Results 221 to 230 of about 143,746 (232)

Stochastic Processes in Population Genetics, with Special Reference to Distribution of Gene Frequencies and Probability of Gene Fixation

open access: closed, 1970
The fundamental quantity which is used in population genetics to describe the genetic composition of a Mendelian population (i.e. reproductive community) is the gene frequency, or the proportion of a given gene in the population. Thus, a population is characterized by a set of gene frequencies.
Makoto Kimura
openaire   +3 more sources

Analysis of the Fixation of Discrete Genetic Structures by Means of an Integral Model of Evolution in a Mendelian One-Locus Population of Diploid Organisms [PDF]

open access: possibleRussian Journal of Genetics, 2004
An integral model of the evolution of a Mendelian one-locus population of diploid organisms with continual allele diversity developing under density-limiting conditions or without density limitation has been proposed and analyzed. The model was used to study the mechanism of the appearance of discrete genetic structures, i.e., the fixation of a limited
E. Ya. Frisman, O. L. Zhdanova
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Fixation of alleles and depleted levels of genetic variation within populations of the endangered lithophytic orchid Amitostigma gracile (Orchidaceae) in South Korea: implications for conservation [PDF]

open access: possiblePlant Systematics and Evolution, 2008
To date, empirical studies on levels of genetic diversity in highly isolated populations of lithophytic orchids are few. We investigated levels of allozyme diversity and spatial distribution of genotypes in small, isolated populations of the endangered, self-compatible lithophyte Amitostigma gracile from southern Korea.
Chong-Wook Park, Mi Yoon Chung
openaire   +1 more source
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Sharp Asymptotics for Fixation Times in Stochastic Population Genetics Models at Low Mutation Probabilities

Journal of Statistical Physics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alain Cercueil, Olivier François
openaire   +2 more sources

Fixation indices and genetic diversity in hermaphroditic and gynodioecious populations of Japanese Chionographis (Liliaceae) [PDF]

open access: possibleHeredity, 1992
In Japanese Chionographis, populations are either hermaphroditic or gynodioecious, and diploid or tetraploid. The average level of inbreeding was compared among these populations by estimating Wright's fixation index. The estimates were significant in all gynodioecious populations irrespective of ploidy level, and hermaphrodites in gynodioecious ...
openaire   +1 more source

The genetic diversity and applicability assessment of autosomal STRs among Chinese populations by a novel Fixation Index and Nei’s index

Legal Medicine, 2018
The population-specific FST in STR loci of Chinese populations has not been focused on. Here, we genotyped 19 STRs in 530 unrelated healthy individuals of Xuzhou Han population, and collected data of 30,308 samples from 32 Hans and 50 minorities nationwide.
Caiyong Yin   +7 more
openaire   +3 more sources

Population Genetic Structure and the Fixation of Chromosomal Rearrangements in Sceloporus grammicus (Sauria, Iguanidae): A Computer Simulation Study

Copeia, 1988
This paper reports on a series of computer simulations designed to examine some population genetic correlates associated with the stochastic fixation of novel chromosomal rearrangements appearing in small isolated populations as specified by the cascading speciation model.
Ronald K. Chesser   +2 more
openaire   +2 more sources

Near-fixation of a Pfmsp1 block 2 allelic variant in genetically diverse Plasmodium falciparum populations across Western Colombia

Acta Tropica, 2010
Assessment of the genetic diversity of Plasmodium falciparum in 110 Colombian isolates revealed that nearly all the parasites in the 97 isolates collected in endemic regions west of the Andes shared the same Pfmsp1 block 2 MAD20-type allelic variant, despite showing high diversity for other genetical markers.
Laurent Rénia   +10 more
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[Analysis of the fixation of discrete genetic structures by means of an integral model of evolution in a Mendelian one-locus population of diploid organisms].

Genetika, 2005
An integral model of the evolution of a Mendelian one-locus population of diploid organisms with continual allele diversity developing under density-limiting conditions or without density limitation has been proposed and analyzed. The model was used to study the mechanism of the appearance of discrete genetic structures, i.e., the fixation of a limited
E Ia, Frisman, O L, Zhdanova
openaire   +1 more source

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