Sentences with phrase «marker gene»

A "marker gene" refers to a specific gene that scientists use to track and identify certain characteristics or processes within cells or organisms. It acts as a biological signpost, helping researchers to study and understand various aspects of genetics, such as gene expression, cell development, or disease progression. By attaching or activating these marker genes, scientists can easily observe and analyze certain traits or behaviors, aiding in their research work. Full definition
Biosafety and risk assessment framework for selectable marker genes in transgenic crop plants: a case of the science not supporting the politics.
We introduce a differential abundance analysis method for the analysis of sparse high - throughput data from large - scale surveys of marker genes for microbial communities.
The SC3 tool contains added features that help interpret the biological function of the cells in that group, such as lists of marker genes for each group.
Selectable marker genes in transgenic plants: applications, alternatives and biosafety.
(A) Expression of 5 stem marker genes in single cells isolated from the edge (E), mid (M) or adjacent center (C) region of HES2 colonies.
Since the February breakthrough, PPL Therapeutics of Edinburgh, which collaborates with the Roslin Institute, has produced five lambs from fetal cells that were genetically modified to carry marker genes and genes for human proteins.
The meeting program will encompass investigations of eukaryote biodiversity, ecology, and evolution, using approaches such as rRNA marker genes, shotgun metagenomics, metatranscriptomics, and computational biology tools and software pipelines.
Additionally, modified hDPSCs expressed elevated levels of odontogenic marker genes involved in tooth development and dentin mineralization, indicating odontoblastic differentiation, and attached and spread well on the surface of calcium phosphate cement (CPC) scaffolds employed for implantation.
ZIG differential abundance detection method accounts for bias introduced by the under - sampling of microbial communities commonly found in large - scale marker gene studies.
To address this gap, the team of researchers profiled the tissue microbial community of liver fluke - infected and non-infected CCA based on the 16S ribosomal RNA (rRNA) gene, a highly conserved marker gene for studying different bacterial lineages.
They also say they are concerned about the antibiotic resistance marker gene that the wheat contains, and assert that the researchers «are openly releasing a synthetic version of a compound that... has had no long - term health safety tests whatsoever for human consumption, or for its impacts on non-target species.»
The researchers began with a simple marker gene that confers resistance to the antibiotic neomycin in bacteria.
Typically these sorts of data have been analysed by only looking at a handful of known marker genes.
Since telomeres normally silence genes located near them, the researchers looked for mutations that would restore the expression of marker genes placed near two telomeres.
AmphoraNet, AmphoraVizu - metagenomic and genomic analysis online tools using phylogenetic marker genes
Pictured Above: Greater Prairie Chicken germ - cells, fluorescing green thanks to the integration of a GFP marker gene.
12/8/2008 Interactive Gene «Networks» May Predict if Leukemia is Aggressive or Slow - Growing Rather than testing for individual marker genes or proteins, researchers at the University of California, San Diego (UC San Diego) and the Moores UCSD Cancer Center have evidence that groups, or networks, of interactive genes may be more reliable in... More...
Growing genetically modified corn containing the ampicillin marker gene has no influence on abundance of this gene in soil bacteria (Demanèche and others 2008).
With this reporter we split ES cell cultures into two fractions that both express certain stem cell markers but only one of which expresses low levels of an endodermal marker gene.
Expression of four stem cell marker genes normalized to cyclophilin in nine single cell equivalents prepared from a pool of nine lysed HES3 cells.
In addition both constructs contain the constitutive Ubi promoter and nos T terminator, the bar gene conferring herbicide tolerance and may contain further sequences of bacterial origin including the neomycin phosphotransferase (nptI) selectable marker gene.
After the sorting, we performed whole genome amplification on individual aggregates then sequenced the 16S rRNA marker genes to identify cells comprising the aggregate.
(A) Expression of 5 stem marker genes in single HES3 cells isolated by FACS into four populations according to levels of expression of GCTM2 and CD9 surface antigens (H = HIGH, M = MID, L = LOW, N = NEG).
Subsequently, marker genes involved in pathways modulated by salicylic and jasmonic acid were investigated.
Our gut already contains billions of bacteria carrying resistances to kanamycin and ampicillin, the two most commonly used antibiotic marker genes in GM crops.
Those that survived developed into embryos, 28 of which were implanted into 11 cows; three gave birth to genetically identical calves, all of which carried the neomycin - marker gene.
The researchers — James Robl, a developmental biologist and his colleagues at the University of Massachusetts at Amherst, and Steve Stice at Advanced Cell Technology in Worcester, Massachusetts — inserted a marker gene fused with a gene for resistance to the chemical neomycin into a culture of connective tissue cells called fibroblasts.
They injected this handcrafted virus into rats and found that the marker gene was indeed active only in smooth muscle cells.
But in the 1 September issue of the Journal of Clinical Investigation, cardiologist Michael Parmacek and his colleagues at the University of Chicago describe how they deleted two genes from the common cold virus to make it unable to cause any sniffling or fever, then replaced them with a marker gene that turns out an easily detected protein and the SM22 promoter, which turns on expression of genes in smooth muscle cells that surround arteries.
To test whether the V. cholerae repeat is in fact part of an integron, the researchers made a gene «cassette» that contained a Vibrio gene and a marker gene between two copies of the repeat.
Cells in which this marker gene is active can be stained blue and identified under the microscope.
To see if they could selectively target the hair follicles in this cultured skin, Li and Hoffman took liposomes carrying a marker gene and applied them to the skin - bearing sponge.
The team also created a mouse strain whose astrocytes carried a marker gene whose presence could be followed biochemically and with the electron microscope.
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