Results 361 to 370 of about 1,221,818 (402)
Some of the next articles are maybe not open access.

The use marker alleles for the introgression of linked quantitative alleles

Theoretical and Applied Genetics, 1977
It is shown that when an exotic strain and a commercial strain differ genetically at a quantitative locus and at an adjoining marker locus, repeated backcrosses to the commercial strain, retaining only backcross progeny carrying the exotic marker allele, will allow the effective introgression of the linked quantitative allele from the exotic to the ...
J. Plotkin-Hazan, M. Soller
openaire   +3 more sources

Allelic Exchange

2014
Methods used to understand the function of a gene/protein are one of the hallmarks of modern molecular genetics. The ability to genetically manipulate bacteria has become a fundamental tool in studying these organisms and while basic cloning has become a routine task in molecular biology laboratories, generating directed mutations can be a daunting ...
McKenzie K, Lehman   +2 more
openaire   +2 more sources

Frequency of Gc Alleles and a Variant Gc Allele in Iceland

Human Heredity, 1980
The gene frequency for Gc1 and Gc2 in an Icelandic population was found to be 0.71 and 0.29, respectively. An electrophoretic variant similar to Gc Norway was detected in 5 individuals of the same family. A pedigree of 14 family members, including two spouses, is presented.
Gudmundur Thordarson   +3 more
openaire   +3 more sources

Simultaneous estimation of null alleles and inbreeding coefficients.

Journal of Heredity, 2009
Although microsatellites are a very efficient tool for many population genetics applications, they may occasionally produce "null" alleles, which, when present in high proportion, may affect estimates of key parameters such as inbreeding and relatedness ...
I. Chybicki, J. Burczyk
semanticscholar   +1 more source

Rare Alleles and Selection

Theoretical Population Biology, 2001
A subpopulation D of rare alleles is considered. The subpopulation is part of a large population that evolves according to a Moran model with selection and growth. Conditional on the current frequency, q, of the rare allele, an approximation to the distribution of the genealogy of D is derived.
openaire   +4 more sources

Allele diversity.

2006
International ...
Foulley, Jean Louis, J. L.   +1 more
openaire   +2 more sources

Introgression of crop alleles into wild or weedy populations

, 2013
The evolutionary significance of introgression has been discussed for decades. Questions about potential impacts of transgene flow into wild and weedy populations brought renewed attention to the introgression of crop alleles into those populations.
N. Ellstrand   +13 more
semanticscholar   +1 more source

Time of the S Allele Action

Nature, 1958
THE genetic systems of self-incompatibility among the homomorphic flowering plants have been broadly subdivided into two groups1: (1) ‘gametophytic systems’ in which the pollen reaction is determined by the S allele contained in the pollen (Leguminosae, Scrophulariaceae, Solanaceae, Gramineae) and (2) ‘sporophytic systems’ in which the pollen reaction ...
openaire   +3 more sources

The distribution of rare alleles

Journal of Mathematical Biology, 1995
Population geneticists have long been interested in the behavior of rare variants. The definition of a rare variant has been the subject of some debate, centered mainly on whether alleles with small relative frequency should be considered rare, or whether alleles with small numbers should be.
Simon Tavaré, Paul Joyce
openaire   +3 more sources

On the Genealogy of a Rare Allele

Theoretical Population Biology, 1997
The gene genealogy is derived for a rare allele that is descended from a mutant ancestor that arose at a fixed time in the past. Following Thompson (1976, Amer. J. Human Genet. 28, 442-452), the fractional linear branching process is used as a model of the demography of a rare allele.
openaire   +3 more sources

Home - About - Disclaimer - Privacy