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      https://www.ias.ac.in/article/fulltext/jgen/094/04/0643-0649

    • Keywords

       

      development time; egg-to-adult viability; hybridization; synergistic effect.

    • Abstract

       

      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.

    • Author Affiliations

       

      Marija Tanaskovic1 Zorana Kurbalija Novicic2 Bojan Kenig2 Marina Stamenkovic-Radak1 2 Marko Andjelkovic3

      1. Faculty of Biology, University of Belgrade, Studentski Trg 3, 11000 Belgrade, Republic of Serbia
      2. Institute of Biological Research `Sinisa Stankovic’, University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Republic of Serbia
      3. Serbian Academy of Sciences and Arts, Belgrade, Knez Mihailova 35, Republic of Serbia
    • Dates

       
  • Journal of Genetics | News

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