Results 51 to 60 of about 8,966 (220)

Using Nuclear Genomic Data to Address Intractable Relationships and Gene Tree Discordance in an Ancient Group of Gymnosperms (Ephedra, Gnetales)

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
Low‐copy nuclear genes were used to address the notoriously difficult phylogeny of Ephedra. Additionally, we explored the potential effect of putative paralogy, intra‐locus recombination, and chimeric sequences on phylogenetic estimation. ABSTRACT The evolutionary history of Ephedra L.
Ruben Blokzijl, Catarina Rydin
wiley   +1 more source

Biochemical characterization and DNA repair pathway interactions of Mag1-mediated base excision repair in Schizosaccharomyces pombe

open access: yes, 2005
The Schizosaccharomyces pombe mag1 gene encodes a DNA repair enzyme with sequence similarity to the AlkA family of DNA glycosylases, which are essential for the removal of cytotoxic alkylation products, the premutagenic deamination product hypoxanthine ...
Alseth, I   +8 more
core   +1 more source

Cellular location and activity of Escherichia coli RecG proteins shed light on the function of its structurally unresolved C-terminus [PDF]

open access: yes, 2014
RecG is a DNA translocase encoded by most species of bacteria. The Escherichia coli protein targets branched DNA substrates and drives the unwinding and rewinding of DNA strands.
Briggs, Geoffrey S.   +13 more
core   +1 more source

The Two Faces of Saccharomyces cerevisiae RAD9 Function in Homologous Recombination: Suppressor and Promoter of Genome Instability

open access: yesDNA
Recombinogenic DNA damage can initiate chromosomal rearrangements that can alter gene expression or accelerate cancer progression in higher eukaryotes.
Michael Fasullo
doaj   +1 more source

Genetic landscape of open chromatin in yeast. [PDF]

open access: yesPLoS Genetics, 2013
Chromatin regulation underlies a variety of DNA metabolism processes, including transcription, recombination, repair, and replication. To perform a quantitative genetic analysis of chromatin accessibility, we obtained open chromatin profiles across 96 ...
Kibaick Lee   +10 more
doaj   +1 more source

Retaining Models of Human Evolution After Repeated Falsifications—Why?

open access: yesNatural Sciences, Volume 6, Issue 3, July 2026.
Two 19th century paradigms of human evolution emerged: Humans are subdivided into isolated populations in an evolutionary tree, versus human populations interbreed (gene flow) with no isolates. The tree model has been rejected whenever tested since the 1970's, whereas gene flow consistently fits.
Alan R. Templeton
wiley   +1 more source

The XPF-ERCC1 endonuclease and homologous recombination contribute to the repair of minor groove DNA interstrand crosslinks inmammalian cells produced by the pyrrolo[2,1-c][1,4]benzodiazepine dimer SJG-136

open access: yes, 2005
SJG-136, a pyrrolo[2,1-c][1,4]benzodiazepine (PBD) dimer, is a highly efficient interstrand crosslinking agent that reacts with guanine bases in a 5'-GATC-3' sequence in the DNA minor groove.
Hartley, J.A.   +20 more
core   +1 more source

Mu insertions are repaired by the double-strand break repair pathway of Escherichia coli. [PDF]

open access: yesPLoS Genetics, 2012
Mu is both a transposable element and a temperate bacteriophage. During lytic growth, it amplifies its genome by replicative transposition. During infection, it integrates into the Escherichia coli chromosome through a mechanism not requiring extensive ...
Sooin Jang   +2 more
doaj   +1 more source

Association of the Disheveled 2 (DVL2) Gene c.2044delC Variant with Increased Risk of Canine Cleft Palate

open access: yesAnimal Genetics, Volume 57, Issue 3, June 2026.
ABSTRACT Canine congenital cleft palate is one of the most common craniofacial anomalies in dogs, characterized by a failure of the palatal shelves to fuse properly during fetal development, leading to abnormal communication between the oral and nasopharyngeal cavities.
Jonas Donner   +5 more
wiley   +1 more source

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