Results 31 to 40 of about 149,007 (299)

The Evolution of Mammalian Olfactory Receptor Genes [PDF]

open access: yesGenetics, 1997
We performed a comparative study of four subfamilies of olfactory receptor genes first identified in the dog to assess changes in the gene family during mammalian evolution, and to begin linking the dog genetic map to that of humans. The human subfamilies were localized to chromosomes 7, 11, and 19.
L, Issel-Tarver, J, Rine
openaire   +2 more sources

A Quantitative Model for Human Olfactory Receptors [PDF]

open access: yes, 2012
A wide variety of chemicals having distinct odors are smelled by humans. Odor perception initiates in the nose, where it is detected by a large family of olfactory receptors (ORs).
Aritra Bose   +2 more
core   +2 more sources

Human specific loss of olfactory receptor genes [PDF]

open access: yesProceedings of the National Academy of Sciences, 2003
Olfactory receptor (OR) genes constitute the basis for the sense of smell and are encoded by the largest mammalian gene superfamily of >1,000 genes. In humans, >60% of these are pseudogenes. In contrast, the mouse OR repertoire, although of roughly equal size, contains only ≈20% pseudogenes.
Yoav, Gilad   +3 more
openaire   +2 more sources

Olfactory Sensilla and Olfactory Genes in the Parasitoid Wasp Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) [PDF]

open access: yesInsects, 2021
Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) is a tiny natural egg parasitoid of several agricultural pest insects, which has been widely used in the biological control for Plutella xylostella, Helicoverpa armigera, Spodoptera frugiperda and Ectomyelois ceratoniae. However, limited studies have been conducted on T.
Basman H. Al-Jalely, Wei Xu
openaire   +3 more sources

Identification of novel post-transcriptional features in olfactory receptor family mRNAs. [PDF]

open access: yes, 2015
Olfactory receptor (Olfr) genes comprise the largest gene family in mice. Despite their importance in olfaction, how most Olfr mRNAs are regulated remains unexplored.
Espinoza, Josh L   +3 more
core   +1 more source

The evolutionary origins of the vertebrate olfactory system [PDF]

open access: yesOpen Biology, 2020
Vertebrates develop an olfactory system that detects odorants and pheromones through their interaction with specialized cell surface receptors on olfactory sensory neurons.
Guillaume Poncelet   +1 more
doaj   +1 more source

Rapid evolution of chemosensory receptor genes in a pair of sibling species of orchid bees (Apidae: Euglossini). [PDF]

open access: yes, 2015
BackgroundInsects rely more on chemical signals (semiochemicals) than on any other sensory modality to find, identify, and choose mates. In most insects, pheromone production is typically regulated through biosynthetic pathways, whereas pheromone sensory
Brand, Philipp   +5 more
core   +3 more sources

Olfactory Receptor Gene Polymorphisms and Nonallergic Vasomotor Rhinitis [PDF]

open access: yesJournal of Asthma, 2008
We sought a genotype-phenotype association: between single-nucleotide polymorphisms (SNPs) in olfactory receptor (OR) genes from the two largest OR gene clusters and odor-triggered nonallergic vasomotor rhinitis (nVMR). In the initial pedigree screen, using transmission disequilibrium test (TDT) analysis, six SNPs showed "significant" p-values between ...
Jonathan A, Bernstein   +4 more
openaire   +2 more sources

Cortically evoked motor responses in patients with Xp22.3-linked Kallmann's syndrome and in female gene carriers [PDF]

open access: yes, 1992
Patients with Kallmann's syndrome show hypothalamic hypogonadism, hyposmia, and congenital mirror movements. As a correlate, a defect of gonadotropic neuron migration into the brain was recently detected. Considering abnormal outgrowth of neurons also as
Aizawa   +33 more
core   +1 more source

Olfactory receptor neurons express olfactory marker protein but not calpain 5 from the same genomic locus

open access: yesMolecular Brain, 2019
Gene expression is highly regulated to functionally diversify cells. Genes that cooperate in the same physiological processes occasionally reside within nearby regions in a chromosome.
Noriyuki Nakashima   +3 more
doaj   +1 more source

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