News tagged with horizontal gene
Aphids borrowed bacterial genes to play host
Mar 09, 2009 |
4.5 / 5 (2) |
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Most aphids host mutualistic bacteria, Buchnera aphidicola, which live inside specialized cells called bacteriocytes. Buchnera are vital to the aphids well being as they provide essential amino acids that are scarce in its ...
Darwin's Tree of Life May Be More Like a Thicket
Biology /
Jan 27, 2009 |
4.8 / 5 (9) |
2
(PhysOrg.com) -- In On The Origin of Species, Darwin used the image of a tree of life to illustrate how species evolve, one from another. Even today, branches sprouting from lower branches (representing ancest ...
Blocking the spread of antibiotic resistance in bacteria
Biology /
Dec 18, 2008 |
2.5 / 5 (2) |
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It's as simple as A, T, G, C. Northwestern University scientists have exploited the Watson-Crick base pairing of DNA to provide a defensive tool that could be used to fight the spread of antibiotic resistance in bacteria ...
Forced evolution: Can we mutate viruses to death?
Nov 10, 2008 |
4.5 / 5 (17) |
12
It sounds like a science fiction movie: A killer contagion threatens the Earth, but scientists save the day with a designer drug that forces the virus to mutate itself out of existence. The killer disease? Still a fiction. ...
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Mutant gene lessens devastation of flesh-eating bacteria
6 hours ago |
4 / 5 (1) |
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(PhysOrg.com) -- Scientists at The Methodist Hospital Research Institute in Houston recently discovered a simple gene mutation that decreases the chance people will get a flesh-eating disease called necrotizing fasciitis. ...
Biotech Advance May Yield Genetically Sterile Screwworms
9 hours ago |
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(PhysOrg.com) -- Transgenic screwworms developed by Agricultural Research Service (ARS) scientists could set the stage for new, improved methods of eradicating the pest based on the sterile insect technique ...
Looks can be deceiving: Lizards acquire the same camouflaging adaptation in different ways
16 hours ago |
4.8 / 5 (6) |
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(PhysOrg.com) -- Does it matter if nature solves the same problem multiple ways? A NSF-supported study of lizard populations in White Sands, New Mexico has helped researcher Erica Rosenblum of the University ...
Chemists Discover How Cells Create Stability During Critical DNA-to-RNA Information Transfers
Dec 29, 2009 |
4.6 / 5 (12) |
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(PhysOrg.com) -- A pair of University of Massachusetts Amherst chemists believe they have for the first time explained how the main players in transcription -- RNA polymerase, RNA (red in illustration) and ...
Tracking Virus Resistance Genes in Watermelon Made Easier
Dec 29, 2009 |
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(PhysOrg.com) -- Finding watermelon genes that confer resistance to the devastating zucchini yellow mosaic virus (ZYMV) has just been made easier, thanks to molecular markers developed by Agricultural Research ...
'Notch'ing up a role in the multisystem disease tuberous sclerosis complex
Dec 28, 2009 |
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Two independent teams of researchers have identified a role for enhanced activation of the signaling protein Notch in tumors characterized by inactivation of either the TSC1 or the TSC2 protein. As indicated by Warren Pear, ...
Newly Discovered Gene Mutation Linked to Nerve Diseases
Dec 28, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- Researchers from the Northwestern University Feinberg School of Medicine have identified mutations in the gene for TRPV4 that cause two related degenerative motor nerve disorders, scapuloperoneal spinal muscular ...
Scientists discover a controller of brain circuitry
Medicine & Health / Neuroscience
Dec 28, 2009 |
4.9 / 5 (20) |
3
By combining a research technique that dates back 136 years with modern molecular genetics, a Johns Hopkins neuroscientist has been able to see how a mammal's brain shrewdly revisits and reuses the same molecular ...
Schizophrenia mouse model should improve understanding and treatment of the disorder
Dec 28, 2009 |
4 / 5 (4) |
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Scientists have created what appears to be a schizophrenic mouse by reducing the inhibition of brain cells involved in complex reasoning and decisions about appropriate social behavior.
New RNA interference technique can silence up to five genes
Dec 28, 2009 |
5 / 5 (4) |
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Researchers at MIT and Alnylam Pharmaceuticals report this week that they have successfully used RNA interference to turn off multiple genes in the livers of mice, an advance that could lead to new treatments ...
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