Results 241 to 247 of about 145,239 (247)

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.
Jack W. Sites, Ronald K. Chesser, Robert J. Baker   +2 more
openaire   +1 more source

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.
Judy Natalia, Jiménez, Georges, Snounou, Frank, Letourneur, Laurent, Rénia, Iván D, Vélez, Carlos E, Muskus   +5 more
openaire   +2 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

Russian 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
openaire   +1 more source

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

Plant 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.
Mi Yoon Chung, C.-W. Park
openaire   +1 more source

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

Heredity, 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

[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

Average time until fixation of a mutant allele in a finite population under continued mutation pressure: Studies by analytical, numerical, and pseudo-sampling methods (population genetics/evolution/stochastic process/degeneration of character/Monte Carlo simulation)

, 2016
Makoto Kimura
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