetic mark in eukaryotic DNA

open access: yesNature Communications, 2022
Eukaryotic DNA can be methylated as 5-methylcytosine and N6-methyladenine, but whether other forms of DNA methylation occur has been controversial. Here the authors show that a bacterial DNA methyltransferase was acquired >60 Mya in bdelloid rotifers ...
Fernando Rodriguez   +3 more
doaj   +1 more source

Molecular Evolution of the Major Arthropod Chemoreceptor Gene Families.

open access: yesAnnual Review of Entomology, 2019
The evolutionary origins of the three major families of chemoreceptors in arthropods-the odorant receptor (OR), gustatory receptor (GR), and ionotropic receptor (IR) families-occurred at the base of the Insecta, Animalia, and Protostomia, respectively ...
H. Robertson
semanticscholar   +1 more source

Spatial organization of the kelp microbiome at micron scales

open access: yesMicrobiome, 2022
Background Elucidating the spatial structure of host-associated microbial communities is essential for understanding taxon-taxon interactions within the microbiota and between microbiota and host. Macroalgae are colonized by complex microbial communities,
S. Tabita Ramírez-Puebla   +5 more
doaj   +1 more source

Energy at Origins: Favorable Thermodynamics of Biosynthetic Reactions in the Last Universal Common Ancestor (LUCA)

open access: yesFrontiers in Microbiology, 2021
Though all theories for the origin of life require a source of energy to promote primordial chemical reactions, the nature of energy that drove the emergence of metabolism at origins is still debated. We reasoned that evidence for the nature of energy at
Jessica L. E. Wimmer   +8 more
doaj   +1 more source

The SoftWipe tool and benchmark for assessing coding standards adherence of scientific software

open access: yesScientific Reports, 2021
Scientific software from all areas of scientific research is pivotal to obtaining novel insights. Yet the coding standards adherence of scientific software is rarely assessed, even though it might lead to incorrect scientific results in the worst case ...
Adrian Zapletal   +3 more
doaj   +1 more source

Sex chromosome evolution: molecular aspects of Y-chromosome degeneration in Drosophila.

open access: yesGenome Research, 2005
Ancient Y-chromosomes of various organisms contain few active genes and an abundance of repetitive DNA. The neo-Y chromosome of Drosophila miranda is in transition from an ordinary autosome to a genetically inert Y-chromosome, while its homolog, the neo ...
D. Bachtrog
semanticscholar   +1 more source

Molecular evolution of the Chlamydiaceae. [PDF]

open access: yesInternational Journal of Systematic and Evolutionary Microbiology, 2001
Phylogenetic analyses of surface antigens and other chlamydial proteins were used to reconstruct the evolution of the Chlamydiaceae. Trees for all five coding genes [the major outer-membrane protein (MOMP), GroEL chaperonin, KDO-transferase, small cysteine-rich lipoprotein and 60 kDa cysteine-rich protein] supported the current organization of the ...
Robin M. Bush, Karin D. E. Everett
openaire   +2 more sources

Evolutionary genomics of socially polymorphic populations of Pogonomyrmex californicus

open access: yesBMC Biology
Background Social insects vary considerably in their social organization both between and within species. In the California harvester ant, Pogonomyrmex californicus (Buckley 1867), colonies are commonly founded and headed by a single queen (haplometrosis,
Mohammed Errbii   +5 more
doaj   +1 more source

Climate change affects the parasitism rate and impairs the regulation of genes related to oxidative stress and ionoregulation of Colossoma macropomum

open access: yesScientific Reports, 2021
Global climate change represents a critical threat to the environment since it influences organismic interactions, such as the host-parasite systems, mainly in ectotherms including fishes.
Jaqueline Custodio da Costa   +4 more
doaj   +1 more source

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