Sentences with phrase «in vertebrates»

This supports the view that teeth evolved from scales, which arose much earlier in vertebrate evolution.»

The wandering cells are neural crest cells, which appear early in development in vertebrate embryos.

Bone morphogenetic protein 2 signaling negatively modulates lymphatic development in vertebrate embryos

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

This result is surprising because, until recently, scientists believed that TRH only occurred in vertebrates with a thyroid gland, such as fish, birds, and mammals.

See more fossils in the Vertebrate Paleontology collection or learn more about the Vertebrate Paleontology Collection study grant.

From an evolutionary perspective, the findings reveal that sophisticated immune defense mechanisms in respiratory surfaces came about very early in vertebrate evolution.

But in a commentary accompanying the Nature report, Walter D. Koenig of the University of California at Berkeley and Joseph Haydock of Gonzaga University note that the meerkat research casts doubt on whether optimal skew, which successfully explains reproduction in certain insect societies, can also explain the patterns seen in vertebrate reproduction.

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

Prior research showed that the mPOA is important for social and reproductive behavior in all vertebrate species studied from fish to human, but it has been unclear whether this area drives social motivation through circuit connections with reward systems in the brain.

Research activities are also concentrated on the identification of disease mechanisms in vertebrates with the ultimate goal to identify molecular targets and cells with therapeutical potential.

Work in my lab explores how steroid hormones and neuropeptides in the vasopressin / oxytocin family influence social behavior in vertebrates.

Indeed, lipid changes in the cerebellum, a primitive part of the brain similar in all vertebrates, were comparable between humans and chimps.

Experiments on cells from frogs have shown that sensitive light - detecting cells in vertebrate eyes, called rod cells, do fire in response to single photons.

Commissural axon navigation: Control of midline crossing in the vertebrate spinal cord by the semaphorin 3B signaling.

But they can be traced back in vertebrate brains from fish to frogs to rodents.

Hydraulic control of tuna fins: A role for the lymphatic system in vertebrate locomotion.

Alex Thiery, a PhD student at the University of Sheffield who contributed to the study said: «We are interested in the developmental origin of the pufferfish beak as it presents a special opportunity to understand how evolutionary novelty can arise in vertebrates more generally.

Scientists interested in bone healing have focused on a family of proteins called Wnts (pronounced «wints»), which regulate bone formation in vertebrates by sending signals between cells.

The esophagus (also spelled oesophagus / œsophagus), or gullet is an organ in vertebrates which consists of a muscular tube through which food passes from the mouth area to the stomach.

This protein is present in all vertebrates for which data are available, and it is likely that DMRT3 nerve cells have a central role for coordinating movements in humans as well», ends Klas Kullander.

FcRn bears an intriguing structural resemblance to molecules called major histocompatibility complex (MHC) proteins, which function in the vertebrate adaptive immune response by presenting antigenic peptides to T cells.

He pioneered the molecular analysis of neural circuit assembly in the vertebrate central nervous system.

«Among other proteins, we managed to find collagen, one of the most important proteins in the bodies of animals in general, and in vertebrates in particular.»

To uncover new insights that link variation in DNA with variation in vertebrate form and function, Castoe's group uses supercomputing and data analysis resources at the Texas Advanced Computing Center or TACC, one of the world's leading centers for computational discovery.

Gilbert agrees: «There is more variation [in vertebrate embryos] than had been assumed.»

The scientists looked into the medial preoptic area (mPOA) of the brain, which earlier scientific works have associated to social and reproductive patterns in all vertebrate species, from fish to human.

Androgen is the generic term for any natural or synthetic compound, usually a steroid hormone, that stimulates or controls the development and maintenance of masculine characteristics in vertebrates by binding to androgen receptors.

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

«We identified a motif in the protein component of telomerase that controls how the enzyme carries out its activity in vertebrates such as ourselves.»

He wants to know if similar parings of hardwired and plastic development exist in vertebrates such as humans.

This is the first time these proteins, which are key to building the nascent retina in vertebrates, have been found in invertebrates.

«These findings demonstrate a single origin of gills that likely corresponds with a key stage in vertebrate evolution: when some of our earliest relatives transitioned from filtering particles out of water pumped through static bodies to actively swimming through the oceans,» says lead author Dr Andrew Gillis, a Royal Society University Research Fellow in Cambridge's Department of Zoology, and a Whitman Investigator at the Marine Biological Laboratory in Woods Hole, US.

IEGs are widely utilized for neuroethological studies in vertebrates [8]--[12], and we recently identified the first insect neuronal IEG from the European honeybee, naming it kakusei [13].

Tuning curves have provided the first - order description of virtually every sensory system, from orientation columns in the vertebrate visual cortex, to place cells in the hippocampus and wind - detecting neurons in the cricket cercal system [2].

Yeasts are single - celled and bloodless, yet they carry genes that orchestrate the growth of new blood vessels in vertebrates.

Rapid developments in synchrotron tomography foresee the visualisation of even larger objects at higher resolutions in the future and will continue to expand the role of computed tomography in vertebrate palaeontology.

Evolution has favoured selection the camera eye that arose in the vertebrate ancestor over 500 million years ago.

However, such multimerization capabilities should not interfere with the intended goal of non-toxically labeling cells for deep tissue and intravital imaging as the Amrose variants 1 — 3 were developed in vertebrate cells.

Dr. Jessell, the Claire Tow professor in the departments of Neuroscience and Biochemistry & Molecular Biophysics at Columbia University, was selected for his pioneering work in discovering the principles of the molecular mechanisms that direct neuronal diversity and circuit assembly in the vertebrate central nervous system.

In an effort to understand the molecular basis of adaptation in vertebrates, researchers sequenced the genomes and transcriptomes of five species of the African cichlid fish.

See more fossils in the Vertebrate Paleontology collection or learn more about theVertebrate Paleontology Collection study grant.

Less dramatic but of great import, zebrafish, like mice and humans, are vertebrate - having a backbone and a tubular nervous system divided into the brain and spinal cord - and are therefore more likely to be genetically similar to humans than non-vertebrate models such as yeast, roundworms and fruit flies (even though the latter have provided valuable information about mechanisms in vertebrate).

Shared Rules of Development Predict Patterns of Evolution in Vertebrate Segmentation.