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Anastasia Tsagkarakou - One of the best experts on this subject based on the ideXlab platform.

  • Acetylcholinesterase point mutations in European strains of Tetranychus urticae (Acari: Tetranychidae) resistant to organophosphates
    Pest Management Science, 2009
    Co-Authors: Jahangir Khajehali, Thomas Van Leeuwen, Maria Grispou, Evangelia Morou, Haoues Alout, Mylene Weill, Luc Tirry, John Vontas, Anastasia Tsagkarakou
    Abstract:

    In Tetranychus urticae Koch, acetylcholinesterase insensitivity is often involved in organophosphate (OP) and carbamate (CARB) resistance. By combining toxicological, biochemical and molecular data from three reference laboratory and three OP selected strains (OP strains), the AChE1 mutations associated with resistance in T. urticae were characterised.

  • Genetic Differentiation in Tetranychus urticae (Acari: Tetranychidae) from greenhouses in France
    Experimental & Applied Acarology, 1999
    Co-Authors: Anastasia Tsagkarakou, Maria Navajas, François Rousset, Nicole Pasteur
    Abstract:

    The polymorphism of 4 enzymatic systems of 21 Tetranychus urticae samples collected in southern France was analyzed in order to ascertain genetic differentiation within and between greenhouses. Genetic structure was investigated in relation to mite density, geographic distribution of greenhouses and the colonized host plant. We found that mite density and distribution of infested plants influence gene flow within greenhouses. Between greenhouses isolation by distance was significant. Differentiation did not appear to be associated with the colonized plant species.

  • Gene flow among Tetranychus urticae (Acari : Tetranychidae) populations in Greece
    Molecular Ecology, 1998
    Co-Authors: Anastasia Tsagkarakou, Maria Navajas, P. Papaioannou-souliotis, Nicole Pasteur
    Abstract:

    Polymorphism of four enzymatic loci has been examined in 27 populations of Tetranychus urticae in relation to their geographical distribution and to two ecological parameters: open field vs. greenhouse habitats, and species of the colonized host plant. Genetic differentiation was significantly correlated to geographical distance in both types of habitat. Mite density and distribution of infested plants appear to be important factors for the population structure of T. urticae. In open field, T. urticae specimens from citrus trees were genetically more similar to other 'citrus' samples collected in different localities than they were from mites collected in the same locality on other plant species.

Nicole Pasteur - One of the best experts on this subject based on the ideXlab platform.

  • Genetic Differentiation in Tetranychus urticae (Acari: Tetranychidae) from greenhouses in France
    Experimental & Applied Acarology, 1999
    Co-Authors: Anastasia Tsagkarakou, Maria Navajas, François Rousset, Nicole Pasteur
    Abstract:

    The polymorphism of 4 enzymatic systems of 21 Tetranychus urticae samples collected in southern France was analyzed in order to ascertain genetic differentiation within and between greenhouses. Genetic structure was investigated in relation to mite density, geographic distribution of greenhouses and the colonized host plant. We found that mite density and distribution of infested plants influence gene flow within greenhouses. Between greenhouses isolation by distance was significant. Differentiation did not appear to be associated with the colonized plant species.

  • Gene flow among Tetranychus urticae (Acari : Tetranychidae) populations in Greece
    Molecular Ecology, 1998
    Co-Authors: Anastasia Tsagkarakou, Maria Navajas, P. Papaioannou-souliotis, Nicole Pasteur
    Abstract:

    Polymorphism of four enzymatic loci has been examined in 27 populations of Tetranychus urticae in relation to their geographical distribution and to two ecological parameters: open field vs. greenhouse habitats, and species of the colonized host plant. Genetic differentiation was significantly correlated to geographical distance in both types of habitat. Mite density and distribution of infested plants appear to be important factors for the population structure of T. urticae. In open field, T. urticae specimens from citrus trees were genetically more similar to other 'citrus' samples collected in different localities than they were from mites collected in the same locality on other plant species.

J.a.j. Breeuwer - One of the best experts on this subject based on the ideXlab platform.

Katayoon Kheradmand - One of the best experts on this subject based on the ideXlab platform.

Mohammadreza Havasi - One of the best experts on this subject based on the ideXlab platform.