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4 days ago · Selected multi-copy DNA tandem duplication of plasmid DNA in Bacillus subtilis using the TDAH technique. A Schematic map of the repeating unit in the TDAH vector pOr3 for tandem duplication of Bacillus subtilis plasmid sequences. The length of the repeating unit was 1.6 kb. Primers used for PCR and DNA sequencing are indicated by arrows.
5 days ago · The Streptanthoid complex, a clade of primarily Streptanthus and Caulanthus genera in the Thelypodieae tribe (Brassicaceae) is an emerging model system for ecological and evolutionary studies. This Complex spans the full range of the California Floristic Province including desert, foothill, and mountain environments. The ability of these related species to radiate into dramatically different ...
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4 days ago · A few key enzymes in the desaturation metabolic pathway regulate unsaturated fatty acid biosynthesis in the ER. Genetic evolution, including genome duplication or gene family expansion, is crucial for generating new gene functions and/or for intensifying pathways [48, 49]. Divergence from an ancestral genome can result in an evolutionary bias ...
5 days ago · A comparative transcriptomic analysis of eight tissue types in twenty bilaterian species reveals the long-lasting effects of genome duplication on the evolution of novel tissue-specific gene ...
5 days ago · Background Unlike Transposable Elements (TEs) and gene/genome duplication, the role of the so-called nuclear plastid DNA sequences (NUPTs) in shaping the evolution of genome architecture and function remains poorly studied. We investigate here the functional and evolutionary fate of NUPTs in the orphan crop Moringa oleifera (moringa), featured by the highest fraction of plastid DNA found so ...
4 days ago · Definition. 00:00. …. Genomic imprinting is the process by which only one copy of a gene in an individual (either from their mother or their father) is expressed, while the other copy is suppressed. Unlike genomic mutations that can affect the ability of inherited genes to be expressed, genomic imprinting does not affect the DNA sequence itself.
4 days ago · Most prokaryotes have very little repetitive DNA in their genomes. However, some symbiotic bacteria (e.g. Serratia symbiotica) have reduced genomes and a high fraction of pseudogenes: only ~40% of their DNA encodes proteins. Some bacteria have auxiliary genetic material, also part of their genome, which is carried in plasmids.
