Sentences with phrase «genes in vertebrate»

LMU researchers have shown that patterns of activity of certain genes in vertebrate embryos correlate with differences in the length of the neck region.

Prof Bentzen from Dalhousie University said: «Although this study focused on MHC genes in vertebrates, the evolutionary dynamics described in it likely apply to other gene families, for example resistance genes and those which prevent self - fertilization in plants (self - incompatibility loci) that are caught up in their own evolutionary races.»

In addition to Otop1, there are two other related genes in vertebrates (Otop2 and Otop3), and this gene family is represented in the fruit fly Drosophila melanogaster.

Not exact matches

On closer inspection, however, the gene we had discovered in vertebrates proved not to be a retrovirus gene at all.

It appears the vertebrate src gene has survived long periods of evolution without major change, implying that it is important to the well - being of the species in which it persists.

Some researchers thought that these organisms, which arose after bacteria but before vertebrates, simply lost the genes in question at some point in their evolutionary history.

Several of the network genes Volkan and her team identified have counterparts in humans and other vertebrates, which suggests the same basic mechanism could be at work in building the nervous system in other animals too.

Before the consortium came together, he had participated in sequencing the genomes of two vocal learners, a songbird and a parrot, but he knew he couldn't do all of the additional sequencing and analysis work that would be required to identify genes related to vocal learning — not by himself, at least — so he teamed up with Genome 10K, a project aiming to collect genomes for 10,000 vertebrate species.

All land vertebrates carry a version of the FOXP2 gene, so some of the Oxford researchers then teamed up with colleagues from the Max Planck Institute for Evolutionary Anthropology in Germany to analyze what is unique about the variant in humans and to track how the gene had evolved in our ancestors.

«Given the similarities in the molecules and the mechanisms involved in limb development in vertebrates and invertebrates, the fly is a very useful genetic model in which to identify new genes that potentially participate in limb development in vertebrates and their possible association with congenital diseases,» says Ana Ferreira, who has participated in the study.

He explains that «we are the first to show these similarities between gene activation in diapause and aging in vertebrates.

«We have already found several gene types that are dramatically expanded in the octopus relative to other vertebrates, and we think they play a critical role allowing a new level of neuronal complexity to be reached in invertebrates,» he said.

The MHC is a family of genes found in all vertebrates that encodes vital proteins in the immune defense system.

One gene cluster connected with the development of the pharynx in vertebrates and acorn worms is particularly interesting.

TheCiona genome contains ∼ 16,000 protein - coding genes, similar to the number in other invertebrates, but only half that found in vertebrates.

They compared 146 genes in many chordates, including hagfish and lamprey (considered the most primitive vertebrates) and larvaceans, which are sea - faring relatives of sea squirts.

«MHC genes are an important line of defence in the immune system in vertebrates, including humans.

In the course of their research, however, the scientists discovered that the nerve net of the embryonic sea anemone is formed by a set of neuronal genes and signal factors that are also found in vertebrateIn the course of their research, however, the scientists discovered that the nerve net of the embryonic sea anemone is formed by a set of neuronal genes and signal factors that are also found in vertebratein vertebrates.

Similarly, the gene for blue eyes codes for paler skin coloring in many vertebrates and hence might have piggybacked along with lighter skin.

«Our hypothesis is that structures conserved in RNA are like a common template for regulating gene expression in mammals — and that this could even be extrapolated to vertebrates and less complex organisms.»

... The FOXP2 gene has been around for a very long time, found in similar form in distantly related vertebrate species, and it may be important not only for brain development and function but also in other tissues.»

The team also compared the 7442 genes found as single copies in both the cobra and the python with the same genes in all other land vertebrates sequenced so far.

In recent years, scientists have found that in vertebrates, including mammals, the earliest stages of segmentation are governed by a key set of genes, headed up by the so - called Notch genIn recent years, scientists have found that in vertebrates, including mammals, the earliest stages of segmentation are governed by a key set of genes, headed up by the so - called Notch genin vertebrates, including mammals, the earliest stages of segmentation are governed by a key set of genes, headed up by the so - called Notch gene.

Schoppmeier and his colleagues are now trying to determine whether Notch and related genes turn on and off in the same fashion in early spider embryos as they do in vertebrates.

That included several genes linked to novelty - seeking in vertebrates, such as receptors for the neurotransmitters dopamine and glutamate.

One of those genes, ALX1, is involved in the facial development of vertebrates, including fish and mammals.

After removal of similar viral genomes, bootscan plots of the whole genome and individual genes from a subset representing human / simian adenoviruses in species A — G and all non-primate vertebrate adenoviruses were generated.

Scientists think that this family evolved by gene duplication, branch by branch, from a single ancestor present in primitive vertebrates.

In vertebrates, gene content has remained relatively constant, while the fraction of non-coding DNA varies drastically [1 — 3].

