• Marija Tanaskovic

      Articles written in Journal of Genetics

    • Effect of lead pollution on fitness and its dependence on heterozygosity in Drosophila subobscura

      Marija Tanaskovic Zorana Kurbalija Novicic Bojan Kenig Marina Stamenkovic-Radak Marko Andjelkovic

      More Details Abstract Fulltext PDF

      Lead is one of the most present contaminants in the environment, and different species respond differently to this type of pollution. If combined with genomic stress, lead may act synergistically, causing significant decrease of fitness components. We used two genetically diverse Drosophila subobscura populations (regarding both putatively adaptive inversion and microsatellite loci polymorphisms) originating from two ecologically distinct habitats. To establish different levels of genome heterozygosity, series of intraline, intrapopulation and interpopulation crosses were made. The progeny were reared on a standard medium and a medium with 200 𝜇g/mL of lead acetate. Development time was significantly extended to all groups reared on lead. The progeny of intraline crosses showed significantly extended development time compared to all other groups. The obtained results suggest that genome heterozygosity reduces the effect of lead pollution.

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