Sentences with phrase «of pigment genes»

The more copies of the pigment gene a coral has, the brighter its range of potential colors.

Genetic transmission of deafness in dogs with the recessive alleles of this pigment gene, such as the Dalmatian (which is homozygous for sw), is less clear.

Not exact matches

While we both made use of the dominant gene for hair and eye pigment, in us somewhere was the recessive genes for blonde and blue.

Three of the darker - skin gene variants appear to have evolved from variants linked with less pigment.

Luckily, along came Armstead and his colleagues, who were working to precisely locate the sequence of a gene called staygreen (sgr) in the meadow grass Festuca pratensis, some variants of which remain green in drought and other unfavorable conditions because they are unable to break down a green pigment.

This gene, which controls the amount of melanin pigment produced, accounts for about 74 percent of the total variation in people's eye color.

Of the darker - skin gene variants, three appear to have evolved from less pigmented variants.

The next step, he said, is to demonstrate the same results among those called protananamolous, who suffer from a less common form of color blindness involving an overabundance of red pigment genes.

Humans have genes that code for three different types of visual pigments, called opsins.

The genes that affect hair colour also affect other cancer types, while other pigment genes affect the chances of having Crohn's and other forms of bowel disease.

Researchers analyzed the genomes of 16 related orange and white tigers in captivity, fully mapping those of the three parent tigers to show that a mutation in one pigment gene called SLC45A2 is at play — the very same gene that drives lighter coloring in people of European ancestry, chickens, and some mice.

The researchers are not yet sure how this happens; the mutated gene may alter the production of the pigment, melanin, they report online today in Current Biology.

Researchers at the University of California, Santa Barbara, and their colleagues inserted the gene for this extra pigment into the mouse X chromosome.

A small number of known genes, it is thought, account for nearly 50 percent of pigment variation.

This gene is involved in regulating production and storage of melanin, the pigment that determines hair, skin and eye color.

Many of these genes lie within the DNA segment that differs between carrion and hooded crows, suggesting that somehow the pigment genes that give the two groups their unique appearance are also keeping the species separate.

Reasoning that the female version of L - opsin might also do the trick for males, researchers from the University of Washington used a harmless virus to carry the pigment gene behind the monkeys» retinas.

«Evolutionary shifts from blue to red flowers in Penstemon predictably involves degeneration of the same particular flower pigment gene, suggesting there are limited genetic «options» for evolving red flowers in this group,» said Wessinger.

In these species, the gene agouti controls the relative amount of red and yellow pigments in the skin, and melanocortin 1 receptor (Mc1r) does the same for black and brown.

Petal color for both flowers is heavily influenced by a gene known as YUP, which permits or prevents the deposition of yellow pigments.

Now, researchers have discovered how the corals» pigment genes control the range of colors they can produce.

Using a slew of molecular techniques, the team identified the color - stealing culprit in white grapes as a mobile fragment of DNA, called a retrotransposon, which inserts itself into the gene controlling pigment production.

Previously, Shozo Kobayashi of the National Institute of Fruit Tree Science in Tsukuba, Japan, identified a specific gene that controls the production of this pigment in black - skinned grapes.

About 10 % of cases are due to a mutation in retinal pigment epithelium 65 (RPE65), a gene that codes for an enzyme that helps retinal cells make rhodopsin.

When activated by the relevant light colour, these genes feed signals to other added genes that then produce visible pigment of an identical colour.

The gene is involved in the production of melanin, a pigment that gives hair and skin their hues.

The flowers reminded Teeri, who has studied plant pigments at the University of Helsinki, of blooms created in a landmark gene - engineering experiment some 30 years earlier.

Through the systematic analysis of ommochrome and porphyrin biosynthetic pathways, the authors identified several genes required for producing planarian pigment.

This could be due to incomplete gene knockdown, the presence of another body pigment in analogy with the Drosophila eye, or accumulation of colored intermediates in ommochrome biosynthesis (for instance, kynurenine imparts a yellow color to the eyes of deep - sea fish; Thorpe et al., 1992).

The team discovered that visual pigment genes have changed substantially during snake evolution, including many changes to the wavelengths of light that the pigments are sensitive to.

The team, which included Museum researchers Dr Bruno Simões and Filipa Sampaio, studied the genes involved in producing these visual pigments in 69 species of snake.

Melanocytes respond by altering gene transcription, and these changes in gene expression profiles result in easily quantifiable phenotypes such as modified pigment production (a hallmark of melanocyte differentiation state) and changes in morphological cell properties.

The treatment could help people who have a fault in a gene called RPE65, which causes problems in the retinal pigment epithelium (RPE), a thin layer of cells that support and nourish photoreceptors.

In the article, the researchers show that the white coat color in dogs is caused by mutations in the MITF gene that is crucial for normal development of pigment cells.

Potential projects include identifying common pathways that modify retinal degenerative disease from a large collection of actively maintained mouse models; determining molecular networks implicated in pathological disruption of the retinal pigment epithelium; identifying molecular pathways that regulate postnatal ocular growth; and using mouse models to assess the pathogenic role of gene variants that increase the risk of age - related macular degeneration as identified by human genome - wide association studies.