Howard Hughes Medical Institute researchers have harnessed a mobile gene from the cabbage looper moth and modified it for routine use to determine the function of genes in mice and other vertebrates...

This molecule brings a revolutionary technology platform for genetic engineering in vertebrates, including gene discovery in model species and for therapeutic transgene delivery for possible human applications.

The result was the discovery of three new mammalian genes - known as sonic, Indian, and desert hedgehog - and the realization that the proteins they coded accounted for a significant proportion of all developmental interactions known to occur in the vertebrate embryo.

«It was exciting to see that half of the domestication signals in the genome point to genes that have to do with brain development and function», says professor Kerstin Lindblad - Toh, senior author and director of SciLifeLab Uppsala, and scientific director of vertebrate genome biology at the Broad Institute.

Their preservation in the zebrafish allows us to visualize in this transparent genetic vertebrate model whether these variants are just neutral or if they disrupt the regulation of one the neighbor genes, possibly revealing the actual gene affected in AMD human patients.

Biased gene conversion and GC - content evolution in the coding sequences of reptiles and vertebrates.

A new study from SciLifeLab / Uppsala University published in PLOS ONE shows that genes crucial for vision were multiplied in the early stages of vertebrate evolution and acquired distinct functions leading to the sophisticated mechanisms of vertebrate eyes.

New students with interests in molecular genetics, gene regulation, and developmental biology in both invertebrate and vertebrate models are welcome to enquire about any of the following projects listed below.

In vertebrates, 9 - amino acid containing peptides in the vasopressin / oxytocin family all evolved from a common ancestral molecule, vasotocin, in which a gene mutation gave rise to the mammalian homologue, vasopressiIn vertebrates, 9 - amino acid containing peptides in the vasopressin / oxytocin family all evolved from a common ancestral molecule, vasotocin, in which a gene mutation gave rise to the mammalian homologue, vasopressiin the vasopressin / oxytocin family all evolved from a common ancestral molecule, vasotocin, in which a gene mutation gave rise to the mammalian homologue, vasopressiin which a gene mutation gave rise to the mammalian homologue, vasopressin.

To test a possible homology of these cells with the chordamesoderm, we chose a chordamesoderm - specific gene set according to the following criteria: (i) specificity — their combined expression uniquely defines the chordamesoderm; (ii) conservation — their chordamesoderm expression is conserved in at least three of four vertebrate species; and (iii) function — they have proven essential for chordamesoderm development or signaling.

Gene duplications and subsequent mutations also led to the evolution of numerous sister nonapeptides across vertebrates, including isotocin in teleost fish and oxytocin in mammals.

The length of the loop is at least 8 nucleotides long; there is no apparent maximum in loop length, even in organisms possessing only a single Dicer gene, contra (6), even though most taxa like vertebrates with single Dicer genes never show loop lengths greater than ~ 40 nucleotides.

Another study, published in Current Biology, highlights the complexity of the regulatory systems involved in organism reproduction through the study of a gene that is essential for meiosis in vertebrates, but not Drosophila.

Although none of the genes were exclusively expressed in the annelid mesodermal midline, their combined coexpression was unique to these cells (implying that mesodermal midline in annelids and chordamesoderm in vertebrates are more similar to each other than to any other tissue).

This hypothesis was recently confirmed by the team of Abalo and Larhammar in a detailed study on the visual opsin gene family analysing a broad range of vertebrate species.

They report that the genes encoding the different subunits of PDE6 in cones and rods arose from ancestral genes that duplicated in the early vertebrate genome doublings, and further expanded in teleosts due to the extra genome duplication that took place in this lineage.

The researchers discovered striking differences from other invertebrates, including widespread genomic rearrangements and a dramatic expansion of a family of genes involved in neuronal development that was once thought to be unique to vertebrates.

After receiving a PhD in molecular genetics and gene silencing from Pierre and Marie Curie University Paris, I joined as a postdoc the laboratory of Frederic Rosa at Ecole Normale Superieure Paris to investigate the genetic basis of vertebrate development.

Altogether, the data presented in this study reinforces the evolutionary importance of the two rounds of whole genome duplication that occurred in the vertebrate ancestor and sheds light on the differential behaviour of gene duplicates that arose in these events.

Interestingly, they also identified another ancient vertebrate gene copy, which they named PDE6I, and has been lost in amniotes.

... According to a review by Lovich and Ennen (2013), the construction and operation of wind farms have both potential and known impacts on terrestrial vertebrates, such as: (i) increase in direct mortality due to traffic collisions; (ii) destruction and modification of the habitat, including road development, habitat fragmentation and barriers to gene flow; (iii) noise effects, visual impacts, vibration and shadow flicker effects from turbines; (iv) electromagnetic field generation; (v) macro and microclimate change; (vi) predator attraction; and (vii) increase in fire risks.