[Nucleotide sequences of the microsatellite locus Du215 (arm) allelic variants in the parthenospecies Darevskia armeniaca (Lacertidae)].

Genetika (Impact Factor: 0.37). 03/2007; 43(2):170-5. DOI: 10.1134/S1022795407020032
Source: PubMed

ABSTRACT Using monolocus PCR analysis with the pairs of primers designed for the Du215 locus of Darevskia unisexualis, allelic polymorphism at the orthologous locus in the populations of the related parthenospecies D. armeniaca was investigated. It was demonstrated that Du215 (arm) locus was polymorphic and in the populations of parthenospecies D. armeniaca (n = 127) represented by at least three allelic variants, differing from each other by the size and composition of microsatellite cluster, and by single nucleotide substitutions in flanking DNA. Unlike the Du215 locus, Du215 (arm) was shown contain not only GATA, but also (GACA) repeats, which were absent in D. unisexualis. Thus, in this study, the data on the molecular nature of allelic polymorphism at one of the microsatellite loci of the parthenospecies D. armeniaca were reported.

  • [Show abstract] [Hide abstract]
    ABSTRACT: By the use of the coupling theory of the modes and the multimode rate equations, the performances of the multimode fiber amplifiers or lasers containing a spatial filter have been discussed. After the rate equations applicable to amplifiers are solved, the beam quality factors of the output from a multimode fiber amplifier with and without a single mode filter have been evaluated and compared. By the use of the analytical expression of the threshold pump power applicable to the multimode fiber lasers with the spatial filter and doped with quasi two-energy-level ions, and two example fibers had been selected which may guide 4 and 9 transversal modes, respectively, the threshold pump power for each transversal fiber mode has been evaluated. The results indicate that the single mode filter, does introduce a very strong discrimination for the modes between the high order modes and the fundamental mode. This should considerably favor the operation of the fundamental mode in the lasers with a homogeneously broadened active medium.
    Optik - International Journal for Light and Electron Optics 12/2011; · 0.77 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The molecular structure of the allelic variants of (AAT)n of the Du47D microsatellite locus was determined in parthenogenetic lizards Darevskia dahli, D. armeniaca, and D. rostombekovi. Comparative analysis of these alleles showed that they were characterized by perfect structure of microsatellite cluster, and were different in the number of (AAT) monomeric units, as well as in the combinations of species-specific substitutions and deletions in the microsatellite flanking regions. Molecular structure of microsatellite cluster, species-specific single nucleotide polymorphism (SNP), and different representation of alleles Du47 in the samples of parthenogenetic species examined point to the origin of the alleles from different bisexual species, which is consistent with the hybrid nature of unisexual species of the genus Darevskia. In addition, these data reflect different combination patterns of interspecific hybridization events with the participation of the same bisexual species upon the formation of hybrid genomes of parthenogenetic species. Possible application of the allelic variants of microsatellite loci of parthenogenetic lizards as the genetic markers for the analysis of the genomes of parthenogenetic species in the light of evolution, ecology, and parthenogenetic type of reproduction in vertebrates is discussed.
    Russian Journal of Genetics 03/2013; 49(3):420-424. · 0.41 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: We present the results of simulating solar radiative fluxes at wavelengths of 0.2–5 μm in the clearsky atmosphere using regional models of the altitude distributions of temperature, pressure, and water vapor concentration, characteristic for summer (July) and winter (January) conditions of Western Siberia, and AFGL latitudinal meteorological models. The fluxes of upward and downward radiation, calculated with different altitude profiles of water vapor concentration for a constant value of atmospheric columnar moisture content, are compared. An electronic archive is created to increase the efficiency of massive radiation calculations; the archive contains the approximations of the transmission function of atmospheric gases by exponential series for a base set of the column water vapor content in the range of 0.5–3 g/cm2, using the HITRAN-2008 spectroscopic database.
    Atmospheric and Oceanic Optics 04/2012; 25(2).


Available from