Spectroscopy & Application of Lasers, Zare / Moerner / +, 6 - 1 Nuclear Hormone Signaling, Chambon / Evans / Jensen, 6 - 1 Bioinorganic Chemistry, Gray / Lippard / Holm / — , 8 - 1 The Field (everything not listed), 10 - 1 Techniques in DNA Synthesis, Caruthers / Hood / +, 10 - 1 Electrochemistry / Electron Transfer, Bard / Hush / Gray / — , 19 - 1 Instrumentation / Techniques in Genomics, Venter / +, 19 - 1 Biological Membrane Vesicles, Rothman / Schekman / +, 19 - 1 Molecular Studies of Gene Recognition, Ptashne, 19 - 1 Organic Electronics, Tang / +, 39 - 1 Polymer Science, Matyjaszewski / Langer / + / — 69 - 1 Solar Cells, Grätzel / +, 74 - 1 Mechanistic Enzymology, Walsh / Stubbe / Koshland / + / — , 74 - 1 Combinatorial Chemistry / DOS, Schreiber / +, 99 - 1 Pigments of Life, Battersby / +, 99 - 1 Development of the Birth Control Pill, Djerassi, 99 - 1 Molecular Modeling and Assorted Applications, Karplus / Houk / Schleyer / Miller / + / — , 99 - 1 Applications of NMR Spectroscopy, Pines / Roberts / McConnell / + / — , 99 - 1 Development of Chemical Biology, Schultz / Schreiber / +, 99 - 1 Self - Assembly, Whitesides / Nuzzo / Stang / — , 149 - 1 Small Regulatory RNA, Ambros / Baulcombe / Ruvkun, 149 - 1 Nanotechnology, Lieber / Whitesides / Alivisatos / Mirkin / Seeman / + / — , 149 - 1 Eukaryotic RNA Polymerases, Roeder, 149 - 1 Contributions to Theoretical Physical Chemistry, Rice / +, 149 - 1 Mechanical Bonds and Applications, Sauvage / Stoddart / +, 149 - 1 Bio - & Organo - catalysis, List / Lerner / Barbas / + / — , 149 - 1 Organic Synthesis, Evans / Danishefsky / Nicolaou / Ley / Trost / Stork / Wender / Kishi / + / — , 199 - 1 Leptin, Coleman / Friedman / Leong, 199 - 1 Fluorocarbons, DuPont / Curran / — , 199 - 1 Understanding of Organic Stereochemistry, Mislow, 199 - 1 Tissue Engineering, Langer / +, 199 - 1 Contributions to Bioorganic Chemistry, Breslow / Eschenmoser / +, 199 - 1 Dendrimers, Frechet / Tomalia / +, 399 - 1 Zeolites, Flanigan, 399 - 1 Molecular Recognition, Dervan / +, 399 - 1 Molecular Machines, Stoddart / Tour / + / — , 399 - 1 Astrochemistry, Oka, 999 - 1

These «deletions» shut down the genes that normally kick off a cascade of proteins, known as the anthocyanin pathway, which is supposed to produce red pigment.

-- We have shown that the genetic change causing fibromelanosis is a complex rearrangement that leads to increased expression of Endothelin 3, a gene which is known for promoting the growth of pigment cells, explains Ben Dorshorst the post-doctoral researcher responsible for the work.

Pigment genes could affect the chances of having Crohn's or other bowel diseases.

The research published by GenoMEL has identified inherited genes which increase melanoma risk which are pigment genes (affecting skin colour and vulnerability to sunburn), genes which are associated with having more moles (melanocytic naevi) and others associated with a part of the genetic makeup of the cell called the telomere.

A gene called Alx3 blocks the differentiation of pigment - producing cells in the skin of the African striped mouse, thus generating the mouse's characteristic light - colored stripes, a new...

Recently, we demonstrated that anthocyanins, which are pigments widespread in the plant kingdom, have the potency of anti-obesity in mice and the enhancement adipocytokine secretion and adipocyte gene expression in adipocytes.

Eating turmeric in a small quantity or taking it in a dietary supplement is believed to support healthier - looking skin, including for people with eczema, psoriasis, and acne.56) The curcuminoid pigments in turmeric support genes that enhance the body's synthesis of antioxidants, protecting the skin and other organs from oxidative damage due to free radicals from environmental toxins or chronic stress.

Two genes have been previously implicated in the loss of pigment in Appaloosas.

The purpose of this study is to 1) investigate the morphology of the pigment producing cells (melanocytes) and determine if any ultrastructural differences exist among varying appaloosa genotypes, and 2) examine previously associated genes to determine the biological mechanism of pigment loss.

Color is actually governed by several sets of genes, some that produce the color itself, others that influence intensity, pattern, amount and distribution of white markings, or distribution of pigment on individual hairs.

«E», normal extension of black, allows the A-series alleles to show through, and «e», recessive red / yellow, overrides whatever gene is present at the A locus to produce a dog which shows only phaeomelanin pigment in the coat.

This dog carries two copies of KB which prevents expression of the agouti gene (A locus) and allows for solid eumelanin (black pigment) production in pigmented areas of the dog.

The KB variant of the CBD103 gene promotes eumelanin (black pigment) synthesis by blocking agouti gene expression at the A Locus which would otherwise inhibit MC1R production of eumelanin.

The alternate ky variant of the CBD103 gene disrupts the normal function of the CBD103 gene allowing for agouti (A locus) gene expression and the inhibition of black pigment synthesis.