Results 51 to 60 of about 4,221,836 (305)

The classification and evolution of bacterial cross-feeding [PDF]

open access: yes, 2019
Bacterial feeding has evolved toward specific evolutionary niches and the sources of energy differ between species and strains. Although bacteria fundamentally compete for nutrients, the excreted products from one strain may be the preferred energy ...
Shorten PR   +4 more
core   +3 more sources

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

Evolutionary and Expression Analyses Show Co-option of khdrbs Genes for Origin of Vertebrate Brain

open access: yesFrontiers in Genetics, 2018
Genes generated by whole genome duplications (WGD) can be co-opted by changing their regulation process or altering their coding proteins, which has been shown contributable to the emergence of vertebrate morphological novelties such as vertebrate ...
Su Wang   +13 more
doaj   +1 more source

Prebiotic competition and evolution in self-replicating polynucleotides can explain the properties of DNA/RNA in modern living systems

open access: yesBMC Evolutionary Biology, 2020
Background We hypothesize prebiotic evolution of self-replicating macro-molecules (Alberts, Molecular biology of the cell, 2015; Orgel, Crit Rev Biochem Mol Biol 39:99-123, 2004; Hud, Nat Commun 9:5171) favoured the constituent nucleotides and ...
Hemachander Subramanian   +2 more
doaj   +1 more source

aristaless1 has a dual role in appendage formation and wing color specification during butterfly development

open access: yesBMC Biology, 2023
Background Highly diverse butterfly wing patterns have emerged as a powerful system for understanding the genetic basis of phenotypic variation. While the genetic basis of this pattern variation is being clarified, the precise developmental pathways ...
Erick X. Bayala   +3 more
doaj   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk   +10 more
wiley   +1 more source

Ecological causes of morphological evolution in the three-spined stickleback [PDF]

open access: yes, 2013
The central assumption of evolutionary theory is that natural selection drives the adaptation of populations to local environmental conditions, resulting in the evolution of adaptive phenotypes.
C. Smith (2247166)   +14 more
core   +1 more source

Egalitarian cooperation linked to central oxytocin levels in communal breeding house mice

open access: yesCommunications Biology
Relationships between adult females are fundamental to understanding diversity in animal social systems. While cooperative relationships between kin are known to promote fitness benefits, the proximate mechanisms underlying this are not well understood ...
Stefan Fischer   +6 more
doaj   +1 more source

The Evolution of Holmes, Holmes and Evolution [PDF]

open access: yesCalifornia Law Review, 1984
The occasion of these remarks is the one-hundredth anniversary of the publication of Holmes' The Common Law, but it is not so much his book as it is his later career that explains why we observe the occasion. The Common Law is a widely known book but one more widely known than read, while perhaps it is more often read than understood.
openaire   +1 more source

Pediatric Idiopathic Multicentric Castleman Disease Is Often Severe But Responsive to Siltuximab

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Idiopathic multicentric Castleman disease (iMCD) is a potentially fatal immunologic disorder marked by widespread lymphadenopathy and inflammation. Siltuximab, an interleukin‐6 (IL‐6) inhibitor, is the only FDA‐approved treatment for adult patients with iMCD.
Bridget Austin   +17 more
wiley   +1 more source

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