Leicester research paves way for first use in Europe of an insect to fight invasive plant
... was one the biggest females in the world- a clone
of cuttings brought into Britain in the 1850s. ... on the precise region of Japan where the European clone
of Japanese Knotweed originated.
"A number ... the fact that our Japanese knotweed is a single clone
I feel we have excellent prospects for the ...
Sand dollar larvae use cloning to 'make change,' confound predators
Within 24 hours, the larvae developed clone
buds that ultimately detached and formed new ... that were not exposed to fish mucous did not clone
Vaughn suggests that cloning ... perspective, if both the original larva and the clone
survive that's great then there are two of you," ...
Universitat Autonoma de Barcelona researchers first to clone mice in Spain
... of Cell Biology, Physiology and Immunology at UAB.
In order to clone
the animals, researchers collected oocytes and surrounding cumulus cells ... at birth and develop correctly. In 2003, Spanish scientists were able to clone
a female Pyrenean mountain goat using a cell from the last animal of this ...
Sex in the Caribbean: Environmental change drives evolutionary change -- eventually
... show that cupuladriid bryozoans, colonial animals similar to corals that walk around on the sea floor, reproduced either by cloning or by sex. To clone
a new colony requires immediately available energy, so when nutrients are scarce, it's better not to fragment. Nutrients to form eggs and sperm ...
Parasitic worms make sex worthwhile
... (hot spots) and absent elsewhere (cold spots).
"Asexual females can have a very large reproductive advantage, as all the individuals in the clone
can directly produce offspring," said IU evolutionary biologist and coauthor Curt Lively, who has been working on the system for 25 years. "So ...
Study finds role for parasites in evolution of sex
... keep asexual organisms from getting too plentiful. When an asexual creature reproduces, it makes clonesexact genetic copies of itself. Since each clone
has the same genes, each has the same genetic vulnerabilities to parasites. If a parasite emerges that can exploit those vulnerabilities, it can wipe ...
Is this the beginning of the end of plant breeding?
... No human is a clone
of their parents but the same cannot be said for other living things. While your DNA is a combination of half your mother and half your father, other ...
Scientists shed light on inner workings of human embryonic stem cells
... for the pluripotent state, and you get them to express themselves in the skin cells; that's how you can restore the embryonic stem cell state. You clone
a gene, you put it into what's called a vector, which means you put it into a little bit of housing that allows those genes to get into a cell, then ...
Texas-sized tract of single-celled clones
... and evolutionary biology. "There are thought to be two ways that these colonies can form at the edge of a species' natural range: either just one clone
finds its way there, or perhaps a few make it there but they compete with each other and just one wins out."
Based on these studies, Strassmann, ...
Tailor-made recombinant proteins in mammals
... sulfatase, into the nonstandard amino acid residue formylglycine. "Formyl" is another name for a simple aldehyde group.
"So all we had to do was clone
the nucleotides encoding those six residues from the sulfatase sequence into the DNA of the target protein we want to produce, at the site ...
Uncultured bacteria found in amniotic fluids of women who experience preterm births
... which some have not been previously linked with preterm birth.
"By employing 16s rRNA gene-based polymerase chain reactions (PCR) followed by the clone
analysis, we stand to determine the identity and true relationship between intra-amniotic bacterial infection and the onset of preterm birth," said ...
New way to make malaria medicine also first step in finding new antibiotics
... pathways the better we can find unknown phosphonates with antibiotic properties," Metcalf said.
His lab has developed a directed strategy to clone
and sequence the genes that are required for phosphonate synthesis in bacteria, making the search efficient and exhaustive. Metcalf is optimistic ...
ISU researchers help map first plant-parasitic nematode genome sequence
... males of the species even exist. And since the females don't mate to reproduce, the offspring should be genetically identical to the mother -- like a clone
- but they aren't. And as the offspring matures into males or females, some start as females and then change into males.
Baum's group included ...
