Sentences with phrase «new alleles in»

Research at VetGen and independently at the University of Saskatchewan has identified two new alleles in the E locus, Eg and Eh.

Not exact matches

«If a new mutation arose in a certain population and it was strongly favored, natural selection would drive the frequency of that allele up very quickly,» he says.

Each Pm3 allele in the four new lines displayed the same activity as in the parental line, which results in increased overall activity, since it came from two different gene variations.

The predominant modern su1 allele was found in all of the older Mexican cobs, but the younger New Mexican cobs had several different alleles, suggesting that this gene was still undergoing selection when maize reached North America.

GC - biased gene conversion correlates with recombination rate (86), and new GC alleles reach fixation more easily in species with larger population sizes, which tend to also have smaller body sizes (87).

Their work, which is published in Nature Ecology and Evolution, shows for the first time the existence in Leishmania of a relation between changes in chromosome copy number and the selection of new alleles important for parasite survival.

It also contains some of the most variable human genes: hundreds of versions — or alleles — exist of each gene in the population, allowing our bodies to react to a huge number of disease - causing agents and adapt to new ones.

A region inside the csd gene in particular represents a hot - spot with a high evolutionary rate that, together with certain amino acid mutations, decisively contributes to the formation of new csd alleles in the flanking regions.

New csd alleles were created in a relatively quick period for evolution: ca.

A new study published in the current issue of Biological Psychiatry suggests that even when controlling for the risk for Alzheimer's disease, the APOE ε4 allele also conveys an increased risk for late - life depression.

A naturally occurring variant in a different gene, the so - called APOE2 allele, has been previously shown to protect against Alzheimer's disease, but Stefansson says the new variant, while rarer, confers much greater protection.

CVC researchers Danila Valmori and Maha Ayyoub identify a new NY - ESO - 1 epitope, 119 - 143 (core region 123 - 137), presented by HLA - DR52b (HLA - DRB3 * 0202), an MHC class II allele expressed by half of Caucasians, that is immunodominant in the context of vaccine - elicited immune responses.

Piroska Szabó of the Van Andel Research Institute in Grand Rapids, Michigan, was once excited to think she'd discovered a new gene that expressed only the maternal allele — until she realized that the RNA sequences she was looking at were from a gene that had been misannotated as a nuclear gene, explaining the maternal - only inheritance.

When Simon's team deleted all H3.3 genes, they found that certain previously silenced transposable elements were reactivated and continued to multiply in the genome — the result is the appearance of new genetic alleles and chromosomal abnormalities, both are familiar early events in the formation of tumors.

Any combination of somatic insertions or deletions (indels) in the p.R259fs allele that restored the reading frame before the stop - gain at residue 274, and did not produce a new stop - gain, would produce an almost full - length BRCA2 protein.

Besides ensuring correct chromosome segregation during the first meiotic division, crossovers create new allele combinations in gametes, thereby increasing genomic diversity, increasing the chance of creating offsprings with better phenotypic fitness, and providing the basis for faster evolution.

A failure to identify new unc - 124 alleles led us to sequence the unc - 7 coding region cloned from unc - 124 (hs10) mutants (strain HH34), and a TGC to TAC change (C238Y) in the predicted second TM domain of UNC - 7 was identified.

It was demonstrated in individuals living in a malaria endemic region of Papua New Guinea that Duffy binding protein adherence to RBCs is significantly reduced for erythrocytes of P. vivax malaria patients who carry one Duffy - negative allele [15].

Although the newest edition of the authoritative textbook, Vitamin D, claims that in humans calcidiol binds with equal affinity to the DBP whether it is derived from vitamin D2 or vitamin D3, 37 the citation for this statement is the author's own PhD thesis, in which he reported results obtained from testing the DBP of a mere two people.48 Since the gene for the DBP is one of the most polymorphic known (meaning it exists in many forms), existing in three common alleles and 124 known rarer alleles (alleles are specific forms of the same gene), each allele itself having many polymorphisms, 37 a sample size of two is rather unconvincing.

Even though these data are preliminary, the results present an opportunity to utilize new genotyping information by screening potential sires and dams for the disease - associated alleles for these nine SNPs and combine this information with current orthopedic screening schemes in breeding strategies to help further reduce the prevalence of patellar luxation in this breed.