Tiny invasive snail impacts Great Lakes, alters ecology
... clones; in each case, only one snail needed to be introduced to begin the invasion. The snails in the Great Lakes region appear to be the same as one clone
found in Europe.
"In the western U.S., this species is of special concern largely because of their ability to modify ecosystems," Levri told ...
Evolution of fruit size in tomato
... have been employing the data emerging from the International Tomato Genome Sequencing Project as well as the tools of structural genomics to clone
and characterize the major gene and QTL responsible for extreme fruit size during tomato domesticationfas.
The first QTL, fw2.2, was the first ...
Database shows effects of acid rain on microorganisms in Adirondack Lakes
... were examined for each water body, ranging from water clarity and temperature to aluminum and hydraulic retention time for a one-year period. clone
"libraries" representing the bacteria were developed from the lake samples and analyzed. The researchers found that the species diversity in ...
Scientists find bacteria thriving on a feast of seafloor rock
... Sea, and the seafloor near Hawaii. They used various molecular and genetic analysis tools (such as quantitative polymerase chain reaction and clone
libraries) to quantify the abundance, richness, and diversity of communities of bacteria living on young ocean crust.
What they found was a ...
Ovarian cancer stem cells identified, characterized
... of the cells were positive for cancer stem cell marker CD44, while 90 percent were CD44 negative.
Mor and his team were able to isolate and clone
the ovarian cancer stem cells. They found that these cells were highly resistant to conventional chemotherapy while the non-cancer stem cells ...
Is DNA repair a substitute for sex?
... can serve as templates to repair damaged genes on the other chromosome. The bdelloid, though, always seems to reproduce asexually, by making a clone
of itself. How then, does it cope with deleterious mutations?
In the first PNAS paper, MBL adjunct scientist Matthew Meselson and Eugene ...
Purging the plantain pests in Africa
... Professor Atkinson says: It makes the job tougher. Plantains are re-planted using offshoots. This means that every plant is a genetically identical clone
of the original - and a pest that affects plantains is capable of affecting every single plant.
There are four or five types of problematic worm ...
Is hybridoma production about to take a quantum leap forward?
... hybridoma cells in NPD-based media as compared to DI-based media. Moreover, they found that the cloneability of cells from a semi-stable clone
is also enhanced in NPD-based media.
The researchers noted that hybridoma clones grown on NPD-based media secreted more monoclonal antibodies ...
Baumann lab identifies elusive telomere RNA subunit in single cell model
... turned out to be quite different in these species compared to human cells. Recently, the Baumann Lab used a biochemical approach to identify and clone
the RNA subunit of telomerase in Schizosaccharomyces pombe, or fission yeast.
The identification of the fission yeast equivalent of the ...
Human clones: New U.N. analysis lays out world's choices
... are easily skirted if researchers can simply move to other jurisdictions. Disgraced South Korean medical researcher Woo Sook Hwang, whose human clone
claims were unsubstantiated, reportedly continues his work in Thailand.
The report explores in depth the difficult ethical considerations behind ...
A new kind of rat model
... and ADHD.
The models are genetically altered rats, originally created by researchers at the Medical College of Wisconsin (MCW) as a way to clone
genes related to human diseases. Called consomic rats, they were produced by replacing a single chromosome from the genetic background of a diseased ...
Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine
... time-consuming process required to isolate and clone
the antigens for vaccine development.
In ... Institute have now developed a novel way to clone
an antigen recognized by a helper T cell. ... researchers used their new cloning technique to clone
copies of the RPL8 antigen from a melanoma. The ...
Community MRSA is re-emergence of 1950s pandemic, study suggests
This "re-equipping and re-emergence" of a clone
that caused a pandemic 40-50 years ago could mean ... them with the same regions in genes from a clone
of one of the most common CA MRSAs which has been ... findings suggest that this particular CA MRSA clone
has evolved from the earlier 80/81 type, ...
Scientists clone mice from adult skin stem cells
... scientists now shows that adult stem cells taken from skin can be used to clone
mice using a procedure called nuclear transfer. The findings are reported ... is not the first time scientists have tried to use adult stem cells to clone
mice. Experiments using adult hematopoetic stem cells ?the cells in the ...
Ten years later, Dolly is still making headlines
... the lead researcher of a team of scientists who were first to successfully clone
an animal, Dolly the sheep, ten years ago, will speak about his plans to clone
embryos to alter disease genes in humans. Wilmut will be joined by two ...
Molecular thermometers on skin cells detect heat and camphor
... Scripps Research Assistant Professor Ardem Patapoutian, was the first to clone
a protein (TRPV3) that the researchers believed was involved in our ... similarity to other temperature-gated proteins led them to identify and clone
TRPV3 as a possible molecular thermometer--perhaps the first one that ...
Cancer researchers add spice to research against rare neuromuscular disease
... some previously baffling developments late in the course of that disease, opening the door to newer treatments.
In 1988 Chang was the first to clone
the androgen receptor, and he was the first to discover that the protein needs molecular allies called co-factors to accomplish many of its tasks. ...
Cloned mice created from fully differentiated cells, a milestone in cloning research
... differentiated cells.
"Of the 1,828 nuclear transfers we performed with stem cells, very few could develop to the blastocyst stage and not one clone
was produced. With such odds, it's hard to believe that Dolly and other cloned animals could have possibly been derived from adult stem cells. Much ...
The power of one: A simpler, cheaper method for cell fusion
... how genes guide protein synthesis. It also may be used to create large quantities of different disease-specific antibodies and has helped scientists clone
The current technique for electrofusion requires a pricey electrical pulse-generator, which could cost as much as $13,000. Lu's ...
Scientists crack genetic secrets of human egg
... found about one in a thousand genes that are unique to the eggs - and some of them, theydon't have a known function yet," Cibelli said. "Now we can clone
these genes and put them into cells and see if they may have a role in the creation of stem cells - without fertilization or destruction of human ...
Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals
... base pairs and utilized traditional sequencing technologies used for the Human Genome Project as well as the new parallel pyrosequencing method to clone
and insert missing fragmented DNA and create a library of Neanderthal DNA.
Unlike the libraries used to sequence the human genome, which ...
Cloning techniques produce FDA-approved antibiotic
... bacteria, but generally in low yields. Using a cloning method developed by Illinois microbiologist William W. Metcalf, the researchers were able to clone
the essential genes for fosfomycin synthesis and then produce it in a non-native host, potentially in much larger quantities.
After isolating the ...
P(acman) takes a bite out of deciphering Drosophila DNA
... copies of the DNA when needed.
Koen then integrated a technique called “recombineering?into the strategy, which facilitates the scientist to clone
large chunks of DNA and subsequently allows them to make specific mutations anywhere he or she wants in the gene.
The third technique allows ...
Eminent inventor of DNA fingerprinting gains new recognition
... victim? Are these bones truly the remains of the last Czar of Russia? Jeffreys' technique was even able to tell us whether Dolly was in fact the clone
of another sheep.
"The new discipline of forensic molecular biology is therefore a direct outcome of Jeffreys' research, but his discoveries have ...
Leptin found to control appetite and limb development in frogs
... for the "obese" gene that makes leptin is quite different between frogs and humans, so Denver's lab had some puzzles to solve to successfully clone
the frog gene. But once they solved those issues and put the gene into E. coli bacteria to make quantities of leptin, the frog protein turned out to ...
UAB researchers confirm HIV-1 originated in wild chimpanzees
... acids (viral genetic information) in as many as 35 percent of chimpanzees in some ape communities.
The UAB investigators went on to molecularly clone
and sequence the complete viral genomes from four individual chimpanzees. According to UAB post-doctoral researcher Brandon Keele, Ph.D., lead author ...